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<document id="51388400E756BD34E946EAACC508081F" ID-DOI="10.11646/phytotaxa.607.3.2" ID-ISSN="1179-3163" ID-Zenodo-Dep="8243269" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1691940191360" checkinUser="plazi" docAuthor="Hernández-Becerril, David U." docDate="2023" docId="1F6E031EFFD65675BCDB0871DB05FB1C" docLanguage="en" docName="phytotaxa.607.3.2.pdf" docOrigin="Phytotaxa 607 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.607.3.2" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.6:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="6" docTitle="Skeletonema grevillei Sarno et Zingone" docType="treatment" docVersion="2" lastPageNumber="187" masterDocId="E3577B66FFD35670BC530A03DF6FFFB4" masterDocTitle="Further studies on the species diversity of the marine planktonic diatom genus Skeletonema (Bacillariophyta) in the Mexican Pacific" masterLastPageNumber="196" masterPageNumber="182" pageNumber="187" updateTime="1691940695684" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="2E29208723C0ED7F6E3A0EC7BE92551B">Further studies on the species diversity of the marine planktonic diatom genus Skeletonema (Bacillariophyta) in the Mexican Pacific</mods:title>
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<mods:namePart id="A74EC5320D4179EEB627C6CD1DAA6D2F">Hernández-Becerril, David U.</mods:namePart>
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<mods:date id="147105712A4BCB5E46A90821D456AF53">2023</mods:date>
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<subSubSection id="DFDDE183FFD65675BCDB0871DD3CFD38" box="[136,595,626,653]" pageId="5" pageNumber="187" type="nomenclature">
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<paragraph id="9778B208FFD65675BCDB0871DD3CFD38" blockId="5.[136,1451,626,760]" box="[136,595,626,653]" pageId="5" pageNumber="187">
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<heading id="CC300564FFD65675BCDB0871DD3CFD38" bold="true" box="[136,595,626,653]" fontSize="11" level="1" pageId="5" pageNumber="187" reason="1">
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<taxonomicName id="50C7C98BFFD65675BCDB0871DD3CFD38" authority="Sarno et Zingone" authorityName="Sarno et Zingone" box="[136,595,626,653]" class="Coscinodiscophyceae" family="Skeletonemaceae" genus="Skeletonema" higherTaxonomySource="GBIF" kingdom="Chromista" order="Thalassiosirales" pageId="5" pageNumber="187" phylum="Ochrophyta" rank="species" species="grevillei">
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<emphasis id="A5B36E1AFFD65675BCDB0871DD3CFD38" bold="true" box="[136,595,626,653]" pageId="5" pageNumber="187">
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<emphasis id="A5B36E1AFFD65675BCDB0871DEEFFD39" bold="true" box="[136,384,626,653]" italics="true" pageId="5" pageNumber="187">Skeletonema grevillei</emphasis>
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Sarno
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<emphasis id="A5B36E1AFFD65675BD850870DE85FD39" bold="true" box="[470,490,627,653]" italics="true" pageId="5" pageNumber="187">et</emphasis>
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Zingone
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="DFDDE183FFD65675BCDB0895DB05FB1C" pageId="5" pageNumber="187" type="description">
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<paragraph id="9778B208FFD65675BCDB0895DE69FD04" blockId="5.[136,1451,626,760]" box="[136,262,662,688]" pageId="5" pageNumber="187">
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<figureCitation id="0FFCAE8DFFD65675BCDB0895DE69FD04" box="[136,262,662,688]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 12–17</figureCitation>
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</paragraph>
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<paragraph id="9778B208FFD65675BCDB08BDDC2EFD4C" blockId="5.[136,1451,626,760]" pageId="5" pageNumber="187">
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References:
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<bibRefCitation id="F356CFF9FFD65675BD5308BDDED1FD60" author="Zingone, A. & Percopo, I. & Sims, P. & Sarno, D." box="[256,446,702,724]" pageId="5" pageNumber="187" pagination="140 - 150" refId="ref10003" refString="Zingone, A., Percopo, I., Sims, P. & Sarno, D. (2005) Diversity in the genus Skeletonema (Bacillariophyceae). I. A reexamination of S. costatum with the description of S. grevillei sp. nov .. Journal of Phycology 41: 140 - 150. https: // doi. org / 10.1111 / j. 1529 - 8817.2005.04066" type="journal article" year="2005">
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Zingone
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<emphasis id="A5B36E1AFFD65675BD0508BDDEEFFD67" box="[342,384,702,723]" italics="true" pageId="5" pageNumber="187">et al</emphasis>
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. 2005
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</bibRefCitation>
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, p. 144, figs 5 A–F, 6 A–I;
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<bibRefCitation id="F356CFF9FFD65675BE9708BDDC05FD67" author="Sarno, D. & Kooistra, W. H. C. F. & Balzano, S. & Hargraves, P. E. & Zingone, A." box="[708,874,702,723]" pageId="5" pageNumber="187" pagination="156 - 170" refId="ref8868" refString="Sarno, D., Kooistra, W. H. C. F., Balzano, S., Hargraves, P. E. & Zingone, A. (2007) Diversity in the genus Skeletonema (Bacillariophyceae): III. Phylogenetic position and morphological variability of Skeletonema costatum and Skeletonema grevillei, with the description of Skeletonema ardens sp. nov. Journal of Phycology 43: 156 - 170. https: // doi. org / 10.1111 / j. 1529 - 8817.2006.00305. x" type="journal article" year="2007">
