286 lines
36 KiB
XML
286 lines
36 KiB
XML
<document id="242537BC1339809522A9D1BD4B8F8ED5" ID-CLB-Dataset="207914" ID-DOI="10.11646/phytotaxa.575.3.1" ID-GBIF-Dataset="9921851b-40b9-4dba-aaa7-e7c5975b77cf" ID-ISSN="1179-3163" ID-Zenodo-Dep="7431242" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1670915127192" checkinUser="plazi" docAuthor="Costa, Lívia F., Wetzel, Carlos E., Maquardt, Gisele C., Zanon, Jaques E., Ector, Luc & Bicudo, Denise C." docDate="2022" docId="0399343DFF8EFFD476ACBA5FFE73F7D7" docLanguage="en" docName="phytotaxa.575.3.1.pdf" docOrigin="Phytotaxa 575 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.575.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Achnanthidium lusitanicum Novais & M. Morais" docType="treatment" docVersion="7" lastPageNumber="200" masterDocId="FFA04C45FF85FFD97624BD1DFF97FFF6" masterDocTitle="Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species" masterLastPageNumber="223" masterPageNumber="187" pageNumber="198" updateTime="1699413381687" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="6DE29A2CC89210A94DD8EAE71BD9327C">Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species</mods:title>
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<mods:namePart id="F7B6AE7F1D650EAF1C00B39D70372B6E">Costa, Lívia F.</mods:namePart>
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<mods:affiliation id="D1C739718A605EEB31362E3A5AA9FF82">Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & livia. fcosta @ hotmail. com; https: // orcid. org / 0000 - 0001 - 7148 - 9964</mods:affiliation>
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<mods:nameIdentifier id="055D1038DAF5981333969EFEE9FD8D9A" type="email">livia.fcosta@hotmail.com</mods:nameIdentifier>
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<mods:namePart id="5095F439CBB7878CE5277ECDE773E1CA">Wetzel, Carlos E.</mods:namePart>
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<mods:affiliation id="2938050D71E4087AB6F05C1B18A4F8CB">Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & carlos. wetzel @ list. lu; https: // orcid. org / 0000 - 0001 - 5330 - 0494</mods:affiliation>
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<mods:namePart id="69D9F6829A2A57F2420E43A0DDB8C04D">Maquardt, Gisele C.</mods:namePart>
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<mods:affiliation id="560C18E825AB41E6C5B782449BC46BBC">Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & Universidade Guarulhos, Centro de Pós-Graduação, Pesquisa e Extensão CEPPE, Praça Tereza Cristina 88, 07023070 Guarulhos, SP, Brazil. & giselecmarquardt @ gmail. com; https: // orcid. org / 0000 - 0002 - 2721 - 1487</mods:affiliation>
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<mods:nameIdentifier id="9B33CD9CC27720F46EC63833D091F666" type="email">giselecmarquardt@gmail.com</mods:nameIdentifier>
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<mods:namePart id="00E31E611D2D4BDD3D400B8544206FD8">Zanon, Jaques E.</mods:namePart>
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<mods:affiliation id="1730AA923B1C0C09C4217F2AD5802CD8">Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & jaques. zanon @ gmail. com; https: // orcid. org / 0000 - 0002 - 9619 - 4393</mods:affiliation>
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<mods:nameIdentifier id="ED3EDD824F4ECA39F48B2E5A3953D8B2" type="email">jaques.zanon@gmail.com</mods:nameIdentifier>
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<mods:namePart id="A09C1AEAC01B44404EFAE27D129A1D5F">Ector, Luc</mods:namePart>
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<mods:affiliation id="C16B0976D5B83681B2DF50FD5496D1A1">Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & https: // orcid. org / 0000 - 0002 - 4573 - 9445</mods:affiliation>
