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<document id="DFD09CF6196165B29F68DFD7E76EB742" ID-DOI="10.11646/phytotaxa.137.1.4" ID-ISSN="1179-3163" ID-Zenodo-Dep="5086295" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1625844615059" checkinUser="felipe" docAuthor="González-Resendiz, Laura, León-Tejera, Hilda P., Díaz-Larrea, Jhoana, Alba-Lois, Luisa &amp; Segal-Kischinevzky, Claudia" docDate="2013" docId="7A68D210FFF8FF985EFFF9ABFD3FFBDC" docLanguage="en" docName="Phytotaxa.137.1.35-47.pdf" docOrigin="Phytotaxa 137 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.137.1.4" docStyle="DocumentStyle:13F189B31CB4CCCE9197361A4E100104.3:Phytotaxa.2011-2013.journal_article" docStyleId="13F189B31CB4CCCE9197361A4E100104" docStyleName="Phytotaxa.2011-2013.journal_article" docStyleVersion="3" docTitle="Hassallia littoralis Gonzalez-Resendiz &amp; Leon-Tejera 2013, sp. nov." docType="treatment" docVersion="3" lastPageNumber="41" masterDocId="8651AA68FFFAFF9E5E68FFDDFFA6FFD8" masterDocTitle="Hassallia littoralis sp. nov. (Cyanobacteria, Microchaetaceae) from Mexico’s marine supralittoral based on morphological and molecular evidence" masterLastPageNumber="47" masterPageNumber="35" pageNumber="37" updateTime="1698997189016" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="D950AB48DFE6B4875BD7BA70143E27F6">Hassallia littoralis sp. nov. (Cyanobacteria, Microchaetaceae) from Mexico’s marine supralittoral based on morphological and molecular evidence</mods:title>
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<mods:namePart id="EDE46FBCE72321597BBF86AF41796049">González-Resendiz, Laura</mods:namePart>
<mods:affiliation id="27FB65AB730687D67A56FB7EF63BC110">Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM). Coyoacán, Código Postal 04510, P. O. Box 70 - 474, Mexico, Distrito Federal (D. F.), Mexico &amp; Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México (UNAM).</mods:affiliation>
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<mods:namePart id="7515B6F5E7543EC59AD9C811B7979401">León-Tejera, Hilda P.</mods:namePart>
<mods:affiliation id="6EAD7548573679FC7375C9D4D4124070">Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM). Coyoacán, Código Postal 04510, P. O. Box 70 - 474, Mexico, Distrito Federal (D. F.), Mexico</mods:affiliation>
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<mods:namePart id="A2711BE408AA61721E492B1A3EF5B38C">Díaz-Larrea, Jhoana</mods:namePart>
<mods:affiliation id="272B3523D31603854E99E6EBA348CDAA">Departamento de Hidrobiología. Universidad Autónoma Metropolitana-Iztapalapa. A. P. 55 - 535, México, D. F. 09340, México. Departamento de Biología Celular, Facultad de Ciencias, UNAM, México D. F., México.</mods:affiliation>
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<mods:namePart id="FEA347531F40266805C51E06892FC399">Alba-Lois, Luisa</mods:namePart>
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<mods:namePart id="7B4E3F7ACBAB95C689658D486B200051">Segal-Kischinevzky, Claudia</mods:namePart>
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<mods:title id="27CD295342D040B70FADC1D4B350C696">Phytotaxa</mods:title>
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<treatment id="7A68D210FFF8FF985EFFF9ABFD3FFBDC" LSID="urn:lsid:plazi:treatment:7A68D210FFF8FF985EFFF9ABFD3FFBDC" httpUri="http://treatment.plazi.org/id/7A68D210FFF8FF985EFFF9ABFD3FFBDC" lastPageId="6" lastPageNumber="41" pageId="2" pageNumber="37">
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<paragraph id="F27E6306FFF8FF9C5EFFF9ABFBA2F949" blockId="2.[151,1028,1654,1681]" box="[151,1028,1654,1681]" pageId="2" pageNumber="37">
<heading id="A936D46AFFF8FF9C5EFFF9ABFBA2F949" box="[151,1028,1654,1681]" fontSize="11" level="2" pageId="2" pageNumber="37" reason="3">
<taxonomicName id="35C11885FFF8FF9C5EFFF9ABFCAAF949" authority="Gonzalez-Resendiz &amp; Leon-Tejera" authorityName="Gonzalez-Resendiz &amp; Leon-Tejera" authorityYear="2013" box="[151,780,1654,1681]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="2" pageNumber="37" phylum="Cyanobacteria" rank="species" species="littoralis" status="sp. nov.">
<emphasis id="C0B5BF14FFF8FF9C5EFFF9ABFED6F948" bold="true" box="[151,368,1654,1680]" italics="true" pageId="2" pageNumber="37">Hassallia littoralis</emphasis>
González-Resendiz &amp; León-Tejera
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,
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.
<emphasis id="C0B5BF14FFF8FF9C5D57F9AAFCCFF949" box="[831,873,1655,1681]" italics="true" pageId="2" pageNumber="37">nov</emphasis>
.