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Sarno
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<emphasis id="A5B36E1AFFD65675BF5108BDDC42FD67" box="[770,813,702,723]" italics="true" pageId="5" pageNumber="187">et al</emphasis>
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. 2007
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</bibRefCitation>
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, p. 162, figs 2 A–J;
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<bibRefCitation id="F356CFF9FFD65675B87F08BDDBA6FD67" author="Naik, R. K. & Sarno, D. & Kooistra, W. H. C. F. & D'Costa, P. M. & Anil, A. C." box="[1068,1225,702,724]" pageId="5" pageNumber="187" pagination="290 - 293" refId="ref8676" refString="Naik, R. K., Sarno, D., Kooistra, W. H. C. F., D'Costa, P. M. & Anil, A. C. (2010) Skeletonema (Bacillariophyceae) in Indian waters: a reappraisal. Indian Journal of Marine Science 39: 290 - 293." type="journal article" year="2010">
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Naik
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<emphasis id="A5B36E1AFFD65675B83308BDDBE4FD67" box="[1120,1163,702,723]" italics="true" pageId="5" pageNumber="187">et al</emphasis>
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. 2010
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</bibRefCitation>
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, p. 291, figs 3–6;
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<bibRefCitation id="F356CFF9FFD65675B92508BDDE61FD43" author="Gu, H. & Zhang, X. & Sun, J. & Luo, Z." pageId="5" pageNumber="187" pagination="245 - 263" refId="ref7757" refString="Gu, H., Zhang, X., Sun, J. & Luo, Z. (2012) Diversity and seasonal occurrence of Skeletonema (Bacillariophyta) species in Xiamen Harbour and surrounding seas, China. Cryptogamie Algology 33: 245 - 263. https: // doi. org / 10.7872 / crya. v 33. iss 3.2012.245" type="journal article" year="2012">
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Gu
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<emphasis id="A5B36E1AFFD65675B9C908BDDFBFFD43" italics="true" pageId="5" pageNumber="187">et al</emphasis>
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. 2012
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</bibRefCitation>
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, p. 254, figs 15–17;
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<bibRefCitation id="F356CFF9FFD65675BD8008E1DDF5FD43" author="Buzancic, M. & Arapov, J. & Bakrac, A. & Nincevic Gladan, Z. & Skejic, S." box="[467,666,738,760]" pageId="5" pageNumber="187" pagination="193 - 199" refId="ref7268" refString="Buzancic, M., Arapov, J., Bakrac, A., Nincevic Gladan, Z. & Skejic, S. (2017) Morphological characterization of Skeletonema grevillei (Bacillariophyta, Thalassiosirales) in the Eastern Adriatic Sea. Vie et Milieu 67: 193 - 199." type="journal article" year="2017">
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Bužančić
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<emphasis id="A5B36E1AFFD65675BE6108E1DD33FD43" box="[562,604,738,759]" italics="true" pageId="5" pageNumber="187">et al</emphasis>
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. 2017
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</bibRefCitation>
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, p. 195, figs 2–5.
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</paragraph>
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<paragraph id="9778B208FFD65675BCDB0925DC6CFC40" blockId="5.[136,1452,806,1193]" pageId="5" pageNumber="187">
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Description: Chains are relatively thin, delicate, mostly long (2–9 cells per chain, usually more than 6) and straight to slightly curved (
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<figureCitation id="0FFCAE8DFFD65675BD6E0949DEFFFCD0" box="[317,400,842,868]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Fig. 12</figureCitation>
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). Usually there are two chloroplasts per cell (
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<figureCitation id="0FFCAE8DFFD65675BFD40949DCB5FCD0" box="[903,986,842,868]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Fig. 12</figureCitation>
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). Valves are flat to slightly convex, with a relatively high valve mantle (
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<figureCitation id="0FFCAE8DFFD65675BD94096DDD28FC3C" box="[455,583,878,904]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13–16</figureCitation>
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). Most specimens show siliceous ridges, sometimes poorly developed, dividing valve face and mantle (
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<figureCitation id="0FFCAE8DFFD65675BDC10991DD79FC19" box="[402,534,914,941]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13, 15</figureCitation>
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, small arrows). Additional ridges are also found at the bases of the fultoportulae (
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<figureCitation id="0FFCAE8DFFD65675BCC309B5DE61FC64" box="[144,270,950,976]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 14, 16</figureCitation>
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, small arrows). The valves have very irregular areolae with rectangular, polyedric or elongate areolae (
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<figureCitation id="0FFCAE8DFFD65675B92909B5DFBEFC40" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 16, 17</figureCitation>
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). Details of the cingular bands were not observed.