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<mods:namePart id="8B7DBFC0742C46230B3A9FAE49153A13">Bicudo, Denise C.</mods:namePart>
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<mods:nameIdentifier id="FFB2D0500603F4CE5EB51B369C63858D" type="ORCID">0000-0002-4248-3261</mods:nameIdentifier>
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<mods:affiliation id="1AAC8A70F52138B445F95938A68E61F5">Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & denisecbicudo @ gmail. com; https: // orcid. org / 0000 - 0002 - 4248 - 3261</mods:affiliation>
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<mods:nameIdentifier id="5799EFF54562D048BA84F42D9E728CF1" type="email">denisecbicudo@gmail.com</mods:nameIdentifier>
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<mods:title id="97D0F3BA2DF524CA74388F6FF3CE0AE2">Phytotaxa</mods:title>
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<mods:date id="1DA22A76EB2D9C85B03F55A41A46590D">2022</mods:date>
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<mods:number id="2C5989932882A3263AB6B901E7718B22">2022-12-13</mods:number>
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<mods:number id="8BD97511E40AE0961C648968268739A6">575</mods:number>
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<mods:start id="BBEAD4D7A79FED7CDD83536519D82883">187</mods:start>
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<treatment id="0399343DFF8EFFD476ACBA5FFE73F7D7" ID-DOI="http://doi.org/10.5281/zenodo.7434730" ID-GBIF-Taxon="206232874" ID-Zenodo-Dep="7434730" LSID="urn:lsid:plazi:treatment:0399343DFF8EFFD476ACBA5FFE73F7D7" httpUri="http://treatment.plazi.org/id/0399343DFF8EFFD476ACBA5FFE73F7D7" lastPageId="13" lastPageNumber="200" pageId="11" pageNumber="198">
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<subSubSection id="C32AD6A0FF8EFFD276ACBA5FFB1CF8AB" box="[136,1163,1858,1885]" pageId="11" pageNumber="198" type="nomenclature">
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<paragraph id="8B8F852BFF8EFFD276ACBA5FFB1CF8AB" blockId="11.[136,1163,1858,1885]" box="[136,1163,1858,1885]" pageId="11" pageNumber="198">
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<heading id="D0C73247FF8EFFD276ACBA5FFB1CF8AB" box="[136,1163,1858,1885]" fontSize="11" level="2" pageId="11" pageNumber="198" reason="3">
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<taxonomicName id="4C30FEA8FF8EFFD276ACBA5FFD20F8AA" authority="Novais & M. Morais" authorityName="Novais & M. Morais" box="[136,695,1858,1885]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="11" pageNumber="198" phylum="Bacillariophyta" rank="species" species="lusitanicum">
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<emphasis id="B9445939FF8EFFD276ACBA5FFE59F8AB" bold="true" box="[136,462,1858,1885]" italics="true" pageId="11" pageNumber="198">Achnanthidium lusitanicum</emphasis>
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Novais & M.Morais
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</taxonomicName>
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in
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<treatmentCitation id="0A91A33AFF8EFFD274FFBA5FFC63F8AA" author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[731,1012,1858,1885]" page="129" pageId="11" pageNumber="198" year="2015">
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<bibRefCitation id="EFA1F8DAFF8EFFD274FFBA5FFC63F8AA" author="Novais, M. H. & Juttner, I. & Van de Vijver, B. & Morais, M. M. & Hoffmann, L. & Ector, L." box="[731,1012,1858,1885]" pageId="11" pageNumber="198" pagination="101 - 139" refId="ref23506" refString="Novais, M. H., Juttner, I., Van de Vijver, B., Morais, M. M., Hoffmann, L. & Ector, L. (2015) Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal. Phytotaxa 224 (2): 101 - 139. https: // doi. org / 10.11646 / phytotaxa. 224.2.1" type="journal article" year="2015">