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(
<figureCitation id="6AFA7F83FFF8FF9C5DE8F9AAFC5CF949" box="[896,1018,1655,1681]" captionStart-0="FIGURES 1–9" captionStart-1="FIGURES 10–16" captionStart-2="FIGURES 17–19" captionStart-3="FIGURES 20–25" captionStartId-0="3.[151,259,1871,1893]" captionStartId-1="4.[151,258,1862,1884]" captionStartId-2="5.[151,258,629,651]" captionStartId-3="5.[151,258,1668,1690]" captionTargetBox-0="[235,1348,203,1844]" captionTargetBox-1="[234,1351,196,1839]" captionTargetBox-2="[152,1435,286,605]" captionTargetBox-3="[160,1413,742,1629]" captionTargetId-0="figure-122@3.[232,1354,197,1846]" captionTargetId-1="figure-112@4.[232,1354,191,1841]" captionTargetId-2="figure-263@5.[151,1436,286,615]" captionTargetId-3="figure-272@5.[151,1436,708,1665]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="5" captionText-0="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." captionText-1="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." captionText-2="FIGURES 17–19. Hassallia littoralis TEM images. Fig. 17. Hormogonia formation through a necridic cell. Fig. 18. Young isopolar hormogonium with a wide stratified sheath. Fig. 19. Evident polar nodule in a basal heterocyte. Scale bars: Fig. 17: 3 µm, Fig. 18: 5 µm, Fig. 19: 1 µm." captionText-3="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi-0="http://doi.org/10.5281/zenodo.5086297" figureDoi-1="http://doi.org/10.5281/zenodo.5086299" figureDoi-2="http://doi.org/10.5281/zenodo.5086301" figureDoi-3="http://doi.org/10.5281/zenodo.5086303" httpUri-0="https://zenodo.org/record/5086297/files/figure.png" httpUri-1="https://zenodo.org/record/5086299/files/figure.png" httpUri-2="https://zenodo.org/record/5086301/files/figure.png" httpUri-3="https://zenodo.org/record/5086303/files/figure.png" pageId="2" pageNumber="37">Figs. 1–25</figureCitation>
)
</heading>
</paragraph>
<paragraph id="F27E6306FFF8FF9C5EFFF940FC56F82C" blockId="2.[151,1437,1693,2036]" pageId="2" pageNumber="37">
Cespitose short mats brown to blackish (
<figureCitation id="6AFA7F83FFF8FF9C5C22F940FD17F96C" box="[586,689,1693,1716]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 1, 2</figureCitation>
), filaments cylindrical (
<figureCitation id="6AFA7F83FFF8FF9C5DD9F940FC59F96C" box="[945,1023,1693,1716]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Fig. 13</figureCitation>
), straight or curved; parallely oriented or intermingled, sometimes forming fascicles
<quantity id="3539CEE3FFF8FF9C5CD8F960FC90F90C" box="[688,822,1725,1748]" metricMagnitude="-1" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="2" pageNumber="37" unit="mm" value="250.0" valueMax="300.0" valueMin="200.0">200–300 µm</quantity>
long and
<quantity id="3539CEE3FFF8FF9C5DC8F960FC59F90C" box="[928,1023,1725,1748]" metricMagnitude="-3" metricUnit="m" metricValue="8.5" metricValueMax="12.0" metricValueMin="5.0" pageId="2" pageNumber="37" unit="mm" value="8.5" valueMax="12.0" valueMin="5.0">5–12 µm</quantity>
in diameter, without a common sheath (
<figureCitation id="6AFA7F83FFF8FF9C5EA7F900FE92F92C" box="[207,308,1757,1780]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 2, 3</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5F28F900FE20F92C" box="[320,390,1757,1780]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="2" pageNumber="37">20, 21</figureCitation>
). Falsely branched, branches tightly joined or irregularly divaricated to the main filament (
<figureCitation id="6AFA7F83FFF8FF9C5B24F900FF70F8CC" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 4, 8</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5E8CF920FF59F8CC" box="[228,255,1789,1812]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">11</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5F66F920FEF0F8CC" box="[270,342,1789,1812]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="2" pageNumber="37">21, 24</figureCitation>
). Trichomes
<quantity id="3539CEE3FFF8FF9C5F8EF920FD9CF8CC" box="[486,570,1789,1812]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="6.0" metricValueMin="3.0" pageId="2" pageNumber="37" unit="mm" value="4.5" valueMax="6.0" valueMin="3.0">3–6 µm</quantity>
wide (
<figureCitation id="6AFA7F83FFF8FF9C5CE1F920FD52F8CC" box="[649,756,1789,1812]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 3, 5</figureCitation>
), constricted at cross-walls (
<figureCitation id="6AFA7F83FFF8FF9C5A47F920FB10F8CC" box="[1071,1206,1789,1812]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Figs. 15, 16</figureCitation>
). Cells cylindrical to barrel-shaped (
<figureCitation id="6AFA7F83FFF8FF9C5F03F8C0FE51F8EC" box="[363,503,1821,1844]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Figs. 15, 16</figureCitation>
), shorter than wide,
<quantity id="3539CEE3FFF8FF9C5C8EF8C0FC9BF8EC" box="[742,829,1821,1844]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="6.0" metricValueMin="3.0" pageId="2" pageNumber="37" unit="mm" value="4.5" valueMax="6.0" valueMin="3.0">3–6 µm</quantity>
wide,
<quantity id="3539CEE3FFF8FF9C5DE7F8C0FC40F8EC" box="[911,998,1821,1844]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" metricValueMax="3.0" metricValueMin="1.0" pageId="2" pageNumber="37" unit="mm" value="2.0" valueMax="3.0" valueMin="1.0">1–3 µm</quantity>
long, with slightly granulated content. Terminal cells widely rounded, sometimes nearly spherical, hyaline to greenish or yellowish (
<figureCitation id="6AFA7F83FFF8FF9C5ADEF8E0FAC6F88C" box="[1206,1376,1853,1876]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Figs. 12, 15, 16</figureCitation>
) (
<quantity id="3539CEE3FFF8FF9C5B1FF8E0FF4CF8AC" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="2" pageNumber="37" unit="mm" value="3.0" valueMax="4.0" valueMin="2.0">2-4 µm</quantity>
long ×
<quantity id="3539CEE3FFF8FF9C5F28F880FE35F8AC" box="[320,403,1885,1908]" metricMagnitude="-3" metricUnit="m" metricValue="4.5" metricValueMax="6.0" metricValueMin="3.0" pageId="2" pageNumber="37" unit="mm" value="4.5" valueMax="6.0" valueMin="3.0">3–6 µm</quantity>
wide). Sheaths firm, stratified, slender, hyaline (
<figureCitation id="6AFA7F83FFF8FF9C5DCCF880FC54F8AC" box="[932,1010,1885,1908]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Fig. 16</figureCitation>
) to thick and amber or dark yellowishbrown, often widening with pronounced, rounded terminals (
<quantity id="3539CEE3FFF8FF9C5D25F8A0FC39F84C" box="[845,927,1917,1940]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" metricValueMax="7.0" metricValueMin="3.0" pageId="2" pageNumber="37" unit="mm" value="5.0" valueMax="7.0" valueMin="3.0">3–7 µm</quantity>
in diameter) (
<figureCitation id="6AFA7F83FFF8FF9C5A5CF8A0FB7DF84C" box="[1076,1243,1917,1940]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Figs. 11, 12, 16</figureCitation>
), generally closed and rarely opened at the apex (