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</paragraph>
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<paragraph id="9778B208FFD65675BCEE09FDDBFEFB30" blockId="5.[136,1452,806,1193]" pageId="5" pageNumber="187">
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The fultoportulae are open throughout them (
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<figureCitation id="0FFCAE8DFFD65675BE8209FDDC38FBAC" box="[721,855,1022,1048]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13–16</figureCitation>
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), and the TF’s have their tips irregularly truncated (
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<figureCitation id="0FFCAE8DFFD65675BCC30E21DE50FB88" box="[144,319,1058,1085]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13, 15, 16</figureCitation>
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). Each IF fuses to one of the sibling valve (
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<figureCitation id="0FFCAE8DFFD65675BF620E21DCDAFB88" box="[817,949,1058,1084]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13, 14</figureCitation>
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). Three to four satellite pores surround each fultoportula (
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<figureCitation id="0FFCAE8DFFD65675BD4F0E45DE00FBD4" box="[284,367,1094,1120]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Fig. 17</figureCitation>
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, arrows). The TR’s are marginal (
|
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<figureCitation id="0FFCAE8DFFD65675BEB80E45DC02FBD4" box="[747,877,1094,1120]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13, 16</figureCitation>
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, arrows), and have a long tube, with an inflated tip (
|
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<figureCitation id="0FFCAE8DFFD65675BCC30E69DE54FB30" box="[144,315,1130,1157]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Figs 13, 15, 16</figureCitation>
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, arrows), whereas the IR is almost marginal, but very short (
|
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<figureCitation id="0FFCAE8DFFD65675BFB30E69DB5CFB30" box="[992,1075,1130,1156]" captionStart="FIGURES 12–17" captionStartId="6.[136,248,1709,1731]" captionTargetBox="[158,1430,360,1675]" captionTargetId="figure-82@6.[151,1436,353,1684]" captionTargetPageId="6" captionText="FIGURES 12–17. Skeletonema grevillei, LM (12), SEM (13–16) and TEM (17). Fig. 12. A rather long chain of 8 cells, some of them dividing, containing two chloroplasts per cell. Fig. 13. Terminal part of a chain showing terminal and intercalary valves, siliceous ridges (small arrows) between face and mantle at the terminal valve, TF’s, one TR (arrow), and broken IF’s. Fig. 14. Intercalary valves with IF’s fusing to those of sibling valve in 1:1 junction type, a short IR (arrow), and siliceous ridges (small arrows) around bases of IF’s. Fig. 15. Terminal valve with fultoportulae (TF’s) irregularly truncated, a marginal rimoportula (arrow), and siliceous ridges (small arrows) dividing valve face and mantle.Fig. 16.Another terminal valve showing details of the areolae, siliceous ridges (small arrows) around bases of the TF’s, and a marginal rimoportula with slightly inflated tip (arrow). Fig. 17. Details of the three to four satellite pores surrounding each fultoportula (arrows)." figureDoi="http://doi.org/10.5281/zenodo.8243275" httpUri="https://zenodo.org/record/8243275/files/figure.png" pageId="5" pageNumber="187">Fig. 14</figureCitation>
|
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, arrow).
|
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|
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</paragraph>
|
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<paragraph id="9778B208FFD65675BCEE0E8CDB05FB1C" blockId="5.[136,1452,806,1193]" box="[189,1130,1166,1193]" pageId="5" pageNumber="187">
|
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Measurements: cell diameter 3.4–5.8 μm, areolae density
|
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<quantity id="503F1FEDFFD65675BF160E8DDCC7FB1C" box="[837,936,1166,1193]" metricMagnitude="0" metricUnit="m" metricValue="1.0668000000000002" metricValueMax="1.2953999999999999" metricValueMin="0.8382000000000002" pageId="5" pageNumber="187" unit="in" value="42.0" valueMax="51.0" valueMin="33.0">33–51 in</quantity>
|
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|
10 μm (
|
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|
|
<tableCitation id="DA4587B3FFD65675B8560E8DDB36FB1C" box="[1029,1113,1166,1192]" captionStart="TABLE 1" captionStartId="2.[137,230,159,183]" captionText="TABLE 1. Morphological characters and morphometric data of the Skeletonema species identified in this work from the Mexican Pacific Ocean. 1Gu et al. (2012), 2Bužančić et al. (2017), 3Zingone et al. (2005), 4Sarno et al. (2005), 5Hernández- Becerril et al. (2013), 6Jung et al. (2009), 7Sarno et al. (2007), 8Liu et al. (2012)" pageId="5" pageNumber="187">Table 1</tableCitation>
|
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).
|
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|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
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|
|
</treatment>
|
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|
|
</document>
|