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Novais
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<emphasis id="B9445939FF8EFFD27516BA5EFCFDF8AA" box="[818,874,1858,1884]" italics="true" pageId="11" pageNumber="198">et al.</emphasis>
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(2015: 129)
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</bibRefCitation>
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</treatmentCitation>
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(
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<figureCitation id="130B99AEFF8EFFD27227BA5FFB14F8AB" box="[1027,1155,1858,1885]" captionStart-0="FIGURES 45–71" captionStart-1="FIGURES 72–99" captionStartId-0="12.[136,243,1718,1740]" captionStartId-1="13.[136,243,1741,1763]" captionTargetBox-0="[286,1305,421,1691]" captionTargetBox-1="[217,1375,410,1713]" captionTargetId-0="figure-123@12.[276,1311,421,1695]" captionTargetId-1="figure-144@13.[206,1382,410,1716]" captionTargetPageId-0="12" captionTargetPageId-1="13" captionText-0="FIGURES 45–71. LM and SEM images of Achnanthidium lusitanicum from Garças Lake, São Paulo state (SP-469485). 45–56.LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." captionText-1="FIGURES 72–99. LM and SEM images of Achnanthidium lusitanicum from Guarapiranga reservoir, São Paulo state (SP-428513). 72–83. LM views of raphe valves. 84–95. LM views of rapheless valves. 96, 97. SEM external view of raphe valves showing striation pattern, axial and central areas. 98. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 99. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi-0="http://doi.org/10.5281/zenodo.7431254" figureDoi-1="http://doi.org/10.5281/zenodo.7431258" httpUri-0="https://zenodo.org/record/7431254/files/figure.png" httpUri-1="https://zenodo.org/record/7431258/files/figure.png" pageId="11" pageNumber="198">Figs 45–99</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C32AD6A0FF8EFFD276ACBA95FE85F830" pageId="11" pageNumber="198" type="description">
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<paragraph id="8B8F852BFF8EFFD276ACBA95FE85F830" blockId="11.[136,1452,1928,2061]" pageId="11" pageNumber="198">
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<emphasis id="B9445939FF8EFFD276ACBA95FE51F854" bold="true" box="[136,454,1928,1954]" pageId="11" pageNumber="198">Morphometric features:—</emphasis>
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6.5–16.5 µm long; 2.6–3.4 µm wide; 30–34 striae in 10 µm; striae mainly composed of 4–6 areolae.
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</paragraph>
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</subSubSection>
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<subSubSection id="C32AD6A0FF8EFFD47699BAD2FB4BFE66" lastPageId="13" lastPageNumber="200" pageId="11" pageNumber="198" type="discussion">
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<paragraph id="8B8F852BFF8EFFD57699BAD2FF63FF09" blockId="11.[136,1452,1928,2061]" lastBlockId="12.[136,1452,158,361]" lastPageId="12" lastPageNumber="199" pageId="11" pageNumber="198">
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<emphasis id="B9445939FF8EFFD27699BAD2FE7AF81F" bold="true" box="[189,493,1999,2025]" pageId="11" pageNumber="198">Taxonomical remarks:—</emphasis>
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<taxonomicName id="4C30FEA8FF8EFFD277C9BAD2FCBFF81F" box="[493,808,1999,2025]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="11" pageNumber="198" phylum="Bacillariophyta" rank="species" species="lusitanicum">