<figureCitation id="6AFA7F83FFF8FF9C5C65F840FD29F86C" box="[525,655,1949,1972]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">Figs. 10, 14</figureCitation>
). Heterocytes spherical, ovoid to cylindrical (
<figureCitation id="6AFA7F83FFF8FF9C5A1CF840FB52F86C" box="[1140,1268,1949,1972]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 4, 5, 9</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5A97F840FABCF86C" box="[1279,1306,1949,1972]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">11</figureCitation>
),
<quantity id="3539CEE3FFF8FF9C5B47F840FA27F86C" box="[1327,1409,1949,1972]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" metricValueMax="6.0" metricValueMin="4.0" pageId="2" pageNumber="37" unit="mm" value="5.0" valueMax="6.0" valueMin="4.0">4–6 µm</quantity>
in diameter,
<quantity id="3539CEE3FFF8FF9C5F5BF860FE21F80C" box="[307,391,1981,2004]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" metricValueMax="8.0" metricValueMin="4.0" pageId="2" pageNumber="37" unit="mm" value="6.0" valueMax="8.0" valueMin="4.0">4–8 µm</quantity>
long (
<figureCitation id="6AFA7F83FFF8FF9C5FB8F860FDB4F80C" box="[464,530,1981,2004]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Fig. 5</figureCitation>
), one basal (
<figureCitation id="6AFA7F83FFF8FF9C5CC8F860FCADF80C" box="[672,779,1981,2004]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 4, 8</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5D70F860FC95F80C" box="[792,819,1981,2004]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="2" pageNumber="37">11</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5D2AF860FCF9F80C" box="[834,863,1981,2004]" captionStart="FIGURES 17–19" captionStartId="5.[151,258,629,651]" captionTargetBox="[152,1435,286,605]" captionTargetId="figure-263@5.[151,1436,286,615]" captionTargetPageId="5" captionText="FIGURES 17–19. Hassallia littoralis TEM images. Fig. 17. Hormogonia formation through a necridic cell. Fig. 18. Young isopolar hormogonium with a wide stratified sheath. Fig. 19. Evident polar nodule in a basal heterocyte. Scale bars: Fig. 17: 3 µm, Fig. 18: 5 µm, Fig. 19: 1 µm." figureDoi="http://doi.org/10.5281/zenodo.5086301" httpUri="https://zenodo.org/record/5086301/files/figure.png" pageId="2" pageNumber="37">19</figureCitation>
), rarely two (
<figureCitation id="6AFA7F83FFF8FF9C5D9CF860FB9EF80C" box="[1012,1080,1981,2004]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Fig. 9</figureCitation>
), and less frequently intercalary. Akinetes not detected. Reproduction by hormogonia (
<figureCitation id="6AFA7F83FFF8FF9C5D6BF800FCCCF82C" box="[771,874,2013,2036]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="2" pageNumber="37">Figs. 6, 7</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5D1DF800FC34F82C" box="[885,914,2013,2036]" captionStart="FIGURES 17–19" captionStartId="5.[151,258,629,651]" captionTargetBox="[152,1435,286,605]" captionTargetId="figure-263@5.[151,1436,286,615]" captionTargetPageId="5" captionText="FIGURES 17–19. Hassallia littoralis TEM images. Fig. 17. Hormogonia formation through a necridic cell. Fig. 18. Young isopolar hormogonium with a wide stratified sheath. Fig. 19. Evident polar nodule in a basal heterocyte. Scale bars: Fig. 17: 3 µm, Fig. 18: 5 µm, Fig. 19: 1 µm." figureDoi="http://doi.org/10.5281/zenodo.5086301" httpUri="https://zenodo.org/record/5086301/files/figure.png" pageId="2" pageNumber="37">18</figureCitation>
,
<figureCitation id="6AFA7F83FFF8FF9C5DF5F800FC45F82C" box="[925,995,2013,2036]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="2" pageNumber="37">22, 23</figureCitation>
).
</paragraph>
</subSubSection>
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<paragraph id="F27E6306FFF9FF9D5EFFF892FA3BF802" blockId="3.[151,1437,1871,2010]" pageId="3" pageNumber="38">
<emphasis id="C0B5BF14FFF9FF9D5EFFF892FE92F8BD" bold="true" box="[151,308,1871,1893]" pageId="3" pageNumber="38">FIGURES 1–9.</emphasis>
Morphological features of
<taxonomicName id="35C11885FFF9FF9D5C2AF88DFD5DF8BD" authorityName="Gonzalez-Resendiz &amp; Leon-Tejera" authorityYear="2013" box="[578,763,1872,1893]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="3" pageNumber="38" phylum="Cyanobacteria" rank="species" species="littoralis">
<emphasis id="C0B5BF14FFF9FF9D5C2AF88DFD5DF8BD" box="[578,763,1872,1893]" italics="true" pageId="3" pageNumber="38">Hassallia littoralis</emphasis>
</taxonomicName>
. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth
<taxonomicName id="35C11885FFF9FF9D5F03F8B0FE6AF85A" box="[363,460,1901,1922]" form="with" pageId="3" pageNumber="38" rank="form">form with</taxonomicName>
lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm.
</paragraph>
</caption>
<caption id="A6BE338EFFFEFF9A5EFFF89BFD32F809" ID-DOI="http://doi.org/10.5281/zenodo.5086299" ID-Zenodo-Dep="5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="4" pageNumber="39" startId="4.[151,258,1862,1884]" targetBox="[234,1351,196,1839]" targetPageId="4">
<paragraph id="F27E6306FFFEFF9A5EFFF89BFD32F809" blockId="4.[151,1436,1862,2001]" pageId="4" pageNumber="39">
<emphasis id="C0B5BF14FFFEFF9A5EFFF89BFEEEF884" bold="true" box="[151,328,1862,1884]" pageId="4" pageNumber="39">FIGURES 10–16.</emphasis>
Morphological features of
<taxonomicName id="35C11885FFFEFF9A5C25F89BFCA4F883" authorityName="Gonzalez-Resendiz &amp; Leon-Tejera" authorityYear="2013" box="[589,770,1862,1883]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="4" pageNumber="39" phylum="Cyanobacteria" rank="species" species="littoralis">
<emphasis id="C0B5BF14FFFEFF9A5C25F89BFCA4F883" box="[589,770,1862,1883]" italics="true" pageId="4" pageNumber="39">Hassallia littoralis</emphasis>
</taxonomicName>
. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm.
</paragraph>
</caption>
<subSubSection id="BADB308DFFFFFF9B5EFFFF45FDB3FF37" pageId="5" pageNumber="40" type="materials_examined">
<paragraph id="F27E6306FFFFFF9B5EFFFF45FDB3FF37" blockId="5.[151,1436,152,239]" pageId="5" pageNumber="40">
<emphasis id="C0B5BF14FFFFFF9B5EFFFF45FF69FF77" bold="true" box="[151,207,152,175]" pageId="5" pageNumber="40">Type</emphasis>
:
<emphasis id="C0B5BF14FFFFFF9B5EBEFF45FF57FF77" bold="true" box="[214,241,152,175]" pageId="5" pageNumber="40">—</emphasis>
<materialsCitation id="42A9695BFFFFFF9B5E99FF45FDB6FF37" accessionNumber="KF017617" collectingDate="2011-02-02" collectionCode="FCME, UAMIZ" country="Mexico" county="Tangolunda bay" latitude="15.773553" location="Leon-Tejera" longLatPrecision="1" longitude="-96.0912" municipality="Marine" pageId="5" pageNumber="40" specimenCode="PTM9586, PTM9587, PTM9588" specimenCount="2" stateProvince="Oaxaca" typeStatus="holotype">
<collectingCountry id="8AD62396FFFFFF9B5E99FF45FEF8FF77" box="[241,350,152,175]" name="Mexico" pageId="5" pageNumber="40">MEXICO</collectingCountry>
.