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<emphasis id="B9445939FF8EFFD277C9BAD2FCBFF81F" box="[493,808,1999,2025]" italics="true" pageId="11" pageNumber="198">Achnanthidium lusitanicum</emphasis>
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</taxonomicName>
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shares morphological similarities with
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<taxonomicName id="4C30FEA8FF8EFFD272DBBAD2FD17F7FA" authority="(Lange-Bertalot) Lange-Bertalot (1999: 271)" authorityName="Lange-Bertalot" authorityPageNumber="271" authorityYear="1999" baseAuthorityName="Lange-Bertalot" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="11" pageNumber="198" phylum="Bacillariophyta" rank="species" species="eutrophilum">
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<emphasis id="B9445939FF8EFFD272DBBAD2FA3BF81F" box="[1279,1452,1999,2025]" italics="true" pageId="11" pageNumber="198">A. eutrophilum</emphasis>
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(Lange-Bertalot)
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<bibRefCitation id="EFA1F8DAFF8EFFD27768BAEFFD17F7FA" author="Lange-Bertalot, H." box="[332,640,2034,2060]" pageId="11" pageNumber="198" refId="ref22244" refString="Lange-Bertalot, H. (1999) Neue Kombinationen von Taxa aus Achnanthes Bory (sensu lato). In: Lange-Bertalot, H. (Ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 6. Phytogeography - Diversity - Taxonomy. Koeltz Scientific Books, Konigstein, Germany, pp. 276 - 289." type="book" year="1999">Lange-Bertalot (1999: 271)</bibRefCitation>
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</taxonomicName>
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but our species has slender valves narrower than the latter taxon, which has rhombic-lanceolate to rhombic-elliptical frustules in small specimens and valve apices bluntly rounded to cuneate. Also,
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<taxonomicName id="4C30FEA8FF89FFD576EFBDDFFEF9FF2D" box="[203,366,193,220]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="lusitanicum">
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<emphasis id="B9445939FF89FFD576EFBDDFFEF9FF2D" box="[203,366,193,220]" italics="true" pageId="12" pageNumber="199">A. lusitanicum</emphasis>
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</taxonomicName>
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have a higher stria density (
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<taxonomicName id="4C30FEA8FF89FFD57489BDDFFCC3FF2D" authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[685,852,193,220]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="eutrophilum">
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<emphasis id="B9445939FF89FFD57489BDDFFCC3FF2D" box="[685,852,193,220]" italics="true" pageId="12" pageNumber="199">A. eutrophilum</emphasis>
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</taxonomicName>
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: 3.2–5.8 µm wide, striae 25–30/10 µm,
|
||
<bibRefCitation id="EFA1F8DAFF89FFD5733EBDDCFF7FFF09" author="Hlubikova, D. & Ector, L. & Hoffmann, L." pageId="12" pageNumber="199" pagination="19 - 43" refId="ref21257" refString="Hlubikova, D., Ector, L. & Hoffmann, L. (2011) Examination of the type material of some diatom species related to Achnanthidium minutissimum (Kutz.) Czarn. (Bacillariophyceae). Algological Studies 136 / 137: 19 - 43. https: // doi. org / 10.1127 / 1864 - 1318 / 2011 / 0136 - 0019" type="journal article" year="2011">
|
||
Hlúbiková
|
||
<emphasis id="B9445939FF89FFD573B3BDDFFF32FF09" italics="true" pageId="12" pageNumber="199">et al.</emphasis>
|
||
2011
|
||