<collectingRegion id="3005ADE4FFFFFF9B5F0FFF45FE1DFF77" box="[359,443,152,175]" country="Mexico" name="Oaxaca" pageId="5" pageNumber="40">Oaxaca</collectingRegion>
:
<collectingCounty id="1B1F1B8AFFFFFF9B5FADFF45FDD7FF77" box="[453,625,152,175]" pageId="5" pageNumber="40">Tangolunda bay</collectingCounty>
,
<geoCoordinate id="97F505C1FFFFFF9B5C14FF45FC91FF77" box="[636,823,152,175]" degrees="15" direction="north" minutes="46" orientation="latitude" pageId="5" pageNumber="40" precision="1" seconds="24.79" value="15.773553">15° 46’ 24.79” N</geoCoordinate>
,
<geoCoordinate id="97F505C1FFFFFF9B5D2AFF45FC52FF77" box="[834,1012,152,175]" degrees="96" direction="west" minutes="5" orientation="longitude" pageId="5" pageNumber="40" precision="1" seconds="28.32" value="-96.0912">96° 5’ 28.32” W</geoCoordinate>
.
<collectingMunicipality id="121AF97CFFFFFF9B5D96FF45FBEDFF77" box="[1022,1099,152,175]" pageId="5" pageNumber="40">Marine</collectingMunicipality>
supralittoral,
<emphasis id="C0B5BF14FFFFFF9B5A89FF45FF5DFF17" italics="true" pageId="5" pageNumber="40">
<location id="F71E35DDFFFFFF9B5A89FF45FAC3FF77" LSID="urn:lsid:plazi:treatment:7A68D210FFF8FF985EFFF9ABFD3FFBDC:F71E35DDFFFFFF9B5A89FF45FAC3FF77" box="[1249,1381,152,175]" country="Mexico" county="Tangolunda bay" latitude="15.773553" longLatPrecision="1" longitude="-96.0912" municipality="Marine" name="Leon-Tejera" pageId="5" pageNumber="40" stateProvince="Oaxaca">León-Tejera</location>
,
<date id="867F45C6FFFFFF9B5B07FF45FF5DFF17" pageId="5" pageNumber="40" value="2011-02-02">
<collectingDate id="963BBC2EFFFFFF9B5B07FF45FF5DFF17" pageId="5" pageNumber="40" value="2011-02-02">2-2- 2011</collectingDate>
</date>
</emphasis>
(
<typeStatus id="2D7ADDA4FFFFFF9B5F60FF65FEC1FF17" box="[264,359,184,207]" pageId="5" pageNumber="40" type="holotype">holotype</typeStatus>
<collectionCode id="94D0FBC3FFFFFF9B5F06FF65FE1AFF17" box="[366,444,184,207]" country="Mexico" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15515" lsid="urn:lsid:biocol.org:col:15515" name="Universidad Nacional Autónoma de México, Ciudad Universitaria" pageId="5" pageNumber="40" type="Herbarium">FCME</collectionCode>
!
<specimenCode id="A267CB7DFFFFFF9B5FAFFF65FD93FF17" box="[455,565,184,207]" collectionCode="PTM" pageId="5" pageNumber="40">PTM9586</specimenCode>
, GenBank sequence access number KF017617, isotype
<collectionCode id="94D0FBC3FFFFFF9B5AE4FF65FB4FFF17" box="[1164,1257,184,207]" country="Mexico" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14270" lsid="urn:lsid:biocol.org:col:14270" name="Universidad Autónoma Metropolitana, Iztapalapa" pageId="5" pageNumber="40" type="Herbarium">UAMIZ</collectionCode>
! 1225,
<typeStatus id="2D7ADDA4FFFFFF9B5B5EFF65FA3AFF17" box="[1334,1436,184,207]" pageId="5" pageNumber="40" type="paratype">paratypes</typeStatus>
<collectionCode id="94D0FBC3FFFFFF9B5EAFFF05FEB3FF37" box="[199,277,216,239]" country="Mexico" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15515" lsid="urn:lsid:biocol.org:col:15515" name="Universidad Nacional Autónoma de México, Ciudad Universitaria" pageId="5" pageNumber="40" type="Herbarium">FCME</collectionCode>
!
<specimenCode id="A267CB7DFFFFFF9B5F77FF05FE28FF37" box="[287,398,216,239]" collectionCode="PTM" pageId="5" pageNumber="40">PTM9587</specimenCode>
,
<specimenCode id="A267CB7DFFFFFF9B5FF0FF05FDAFFF37" box="[408,521,216,239]" collectionCode="PTM" pageId="5" pageNumber="40">PTM9588</specimenCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<caption id="A6BE338EFFFFFF9B5EFFFDA8FEEDFD1D" ID-DOI="http://doi.org/10.5281/zenodo.5086301" ID-Zenodo-Dep="5086301" httpUri="https://zenodo.org/record/5086301/files/figure.png" pageId="5" pageNumber="40" startId="5.[151,258,629,651]" targetBox="[152,1435,286,605]" targetPageId="5">
<paragraph id="F27E6306FFFFFF9B5EFFFDA8FEEDFD1D" blockId="5.[151,1436,629,709]" pageId="5" pageNumber="40">
<emphasis id="C0B5BF14FFFFFF9B5EFFFDA8FEECFD53" bold="true" box="[151,330,629,651]" pageId="5" pageNumber="40">FIGURES 17–19.</emphasis>
<taxonomicName id="35C11885FFFFFF9B5F39FDA8FDE7FD52" authority="TEM" authorityName="TEM" box="[337,577,629,650]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="5" pageNumber="40" phylum="Cyanobacteria" rank="species" species="littoralis">
<emphasis id="C0B5BF14FFFFFF9B5F39FDA8FDA1FD52" box="[337,519,629,650]" italics="true" pageId="5" pageNumber="40">Hassallia littoralis</emphasis>
TEM
</taxonomicName>
images. Fig. 17. Hormogonia formation through a necridic cell. Fig. 18. Young isopolar hormogonium with a wide stratified sheath. Fig. 19. Evident polar nodule in a basal heterocyte. Scale bars: Fig. 17: 3 µm, Fig. 18: 5 µm, Fig. 19: 1 µm.
</paragraph>
</caption>
<caption id="A6BE338EFFFFFF9B5EFFF959FAD4F96F" ID-DOI="http://doi.org/10.5281/zenodo.5086303" ID-Zenodo-Dep="5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="5" pageNumber="40" startId="5.[151,258,1668,1690]" targetBox="[160,1413,742,1629]" targetPageId="5">
<paragraph id="F27E6306FFFFFF9B5EFFF959FAD4F96F" blockId="5.[151,1436,1668,1719]" pageId="5" pageNumber="40">
<emphasis id="C0B5BF14FFFFFF9B5EFFF959FEEFF942" bold="true" box="[151,329,1668,1690]" pageId="5" pageNumber="40">FIGURES 20–25.</emphasis>
<taxonomicName id="35C11885FFFFFF9B5F27F959FDA3F941" box="[335,517,1668,1689]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="5" pageNumber="40" phylum="Cyanobacteria" rank="species" species="littoralis">
<emphasis id="C0B5BF14FFFFFF9B5F27F959FDA3F941" box="[335,517,1668,1689]" italics="true" pageId="5" pageNumber="40">Hassallia littoralis</emphasis>
</taxonomicName>
habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm.
</paragraph>
</caption>
<subSubSection id="BADB308DFFFFFF985EFFF93BFD3FFBDC" lastPageId="6" lastPageNumber="41" pageId="5" pageNumber="40" type="etymology">
<paragraph id="F27E6306FFFFFF9B5EFFF93BFAEDF8D8" blockId="5.[151,1436,1766,2024]" box="[151,1355,1766,1792]" pageId="5" pageNumber="40">
<emphasis id="C0B5BF14FFFFFF9B5EFFF93BFE81F8D8" bold="true" box="[151,295,1766,1792]" pageId="5" pageNumber="40">Etymology:</emphasis>
—The species epithet was selected according to the specific environment (marine littoral).
</paragraph>
<paragraph id="F27E6306FFFFFF985EAEF8D0FD49FF27" blockId="5.[151,1436,1766,2024]" lastBlockId="6.[151,1436,152,1028]" lastPageId="6" lastPageNumber="41" pageId="5" pageNumber="40">
<emphasis id="C0B5BF14FFFFFF9B5EAEF8D0FE96F8FF" bold="true" box="[198,304,1805,1831]" pageId="5" pageNumber="40">Habitat:</emphasis>
—In Tangolunda Bay, supralittoral black mats of
<taxonomicName id="35C11885FFFFFF9B5DEBF8D0FC55F8FF" box="[899,1011,1805,1831]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="5" pageNumber="40" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFFFF9B5DEBF8D0FC55F8FF" box="[899,1011,1805,1831]" italics="true" pageId="5" pageNumber="40">Hassallia</emphasis>
</taxonomicName>
dominate this habitat and the three collected populations were epilithic mats from the rocky marine littoral. They were found growing on nearly vertical igneous rocks
<quantity id="3539CEE3FFFFFF9B5FC1F887FE71F8AC" box="[425,471,1882,1908]" metricMagnitude="0" metricUnit="m" metricValue="7.0" pageId="5" pageNumber="40" unit="m" value="7.0">7 m</quantity>
from the seaside and approximately
<quantity id="3539CEE3FFFFFF9B5DF0F887FC43F8AC" box="[920,997,1882,1908]" metricMagnitude="0" metricUnit="m" metricValue="4.5" metricValueMax="5.0" metricValueMin="4.0" pageId="5" pageNumber="40" unit="m" value="4.5" valueMax="5.0" valueMin="4.0">4–5 m</quantity>
above sea level, facing the sea. The rocks are only slightly wetted by the sea breeze and totally exposed to sunlight. Considering the maximal tidal heights of
<quantity id="3539CEE3FFFFFF9B5F7AF875FEF1F81A" box="[274,343,1960,1986]" metricMagnitude="0" metricUnit="m" metricValue="2.4" pageId="5" pageNumber="40" unit="m" value="2.4">2.4 m</quantity>
, probably they are never covered by the sea but grains of salt were found intermingled among filaments due to the sea breeze water evaporation. This species was found growing with several undescribed coccoid and LPP species (
<figureCitation id="6AFA7F83FFFCFF985FAFFF45FDACFF6A" box="[455,522,152,178]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="6" pageNumber="41">Fig. 1</figureCitation>
) but not with common filamentous non-heterocystous (
<taxonomicName id="35C11885FFFCFF985AFDFF45FA85FF6A" box="[1173,1315,152,178]" class="Cyanophyceae" family="Oscillatoriaceae" genus="Oscillatoria" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985AFDFF45FA85FF6A" box="[1173,1315,152,178]" italics="true" pageId="6" pageNumber="41">Oscillatoria</emphasis>
</taxonomicName>
,
<taxonomicName id="35C11885FFFCFF985B58FF45FA32FF6A" box="[1328,1428,152,178]" class="Cyanophyceae" family="Oscillatoriaceae" genus="Lyngbya" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985B58FF45FA32FF6A" box="[1328,1428,152,178]" italics="true" pageId="6" pageNumber="41">Lyngbya</emphasis>
</taxonomicName>
,
<taxonomicName id="35C11885FFFCFF985EFFFF63FE8CFF00" box="[151,298,190,216]" class="Cyanophyceae" family="Oscillatoriaceae" genus="Microcoleus" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985EFFFF63FE8CFF00" box="[151,298,190,216]" italics="true" pageId="6" pageNumber="41">Microcoleus</emphasis>
</taxonomicName>
,
<taxonomicName id="35C11885FFFCFF985F51FF63FE6BFF00" box="[313,461,190,216]" class="Cyanophyceae" family="Oscillatoriaceae" genus="Phormidium" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985F51FF63FE6BFF00" box="[313,461,190,216]" italics="true" pageId="6" pageNumber="41">Phormidium</emphasis>
</taxonomicName>
,
<taxonomicName id="35C11885FFFCFF985FB5FF63FDC4FF00" box="[477,610,190,216]" class="Maxillopoda" family="Leptastacidae" genus="Schizothrix" kingdom="Animalia" order="Harpacticoida" pageId="6" pageNumber="41" phylum="Arthropoda" rank="genus">
<emphasis id="C0B5BF14FFFCFF985FB5FF63FDC4FF00" box="[477,610,190,216]" italics="true" pageId="6" pageNumber="41">Schizothrix</emphasis>
</taxonomicName>
) or heterocystous genera (
<taxonomicName id="35C11885FFFCFF985DC9FF63FBB7FF00" box="[929,1041,190,216]" class="Gastropoda" family="Viviparidae" genus="Rivularia" higherTaxonomySource="CoL" kingdom="Animalia" order="Architaenioglossa" pageId="6" pageNumber="41" phylum="Mollusca" rank="genus">
<emphasis id="C0B5BF14FFFCFF985DC9FF63FBB7FF00" box="[929,1041,190,216]" italics="true" pageId="6" pageNumber="41">Rivularia</emphasis>
</taxonomicName>
,
<taxonomicName id="35C11885FFFCFF985A49FF63FB34FF00" box="[1057,1170,190,216]" class="Cyanophyceae" family="Rivulariaceae" genus="Calothrix" higherTaxonomySource="CoL" kingdom="Fungi" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985A49FF63FB34FF00" box="[1057,1170,190,216]" italics="true" pageId="6" pageNumber="41">Calothrix</emphasis>
</taxonomicName>
,
<taxonomicName id="35C11885FFFCFF985ACAFF63FA84FF00" box="[1186,1314,190,216]" class="Cyanophyceae" family="Scytonemataceae" genus="Scytonema" higherTaxonomySource="CoL" kingdom="Fungi" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985ACAFF63FA84FF00" box="[1186,1314,190,216]" italics="true" pageId="6" pageNumber="41">Scytonema</emphasis>
</taxonomicName>
) typically described for intertidal biotopes (
<bibRefCitation id="96501EF7FFFCFF985C73FF38FD45FF27" author="Brito, A. &amp; Ramos, V. &amp; Seabra, R. &amp; Santos, A. &amp; Santos, C. L. &amp; Lopo, M. &amp; Ferreira, S. &amp; Martins, A. &amp; Mota, R. &amp; Frazao, B. &amp; Martins, R. &amp; Vasconcelos, V. &amp; Tamagnini, P." box="[539,739,229,255]" pageId="6" pageNumber="41" pagination="110 - 119" refId="ref6154" refString="Brito, A., Ramos, V., Seabra, R., Santos, A., Santos, C. L., Lopo, M., Ferreira, S., Martins, A., Mota, R., Frazao, B., Martins, R., Vasconcelos, V. &amp; Tamagnini, P. (2012) Culture-dependent characterization of cyanobacterial diversity in the intertidal zones of the Portuguese coast: a polyphasic study. Systematic and Applied Microbiology 35: 110 - 119. http: // dx. doi. org / 10.1016 / j. syapm. 2011.07.003" type="journal article" year="2012">
Brito
<emphasis id="C0B5BF14FFFCFF985C09FF38FD32FF27" box="[609,660,229,255]" italics="true" pageId="6" pageNumber="41">et al</emphasis>
. 2012
</bibRefCitation>
).