</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8B8F852BFF89FFD57699BC15FA1AFE9E" blockId="12.[136,1452,158,361]" pageId="12" pageNumber="199">
|
||
<taxonomicName id="4C30FEA8FF89FFD57699BC15FD32FED4" authority="Novais & Ector" authorityName="Novais & Ector" box="[189,677,264,290]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="caravelense">
|
||
<emphasis id="B9445939FF89FFD57699BC15FE63FED4" box="[189,500,264,290]" italics="true" pageId="12" pageNumber="199">Achnanthidium caravelense</emphasis>
|
||
Novais & Ector
|
||
</taxonomicName>
|
||
(in
|
||
<bibRefCitation id="EFA1F8DAFF89FFD574EABC15FC5AFED4" author="Novais, M. H. & Hlubikova, D. & Morais, M. & Hoffmann, L. & Ector, L." box="[718,973,264,290]" pageId="12" pageNumber="199" pagination="131 - 150" refId="ref23432" refString="Novais, M. H., Hlubikova, D., Morais, M., Hoffmann, L. & Ector, L. (2011) Morphology and ecology of Achnanthidium caravelense (Bacillariophyceae), a new species from Portuguese rivers. Algological Studies 136 - 137: 131 - 150. https: // doi. org / 10.1127 / 1864 - 1318 / 2011 / 0136 - 0131" type="journal article" year="2011">
|
||
Novais
|
||
<emphasis id="B9445939FF89FFD57507BC14FCCEFED4" box="[803,857,264,290]" italics="true" pageId="12" pageNumber="199">et al.</emphasis>
|
||
2011: 142
|
||
</bibRefCitation>
|
||
) is similar to
|
||
<taxonomicName id="4C30FEA8FF89FFD57245BC15FA96FED4" box="[1121,1281,264,290]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF89FFD57245BC15FA96FED4" box="[1121,1281,264,290]" italics="true" pageId="12" pageNumber="199">A. lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
when analyzed by LM and SEM. However, it differs from
|
||
<taxonomicName id="4C30FEA8FF89FFD57444BC36FC96FEB3" box="[608,769,299,325]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF89FFD57444BC36FC96FEB3" box="[608,769,299,325]" italics="true" pageId="12" pageNumber="199">A. lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
mainly by the elliptic raphe valve with almost linear margins. The SEM images show that
|
||
<taxonomicName id="4C30FEA8FF89FFD577E1BC52FDFDFE9E" box="[453,618,334,361]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="caravelense">
|
||
<emphasis id="B9445939FF89FFD577E1BC52FDFDFE9E" box="[453,618,334,361]" italics="true" pageId="12" pageNumber="199">A. caravelense</emphasis>
|
||
</taxonomicName>
|
||
presents a lower number of areolae per striae (3–4,
|
||
<bibRefCitation id="EFA1F8DAFF89FFD57294BC53FA16FE9E" author="Novais, M. H. & Hlubikova, D. & Morais, M. & Hoffmann, L. & Ector, L." box="[1200,1409,334,360]" pageId="12" pageNumber="199" pagination="131 - 150" refId="ref23432" refString="Novais, M. H., Hlubikova, D., Morais, M., Hoffmann, L. & Ector, L. (2011) Morphology and ecology of Achnanthidium caravelense (Bacillariophyceae), a new species from Portuguese rivers. Algological Studies 136 - 137: 131 - 150. https: // doi. org / 10.1127 / 1864 - 1318 / 2011 / 0136 - 0131" type="journal article" year="2011">
|
||
Novais
|
||
<emphasis id="B9445939FF89FFD57322BC52FAA9FE9E" box="[1286,1342,334,360]" italics="true" pageId="12" pageNumber="199">et al.</emphasis>
|
||
2011
|
||
</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="DF4FD5A3FF89FFD576ACBBABFAC0F8CF" ID-DOI="http://doi.org/10.5281/zenodo.7431254" ID-Zenodo-Dep="7431254" httpUri="https://zenodo.org/record/7431254/files/figure.png" pageId="12" pageNumber="199" startId="12.[136,243,1718,1740]" targetBox="[286,1305,421,1691]" targetPageId="12">
|
||
<paragraph id="8B8F852BFF89FFD576ACBBABFAC0F8CF" blockId="12.[136,1452,1718,1849]" pageId="12" pageNumber="199">
|
||
<emphasis id="B9445939FF89FFD576ACBBABFEAEF93D" bold="true" box="[136,313,1718,1740]" pageId="12" pageNumber="199">FIGURES 45–71.</emphasis>
|
||