</paragraph>
<paragraph id="F27E6306FFFCFF985EAEFED1FA94FE3F" blockId="6.[151,1436,152,1028]" pageId="6" pageNumber="41">
<emphasis id="C0B5BF14FFFCFF985EAEFED1FED0FEFE" bold="true" box="[198,374,268,294]" pageId="6" pageNumber="41">Observations:</emphasis>
—Cells appearing as monocytes and short hormogonia of 2 to 10 (15) cells long (
<figureCitation id="6AFA7F83FFFCFF985B5EFED1FA2BFEFE" box="[1334,1421,268,294]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="6" pageNumber="41">Fig. 25</figureCitation>
), are sometimes liberated. Young filaments and hormogonia are either isopolar (
<figureCitation id="6AFA7F83FFFCFF985A2BFEEFFB10FE94" box="[1091,1206,306,332]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="6" pageNumber="41">Figs. 6, 7</figureCitation>
,
<figureCitation id="6AFA7F83FFFCFF985AACFEEFFB45FE94" box="[1220,1251,306,332]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="6" pageNumber="41">24</figureCitation>
) or heteropolar (
<figureCitation id="6AFA7F83FFFCFF985EC8FE84FF51FEAB" box="[160,247,345,371]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="6" pageNumber="41">Figs. 9</figureCitation>
,
<figureCitation id="6AFA7F83FFFCFF985F6DFE84FE81FEAB" box="[261,295,345,371]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="6" pageNumber="41">22</figureCitation>
). Isopolar hormogonia formation through necridic cells (
<figureCitation id="6AFA7F83FFFCFF985DB6FE84FB91FEAB" box="[990,1079,345,371]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="6" pageNumber="41">Fig. 23</figureCitation>
) develop later terminal/basal heterocytes (
<figureCitation id="6AFA7F83FFFCFF985F45FE5DFE1DFE42" box="[301,443,384,410]" captionStart="FIGURES 1–9" captionStartId="3.[151,259,1871,1893]" captionTargetBox="[235,1348,203,1844]" captionTargetId="figure-122@3.[232,1354,197,1846]" captionTargetPageId="3" captionText="FIGURES 1–9. Morphological features of Hassallia littoralis. Fig. 1. Intermingled filaments as seen with epifluorescence. Fig. 2. Erect fascicle growth form with lighter terminal parts. Fig. 3. Straight or curved filament growth forms. Fig. 4. False branching with basal heterocytes. Fig. 5. Trichomes with evident intercalar heterocytes and polar nodules. Fig. 6. Release of short isopolar trichome with evident nodal constrictions. Fig. 7. Series of heteropolar and isopolar hormogones. Fig. 8. Divaricated pseudobranch with basal heterocyte and stratified sheath. Fig. 9. False branching with single and paired heterocytes. Scale bars: Figs 1–3: 30 µm, Figs 4–9: 6µm." figureDoi="http://doi.org/10.5281/zenodo.5086297" httpUri="https://zenodo.org/record/5086297/files/figure.png" pageId="6" pageNumber="41">Figs. 6, 7, 9</figureCitation>
,
<figureCitation id="6AFA7F83FFFCFF985FA1FE5DFDB2FE42" box="[457,532,384,410]" captionStart="FIGURES 17–19" captionStartId="5.[151,258,629,651]" captionTargetBox="[152,1435,286,605]" captionTargetId="figure-263@5.[151,1436,286,615]" captionTargetPageId="5" captionText="FIGURES 17–19. Hassallia littoralis TEM images. Fig. 17. Hormogonia formation through a necridic cell. Fig. 18. Young isopolar hormogonium with a wide stratified sheath. Fig. 19. Evident polar nodule in a basal heterocyte. Scale bars: Fig. 17: 3 µm, Fig. 18: 5 µm, Fig. 19: 1 µm." figureDoi="http://doi.org/10.5281/zenodo.5086301" httpUri="https://zenodo.org/record/5086301/files/figure.png" pageId="6" pageNumber="41">17, 18</figureCitation>
,
<figureCitation id="6AFA7F83FFFCFF985C4AFE5DFDE5FE42" box="[546,579,384,410]" captionStart="FIGURES 20–25" captionStartId="5.[151,258,1668,1690]" captionTargetBox="[160,1413,742,1629]" captionTargetId="figure-272@5.[151,1436,708,1665]" captionTargetPageId="5" captionText="FIGURES 20–25. Hassallia littoralis habitus. Figs 20, 21. Fasciculated growth form. Figs 22, 23. Formation of hormogonia. Fig. 24. Hormogonia and branch formation. Fig. 25. Production of monocyte-like cells. Scale bars: Figs 20, 21: 30 µm, Figs 22–25: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086303" httpUri="https://zenodo.org/record/5086303/files/figure.png" pageId="6" pageNumber="41">22</figureCitation>
). Sheath becomes lighter or darker toward the extremes, probably due to terminal gelatinization (
<figureCitation id="6AFA7F83FFFCFF985FD9FE7BFDCBFE18" box="[433,621,422,448]" captionStart="FIGURES 10–16" captionStartId="4.[151,258,1862,1884]" captionTargetBox="[234,1351,196,1839]" captionTargetId="figure-112@4.[232,1354,191,1841]" captionTargetPageId="4" captionText="FIGURES 10–16. Morphological features of Hassallia littoralis. Fig. 10. Terminal widening of the sheath. Fig. 11. Branched filament with evident cytoplasmic granules. Fig. 12. A trichome with variations in diameter bearing a darker, shortened necridial cell. Fig. 13. Plane view of a cylindrical trichome and filament. Fig. 14. Intense terminal EPS production by highly granulosed trichome with an open sheath. Fig. 15. Darkening of hyaline sheath produced probably by gelatinization. Fig. 16. A trichome of a young filament with necridic cells and sheath widening. Scale bars: 6 µm." figureDoi="http://doi.org/10.5281/zenodo.5086299" httpUri="https://zenodo.org/record/5086299/files/figure.png" pageId="6" pageNumber="41">Figs. 10, 14, 15</figureCitation>
). Populations morphologically characterized are C76 (PTM9586 and UAMIZ1225), C77 (PTM9587) and C78 (PTM9588). The sequence was obtained from sample C76.
</paragraph>
<paragraph id="F27E6306FFFCFF985EAEFE29FD3FFBDC" blockId="6.[151,1436,152,1028]" pageId="6" pageNumber="41">
<emphasis id="C0B5BF14FFFCFF985EAEFE29FD04FDD6" bold="true" box="[198,674,500,526]" pageId="6" pageNumber="41">Molecular and phylogenetic analyses:</emphasis>
—A total of 24 sequences of representative taxa from available sequences of
<taxonomicName id="35C11885FFFCFF985F2BFDC7FDB1FDEC" authorityName="E.J.Lemmermann" authorityYear="1907" box="[323,535,538,564]" class="Cyanophyceae" family="Microchaetaceae" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="family">Microchaetaceae</taxonomicName>
and
<taxonomicName id="35C11885FFFCFF985C30FDC7FC97FDEC" box="[600,817,538,564]" class="Cyanophyceae" family="Scytonemataceae" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="family">Scytonemataceae</taxonomicName>
deposited at GenBank were analyzed, including
<taxonomicName id="35C11885FFFCFF985EFFFD9CFE78FD83" authority="DQ" authorityName="DQ" box="[151,478,577,603]" class="Cyanophyceae" family="Scytonemataceae" genus="Brasilonema" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="bromeliae">
<emphasis id="C0B5BF14FFFCFF985EFFFD9CFE0DFD83" box="[151,427,577,603]" italics="true" pageId="6" pageNumber="41">Brasilonema bromeliae</emphasis>
<accessionNumber id="ED92FEE5FFFCFF985FDBFD9CFE78FD83" box="[435,478,577,603]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/DQ486055" pageId="6" pageNumber="41">DQ</accessionNumber>
</taxonomicName>
486055,
<taxonomicName id="35C11885FFFCFF985C2DFD9CFD48FD83" box="[581,750,577,603]" class="Cyanophyceae" family="Scytonemataceae" genus="Scytonema" higherTaxonomySource="CoL" kingdom="Fungi" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="undetermined">
<emphasis id="C0B5BF14FFFCFF985C2DFD9CFD62FD83" box="[581,708,577,603]" italics="true" pageId="6" pageNumber="41">Scytonema</emphasis>
sp.
</taxonomicName>
<accessionNumber id="ED92FEE5FFFCFF985C9EFD9CFCD0FD83" box="[758,886,577,603]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/AB093483" pageId="6" pageNumber="41">AB093483</accessionNumber>
and
<taxonomicName id="35C11885FFFCFF985DD9FD9CFA82FD83" authority="JN" authorityName="JN" box="[945,1316,577,603]" class="Cyanophyceae" family="Scytonemataceae" genus="Brasilonema" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="tolantongensis">
<emphasis id="C0B5BF14FFFCFF985DD9FD9CFB5CFD83" box="[945,1274,577,603]" italics="true" pageId="6" pageNumber="41">Brasilonema tolantongensis</emphasis>
<accessionNumber id="ED92FEE5FFFCFF985B6BFD9CFA82FD83" box="[1283,1316,577,603]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/JN676147" pageId="6" pageNumber="41">JN</accessionNumber>
</taxonomicName>
676147 as outgroups and our strain. The three approaches used (MP, B and ML), produced similar clustering, therefore only the ML tree, with support values of ML, B and MP is shown in
<figureCitation id="6AFA7F83FFFCFF985DD2FD53FBB6FD70" box="[954,1040,654,680]" captionStart="FIGURE 26" captionStartId="9.[151,244,1895,1917]" captionTargetBox="[306,1294,731,1856]" captionTargetId="figure-307@9.[287,1308,711,1878]" captionTargetPageId="9" captionText="FIGURE 26. Maximum-likelihood tree based on the analysis of 16S rRNA gene of representatives of the families Scytonemataceae and Microchaetaceae showing the position of the sequence obtained in the present study (in bold). Numbers at nodes indicate bootstrap values ≥ 50% for Maximum Parsimony (left), Maximum Likelihood analysis (medium) and Bayesian posterior probabilities (right) values." figureDoi="http://doi.org/10.5281/zenodo.5086305" httpUri="https://zenodo.org/record/5086305/files/figure.png" pageId="6" pageNumber="41">Fig. 26</figureCitation>
. Topology of the ML tree showed that the
<taxonomicName id="35C11885FFFCFF985E94FD68FED7FD17" box="[252,369,693,719]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="genus">
<emphasis id="C0B5BF14FFFCFF985E94FD68FED7FD17" box="[252,369,693,719]" italics="true" pageId="6" pageNumber="41">Hassallia</emphasis>
</taxonomicName>
assemblages including seven taxa are segregated into two clades supported by modest bootstrap values. The earliest diverging clade included
<taxonomicName id="35C11885FFFCFF985D5BFD01FC68FD2E" authorityName="Hassall" authorityYear="1845" box="[819,974,732,758]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="byssoidea">
<emphasis id="C0B5BF14FFFCFF985D5BFD01FC68FD2E" box="[819,974,732,758]" italics="true" pageId="6" pageNumber="41">H. byssoidea</emphasis>
</taxonomicName>
. The second clade included two sister groups: one defined by
<taxonomicName id="35C11885FFFCFF985FC3FCDFFBE4FCC4" authority="Komarek, Nedbalova et Hauer (2012: 770)" authorityName="Komarek, Nedbalova et Hauer" authorityPageNumber="770" authorityYear="2012" box="[427,1090,770,796]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="antarctica">
<emphasis id="C0B5BF14FFFCFF985FC3FCDFFDE3FCC4" box="[427,581,770,796]" italics="true" pageId="6" pageNumber="41">H. antarctica</emphasis>
<bibRefCitation id="96501EF7FFFCFF985C24FCDFFBE4FCC4" author="Komarek, J. &amp; Nedbalova, L. &amp; Hauer, T." box="[588,1090,770,796]" pageId="6" pageNumber="41" pagination="759 - 774" refId="ref7583" refString="Komarek, J., Nedbalova, L. &amp; Hauer, T. (2012) Phylogenetic position and taxonomy of three heterocytous cyanobacteria dominating the littoral of deglaciated lakes, James Ross Island, Antarctica. Polar Biology 35: 759 - 774. http: // dx. doi. org / 10.1007 / s 00300 - 011 - 1123 - x" type="journal article" year="2012">
Komárek, Nedbalová
<emphasis id="C0B5BF14FFFCFF985D26FCDFFCC5FCC4" box="[846,867,770,796]" italics="true" pageId="6" pageNumber="41">et</emphasis>
Hauer (2012: 770)
</bibRefCitation>
</taxonomicName>