LM and SEM images of
|
||
<taxonomicName id="4C30FEA8FF89FFD57403BBAAFCB9F93A" box="[551,814,1719,1740]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF89FFD57403BBAAFCB9F93A" box="[551,814,1719,1740]" italics="true" pageId="12" pageNumber="199">Achnanthidium lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
from Garças Lake, São Paulo state (SP-469485). 45–56. LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8B8F852BFF89FFD57699BA7AFC4FF7E7" blockId="12.[136,1452,1895,2066]" pageId="12" pageNumber="199">
|
||
The valve outline of
|
||
<taxonomicName id="4C30FEA8FF89FFD57793BA7AFB23F877" authority="Gassiole, Le Cohu & M. Coste (2013: 22)" authorityName="Gassiole, Le Cohu & M. Coste" authorityPageNumber="22" authorityYear="2013" box="[439,1204,1895,1922]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="palmeti">
|
||
<emphasis id="B9445939FF89FFD57793BA7AFD56F877" box="[439,705,1895,1921]" italics="true" pageId="12" pageNumber="199">Achnanthidium palmeti</emphasis>
|
||
Gassiole, Le Cohu & M.Coste (2013: 22)
|
||
</taxonomicName>
|
||
is very similar to
|
||
<taxonomicName id="4C30FEA8FF89FFD573B7BA7AFE9CF853" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF89FFD573B7BA7AFE9CF853" italics="true" pageId="12" pageNumber="199">A. lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
, and the cell metrics overlap. However, some
|
||
<taxonomicName id="4C30FEA8FF89FFD57504BA96FC02F853" authorityName="Gassiole, Le Cohu & M. Coste" authorityYear="2013" box="[800,917,1931,1957]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="palmeti">
|
||
<emphasis id="B9445939FF89FFD57504BA96FC02F853" box="[800,917,1931,1957]" italics="true" pageId="12" pageNumber="199">A. palmeti</emphasis>
|
||
</taxonomicName>
|
||
specimens have slightly wider valves (2.7–4.6 μm,
|
||
<bibRefCitation id="EFA1F8DAFF89FFD5769ABAB2FE3AF83F" author="Gassiole, G. & Le Cohu, R. & Coste, M." box="[190,429,1967,1993]" pageId="12" pageNumber="199" pagination="21 - 32" refId="ref21119" refString="Gassiole, G., Le Cohu, R. & Coste, M. (2013) Achnanthidium palmeti (Bacillariophyta, Achnanthidiaceae), a new freshwater species from Reunion Island. Phytotaxa 119 (1): 21 - 32. https: // doi. org / 10.11646 / phytotaxa. 119.1.2" type="journal article" year="2013">
|
||
Gassiole
|
||
<emphasis id="B9445939FF89FFD5770DBAADFEF2F83F" box="[297,357,1967,1993]" italics="true" pageId="12" pageNumber="199">et al.</emphasis>
|
||
2013
|
||
</bibRefCitation>
|
||
). The main character differing both species is the frustules that are arched with slightly recurved apices in
|
||
<taxonomicName id="4C30FEA8FF89FFD5777ABACEFE45F81B" authorityName="Gassiole, Le Cohu & M. Coste" authorityYear="2013" box="[350,466,2003,2029]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="12" pageNumber="199" phylum="Bacillariophyta" rank="species" species="palmeti">
|
||
<emphasis id="B9445939FF89FFD5777ABACEFE45F81B" box="[350,466,2003,2029]" italics="true" pageId="12" pageNumber="199">A. palmeti</emphasis>
|
||
</taxonomicName>
|
||
and its terminal raphe fissures of the raphid valve are deflected towards the same side. Indeed, our species has straight raphe fissures and an almost flat valve face.
|
||
</paragraph>
|
||
<paragraph id="8B8F852BFF88FFD47699BD82FB4BFE66" blockId="13.[136,1452,158,401]" pageId="13" pageNumber="200">
|
||
In
|
||
<collectingRegion id="49F44BC9FF88FFD476FABD83FE07FF4F" box="[222,400,158,185]" country="Brazil" name="Sao Paulo" pageId="13" pageNumber="200">São Paulo state</collectingRegion>
|
||
,
|
||
<taxonomicName id="4C30FEA8FF88FFD477B9BD83FA3BFF4E" authority="(H. Kobayasi & Mayama) Round & Bukhtiyarova (1996: 349)" authorityName="Round & Bukhtiyarova" authorityPageNumber="349" authorityYear="1996" baseAuthorityName="H. Kobayashi & Mayama" baseAuthorityYear="1982" box="[413,1452,158,184]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="saprophilum">
|
||
<emphasis id="B9445939FF88FFD477B9BD83FD49FF4E" box="[413,734,158,184]" italics="true" pageId="13" pageNumber="200">Achnanthidium saprophilum</emphasis>
|
||
(H.Kobayasi & Mayama)
|
||
<bibRefCitation id="EFA1F8DAFF88FFD47236BD83FA3BFF4E" author="Bukhtiyarova, L. & Round, F. E." box="[1042,1452,158,184]" pageId="13" pageNumber="200" pagination="1 - 30" refId="ref20481" refString="Bukhtiyarova, L. & Round, F. E. (1996) Revision of the genus Achnanthes sensu lato. Psammothidium, a new genus based on A. marginulatum. Diatom Research 11: 1 - 30. https: // doi. org / 10.1080 / 0269249 X. 1996.9705361" type="journal article" year="1996">Round & Bukhtiyarova (1996: 349)</bibRefCitation>
|
||
</taxonomicName>
|
||
shows valves with no inflation in the central portion as
|
||
<taxonomicName id="4C30FEA8FF88FFD474D3BDDEFC0DFF2A" box="[759,922,194,221]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF88FFD474D3BDDEFC0DFF2A" box="[759,922,194,221]" italics="true" pageId="13" pageNumber="200">A. lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
, and it also presents lower stria density (
|
||
<quantity id="4CC828CEFF88FFD47340BDDFFF09FEF6" metricMagnitude="-1" metricUnit="m" metricValue="7.112" metricValueMax="7.62" metricValueMin="6.604" pageId="13" pageNumber="200" unit="in" value="28.0" valueMax="30.0" valueMin="26.0">26–30 in</quantity>
|
||
10 μm). Besides that,
|
||
<taxonomicName id="4C30FEA8FF88FFD47784BDFAFDDAFEF6" authorityName="Round & Bukhtiyarova" authorityYear="1996" baseAuthorityName="H. Kobayashi & Mayama" baseAuthorityYear="1982" box="[416,589,230,257]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="saprophilum">
|
||
<emphasis id="B9445939FF88FFD47784BDFAFDDAFEF6" box="[416,589,230,257]" italics="true" pageId="13" pageNumber="200">A. saprophilum</emphasis>
|
||
</taxonomicName>
|
||
showed presence of areolae with different shapes, a feature not observed in
|
||
<emphasis id="B9445939FF88FFD476ACBC16FEA5FED2" box="[136,306,266,293]" italics="true" pageId="13" pageNumber="200">
|
||
<taxonomicName id="4C30FEA8FF88FFD476ACBC16FEB9FED2" box="[136,302,266,293]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="lusitanicum">A. lusitanicum</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
In addition, a similar Brazilian population was cited as
|
||
<taxonomicName id="4C30FEA8FF88FFD47589BC16FB9CFED2" authorityName="Rabenhorst (1861:" authorityYear="1003" box="[941,1035,266,293]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="jackii">
|
||
<emphasis id="B9445939FF88FFD47589BC16FB9CFED2" box="[941,1035,266,293]" italics="true" pageId="13" pageNumber="200">A. jackii</emphasis>
|
||
</taxonomicName>
|
||
by
|
||
<bibRefCitation id="EFA1F8DAFF88FFD47213BC17FAA4FED2" author="Bartozek, E. C. & Zorzal-Almeida, S. & Bicudo, D. C." box="[1079,1331,266,292]" pageId="13" pageNumber="200" pagination="69 - 92" refId="ref19890" refString="Bartozek, E. C. R, Zorzal-Almeida, S. & Bicudo, D. C. (2018) Surface sediment and phytoplankton diatoms across a trophic gradient in tropical reservoirs: new records for Brazil and Sao Paulo State. Hoehnea 45 (1): 69 - 92. https: // doi. org / 10.1590 / 2236 - 8906 - 51 / 2017" type="journal article" year="2018">
|
||
Bartozek
|
||
<emphasis id="B9445939FF88FFD47280BC16FB49FED2" box="[1188,1246,266,292]" italics="true" pageId="13" pageNumber="200">et al.</emphasis>
|
||
(2018)
|
||
</bibRefCitation>
|
||
. However, the cited species had linear-lanceolate valves with broadly rounded and rostrate apices, a central area always forming a fascia and lower stria density (28–30/10 µm,
|
||