assemblage, and the other by
<emphasis id="C0B5BF14FFFCFF985EFFFCF4FE8DFC9B" box="[151,299,809,835]" italics="true" pageId="6" pageNumber="41">
<taxonomicName id="35C11885FFFCFF985EFFFCF4FE80FC9B" box="[151,294,809,835]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="littoralis">H. littoralis</taxonomicName>
,
</emphasis>
<taxonomicName id="35C11885FFFCFF985F5CFCF4FC5BFC9B" authority="Komarek, Nedbalova et Hauer (2012: 768)" authorityName="Komarek, Nedbalova et Hauer" authorityPageNumber="768" authorityYear="2012" box="[308,1021,809,835]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="andreassenii">
<emphasis id="C0B5BF14FFFCFF985F5CFCF4FE56FC9B" box="[308,496,809,835]" italics="true" pageId="6" pageNumber="41">H. andreassenii</emphasis>
<bibRefCitation id="96501EF7FFFCFF985F91FCF4FC5BFC9B" author="Komarek, J. &amp; Nedbalova, L. &amp; Hauer, T." box="[505,1021,809,835]" pageId="6" pageNumber="41" pagination="759 - 774" refId="ref7583" refString="Komarek, J., Nedbalova, L. &amp; Hauer, T. (2012) Phylogenetic position and taxonomy of three heterocytous cyanobacteria dominating the littoral of deglaciated lakes, James Ross Island, Antarctica. Polar Biology 35: 759 - 774. http: // dx. doi. org / 10.1007 / s 00300 - 011 - 1123 - x" type="journal article" year="2012">
Komárek, Nedbalová
<emphasis id="C0B5BF14FFFCFF985D69FCF4FCB0FC9B" box="[769,790,809,835]" italics="true" pageId="6" pageNumber="41">et</emphasis>
Hauer (2012: 768)
</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="35C11885FFFCFF985A51FCF4FAB3FC9B" box="[1081,1301,809,835]" class="Cyanophyceae" family="Scytonemataceae" genus="Coleodesmium" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="undetermined">
<emphasis id="C0B5BF14FFFCFF985A51FCF4FB4CFC9B" box="[1081,1258,809,835]" italics="true" pageId="6" pageNumber="41">Coleodesmium</emphasis>
sp.
</taxonomicName>
ANT (
<figureCitation id="6AFA7F83FFFCFF985B03FCF4FF1FFCB2" captionStart="FIGURE 26" captionStartId="9.[151,244,1895,1917]" captionTargetBox="[306,1294,731,1856]" captionTargetId="figure-307@9.[287,1308,711,1878]" captionTargetPageId="9" captionText="FIGURE 26. Maximum-likelihood tree based on the analysis of 16S rRNA gene of representatives of the families Scytonemataceae and Microchaetaceae showing the position of the sequence obtained in the present study (in bold). Numbers at nodes indicate bootstrap values ≥ 50% for Maximum Parsimony (left), Maximum Likelihood analysis (medium) and Bayesian posterior probabilities (right) values." figureDoi="http://doi.org/10.5281/zenodo.5086305" httpUri="https://zenodo.org/record/5086305/files/figure.png" pageId="6" pageNumber="41">Fig. 26</figureCitation>
).
<taxonomicName id="35C11885FFFCFF985EA7FC8DFE14FCB2" box="[207,434,848,874]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="littoralis">
<emphasis id="C0B5BF14FFFCFF985EA7FC8DFE14FCB2" box="[207,434,848,874]" italics="true" pageId="6" pageNumber="41">Hassallia littoralis</emphasis>
</taxonomicName>
is moderately supported by bootstrap values in ML and MP topologies, but with a higher value in Bayesian analysis (0.97), forming a distinct sister clade to
<taxonomicName id="35C11885FFFCFF985D94FCABFB13FC48" authorityName="Komarek, Nedbalova et Hauer" authorityYear="2012" box="[1020,1205,886,912]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="andreassenii">
<emphasis id="C0B5BF14FFFCFF985D94FCABFB13FC48" box="[1020,1205,886,912]" italics="true" pageId="6" pageNumber="41">H. andreassenii</emphasis>
</taxonomicName>
and
<taxonomicName id="35C11885FFFCFF985A86FCABFF1EFC6F" class="Cyanophyceae" family="Scytonemataceae" genus="Coleodesmium" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="undetermined">
<emphasis id="C0B5BF14FFFCFF985A86FCABFA3AFC48" box="[1262,1436,886,912]" italics="true" pageId="6" pageNumber="41">Coleodesmium</emphasis>
sp.
</taxonomicName>
ANT. Molecular data confirmed the distinctiveness of our tropical populations that show similarity values of 98.4% with
<taxonomicName id="35C11885FFFCFF985F2DFC19FE5BFC06" authorityName="Komarek, Nedbalova et Hauer" authorityYear="2012" box="[325,509,964,990]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="andreassenii">
<emphasis id="C0B5BF14FFFCFF985F2DFC19FE5BFC06" box="[325,509,964,990]" italics="true" pageId="6" pageNumber="41">H. andreassenii</emphasis>
</taxonomicName>
, 97.8-98.1% with the
<taxonomicName id="35C11885FFFCFF985D6CFC19FC06FC06" authorityName="Komarek, Nedbalova et Hauer" authorityYear="2012" box="[772,928,964,990]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="antarctica">
<emphasis id="C0B5BF14FFFCFF985D6CFC19FC06FC06" box="[772,928,964,990]" italics="true" pageId="6" pageNumber="41">H. antarctica</emphasis>
</taxonomicName>
assemblage, 97.8% with
<taxonomicName id="35C11885FFFCFF985AA3FC19FAC4FC06" authorityName="Hassall" authorityYear="1845" box="[1227,1378,964,990]" class="Cyanophyceae" family="Microchaetaceae" genus="Hassallia" higherTaxonomySource="GBIF" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="byssoidea">
<emphasis id="C0B5BF14FFFCFF985AA3FC19FAC4FC06" box="[1227,1378,964,990]" italics="true" pageId="6" pageNumber="41">H. byssoidea</emphasis>
</taxonomicName>
, and finally 98.5% with
<taxonomicName id="35C11885FFFCFF985F11FC37FDF6FBDC" box="[377,592,1002,1028]" class="Cyanophyceae" family="Scytonemataceae" genus="Coleodesmium" kingdom="Bacteria" order="Nostocales" pageId="6" pageNumber="41" phylum="Cyanobacteria" rank="species" species="undetermined">
<emphasis id="C0B5BF14FFFCFF985F11FC37FD81FBDC" box="[377,551,1002,1028]" italics="true" pageId="6" pageNumber="41">Coleodesmium</emphasis>
sp.
</taxonomicName>
ANT.
</paragraph>
</subSubSection>
</treatment>
</document>
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