<bibRefCitation id="EFA1F8DAFF88FFD474B8BC4EFC2BFE9A" author="Van de Vijver, B. & Wetzel, C. E. & Ector, L." box="[668,956,338,365]" pageId="13" pageNumber="200" pagination="1 - 4" refId="ref25319" refString="Van de Vijver, B., Wetzel, C. E. & Ector, L. (2018) Analysis of the type material of Achnanthidium jackii Rabenhorst (Bacillariophyta, Achnanthidiaceae). Notulae Algarum 55: 1 - 4." type="journal article" year="2018">
|
||
Van de Vijver
|
||
<emphasis id="B9445939FF88FFD4751ABC4EFCE0FE9A" box="[830,887,338,364]" italics="true" pageId="13" pageNumber="200">et al.</emphasis>
|
||
2018
|
||
</bibRefCitation>
|
||
). Notably, the central area of
|
||
<taxonomicName id="4C30FEA8FF88FFD4732DBC4EFA3BFE9A" box="[1289,1452,338,365]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF88FFD4732DBC4EFA3BFE9A" box="[1289,1452,338,365]" italics="true" pageId="13" pageNumber="200">A. lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
rarely produces a unilateral fascia, being often absent or small rounded with some shortened striae.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="DF4FD5A3FF88FFD476ACBBD0FC68F8B9" ID-DOI="http://doi.org/10.5281/zenodo.7431258" ID-Zenodo-Dep="7431258" httpUri="https://zenodo.org/record/7431258/files/figure.png" pageId="13" pageNumber="200" startId="13.[136,243,1741,1763]" targetBox="[217,1375,410,1713]" targetPageId="13">
|
||
<paragraph id="8B8F852BFF88FFD476ACBBD0FC68F8B9" blockId="13.[136,1452,1741,1871]" pageId="13" pageNumber="200">
|
||
<emphasis id="B9445939FF88FFD476ACBBD0FEAEF914" bold="true" box="[136,313,1741,1763]" pageId="13" pageNumber="200">FIGURES 72–99.</emphasis>
|
||
LM and SEM images of
|
||
<taxonomicName id="4C30FEA8FF88FFD47403BBD0FCB8F914" box="[551,815,1741,1762]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="13" pageNumber="200" phylum="Bacillariophyta" rank="species" species="lusitanicum">
|
||
<emphasis id="B9445939FF88FFD47403BBD0FCB8F914" box="[551,815,1741,1762]" italics="true" pageId="13" pageNumber="200">Achnanthidium lusitanicum</emphasis>
|
||
</taxonomicName>
|
||
from Guarapiranga reservoir, São Paulo state (SP-428513). 72–83. LM views of raphe valves. 84–95. LM views of rapheless valves. 96, 97. SEM external view of raphe valves showing striation pattern, axial and central areas. 98. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 99. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C32AD6A0FF88FFD47699BA6BFE73F7D7" pageId="13" pageNumber="200" type="distribution">
|
||
<paragraph id="8B8F852BFF88FFD47699BA6BFE73F7D7" blockId="13.[136,1452,1910,2081]" pageId="13" pageNumber="200">
|
||
<emphasis id="B9445939FF88FFD47699BA6BFD2BF866" bold="true" box="[189,700,1910,1937]" pageId="13" pageNumber="200">Distribution and ecological information:—</emphasis>
|
||
The taxon was found in all three habitats (occurrence of 10 %), but it was more often found in surface sediments from reservoirs. In the sediment assemblages, the ecological preferences of the taxa were for slightly alkaline (pH optimum of 7.3), medium cond. (optimum of 100.3 μS∙
|
||
<superScript id="7C452863FF88FFD472EABAA2FA97F83A" attach="right" box="[1230,1280,1982,2009]" fontSize="6" pageId="13" pageNumber="200">cm-1</superScript>
|
||
) and eutrophic waters (TP optimum of 56.7 μg∙L-
|
||
<superScript id="7C452863FF88FFD4742CBAFFFD98F806" attach="none" box="[520,527,2018,2032]" fontSize="6" pageId="13" pageNumber="200">1</superScript>
|
||
and TN optimum of 1016.5 μg∙L-
|
||
<superScript id="7C452863FF88FFD475AABAFFFC02F806" attach="right" box="[910,917,2018,2032]" fontSize="6" pageId="13" pageNumber="200">1</superScript>
|
||
). It is worth mentioning that it also occurred in oligo- and mesotrophic waters.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |