276 lines
35 KiB
XML
276 lines
35 KiB
XML
<document id="91CD5B3B5E11CDE680CAA2CE114C20CA" 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="0399343DFF94FFCA76ACB83EFC51FEF6" 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 peetersianum C. E. Wetzel, Juttner & Ector" docType="treatment" docVersion="8" lastPageNumber="205" 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="204" updateTime="1699413381687" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="621803814393A09466AA082FCA16B087">Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species</mods:title>
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<mods:affiliation id="1FECC415D9BC3C417C83EAE24442645A">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:namePart id="CEB4C237730DD51609CEC10450A2BF18">Wetzel, Carlos E.</mods:namePart>
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<mods:affiliation id="5D9891C077447C30AA725AAC3999E6C1">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:affiliation id="09774E6031579F541057F1B92C1BA962">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:affiliation id="0180DD981BCA0C424D2A23847FE601C8">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:affiliation id="F2B92306B81C5B53B09BB1DA028BB10A">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="835881586CEDEDF37E3E654DA5B9E0F9">Bicudo, Denise C.</mods:namePart>
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<mods:affiliation id="BD2C9ABBA8FDE02085D31FFDB8D3A987">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:title id="130C56A87B9E3CC40E51B9E6626373CC">Phytotaxa</mods:title>
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<mods:date id="D87169DDA27811C8F16517CE8508AA78">2022</mods:date>
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<mods:number id="AD59597B18B23637480986138F22EB66">2022-12-13</mods:number>
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<mods:number id="BE67A315A8DED3C41E7C69126E7325DA">575</mods:number>
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<mods:start id="9447928AC6579DE7CF5AFEE9CC521F7C">187</mods:start>
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<treatment id="0399343DFF94FFCA76ACB83EFC51FEF6" ID-DOI="http://doi.org/10.5281/zenodo.7432283" ID-GBIF-Taxon="206232868" ID-Zenodo-Dep="7432283" LSID="urn:lsid:plazi:treatment:0399343DFF94FFCA76ACB83EFC51FEF6" httpUri="http://treatment.plazi.org/id/0399343DFF94FFCA76ACB83EFC51FEF6" lastPageId="19" lastPageNumber="205" pageId="17" pageNumber="204">
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<paragraph id="8B8F852BFF94FFC876ACB83EFA99FAC8" blockId="17.[136,1294,1315,1342]" box="[136,1294,1315,1342]" pageId="17" pageNumber="204">
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<heading id="D0C73247FF94FFC876ACB83EFA99FAC8" box="[136,1294,1315,1342]" fontSize="11" level="2" pageId="17" pageNumber="204" reason="3">
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<taxonomicName id="4C30FEA8FF94FFC876ACB83EFCB5FAC8" authority="C. E. Wetzel, Juttner & Ector" authorityName="C. E. Wetzel, Juttner & Ector" box="[136,802,1315,1342]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="peetersianum">
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<emphasis id="B9445939FF94FFC876ACB83EFE76FACB" bold="true" box="[136,481,1315,1342]" italics="true" pageId="17" pageNumber="204">Achnanthidium peetersianum</emphasis>
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C.E.Wetzel, Jüttner & Ector
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</taxonomicName>
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in
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<treatmentCitation id="0A91A33AFF94FFC87560B83EFBCCFAC8" author="Wetzel, C. E. & Juttner, I. & Gurung, S. & Ector, L." box="[836,1115,1315,1342]" page="345" pageId="17" pageNumber="204" year="2019">
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<bibRefCitation id="EFA1F8DAFF94FFC87560B83EFBCCFAC8" author="Wetzel, C. E. & Juttner, I. & Gurung, S. & Ector, L." box="[836,1115,1315,1342]" pageId="17" pageNumber="204" pagination="340 - 350" refId="ref25532" refString="Wetzel, C. E., Juttner, I., Gurung, S. & Ector, L. (2019) Analysis of the type material of Achnanthes minutissima var. macrocephala (Bacillariophyta) and description of two new small capitate Achnanthidium species from Europe and the Himalaya. Plant Ecology and Evolution 152 (2): 340 - 350. https: // doi. org / 10.5091 / plecevo. 2019.1628" type="journal article" year="2019">
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Wetzel
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<emphasis id="B9445939FF94FFC875BCB839FC46FACB" box="[920,977,1315,1341]" italics="true" pageId="17" pageNumber="204">et al.</emphasis>
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(2019: 345)
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(
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<figureCitation id="130B99AEFF94FFC8724EB83EFA92FAC8" box="[1130,1285,1315,1342]" captionStart="FIGURES 144–165" captionStartId="18.[136,243,1638,1660]" captionTargetBox="[205,1386,190,1612]" captionTargetId="figure-27@18.[194,1393,190,1613]" captionTargetPageId="18" captionText="FIGURES 144–165. LM and SEM images of Achnanthidium peetersianum from Rifaína city, São Paulo state (SP371175). 144–154. LM views of raphe valves. 155–157. LM views of rapheless valves. 158, 159. Girdle views of the taxon. 160–162. SEM external view of raphe valves showing striation pattern, axial and central areas and the terminal raphe fissures deflected. 163. SEM internal view of the raphe valve. 164, 165. SEM external view of the rapheless valves showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431264" httpUri="https://zenodo.org/record/7431264/files/figure.png" pageId="17" pageNumber="204">Figs 144–165</figureCitation>
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)
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</heading>
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</paragraph>
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<subSubSection id="C32AD6A0FF94FFC876ACB878FE85FA55" pageId="17" pageNumber="204" type="description">
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<paragraph id="8B8F852BFF94FFC876ACB878FE85FA55" blockId="17.[136,1452,1381,2091]" pageId="17" pageNumber="204">
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<emphasis id="B9445939FF94FFC876ACB878FE51FA89" bold="true" box="[136,454,1381,1407]" pageId="17" pageNumber="204">Morphometric features:—</emphasis>
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7.6–12.3 µm long; 2.0–2.7 µm wide; 29–34 striae in 10 µm; striae mainly composed of 3–5 areolae.
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</paragraph>
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</subSubSection>
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<subSubSection id="C32AD6A0FF94FFCB7699B8B0FF46F86B" lastPageId="18" lastPageNumber="205" pageId="17" pageNumber="204" type="discussion">
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<paragraph id="8B8F852BFF94FFC87699B8B0FA98F8D9" blockId="17.[136,1452,1381,2091]" pageId="17" pageNumber="204">
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<emphasis id="B9445939FF94FFC87699B8B0FE7FFA31" bold="true" box="[189,488,1453,1479]" pageId="17" pageNumber="204">Taxonomical remarks:—</emphasis>
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Our population is in agreement with the
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<typeStatus id="548B3B89FF94FFC87590B8B0FC73FA31" box="[948,996,1453,1479]" pageId="17" pageNumber="204">type</typeStatus>
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species, besides it has slightly narrower valves when compared to the French population (2.8–3.3 μm,
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<bibRefCitation id="EFA1F8DAFF94FFC8757DB8CCFBA6FA1D" author="Wetzel, C. E. & Juttner, I. & Gurung, S. & Ector, L." box="[857,1073,1489,1515]" pageId="17" pageNumber="204" pagination="340 - 350" refId="ref25532" refString="Wetzel, C. E., Juttner, I., Gurung, S. & Ector, L. (2019) Analysis of the type material of Achnanthes minutissima var. macrocephala (Bacillariophyta) and description of two new small capitate Achnanthidium species from Europe and the Himalaya. Plant Ecology and Evolution 152 (2): 340 - 350. https: // doi. org / 10.5091 / plecevo. 2019.1628" type="journal article" year="2019">
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Wetzel
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<emphasis id="B9445939FF94FFC8758BB8CFFC7DFA1D" box="[943,1002,1489,1515]" italics="true" pageId="17" pageNumber="204">et al.</emphasis>
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2019
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</bibRefCitation>
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||
). This species has narrow valves with subcapitate to small capitate apices, similar to
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<taxonomicName id="4C30FEA8FF94FFC874EDB8E8FA30F9F9" authority="(Hustedt) Round & Bukhtiyarova (1996: 349)" authorityName="Round & Bukhtiyarova" authorityPageNumber="349" authorityYear="1996" baseAuthorityName="Hustedt" box="[713,1447,1525,1551]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="macrocephalum">
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<emphasis id="B9445939FF94FFC874EDB8E8FC0CF9F9" box="[713,923,1525,1551]" italics="true" pageId="17" pageNumber="204">A. macrocephalum</emphasis>
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(Hustedt)
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<bibRefCitation id="EFA1F8DAFF94FFC87237B8E8FA30F9F9" author="Bukhtiyarova, L. & Round, F. E." box="[1043,1447,1525,1551]" pageId="17" pageNumber="204" 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>
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</taxonomicName>
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, although the latter taxon presents broadly capitate apices. Despite being difficult to separate, a reevaluation of
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<taxonomicName id="4C30FEA8FF94FFC873B7BB04FEACF9A1" authorityName="Round & Bukhtiyarova" authorityYear="1996" baseAuthorityName="Hustedt" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="macrocephalum">
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<emphasis id="B9445939FF94FFC873B7BB04FEACF9A1" italics="true" pageId="17" pageNumber="204">A. macrocephalum</emphasis>
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||
</taxonomicName>
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<typeStatus id="548B3B89FF94FFC87766BB20FEE5F9A1" box="[322,370,1597,1623]" pageId="17" pageNumber="204">type</typeStatus>
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material was recently published in the same study as
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<taxonomicName id="4C30FEA8FF94FFC875E0BB20FAC8F9A1" authority="(Wetzel et al. 2019)" baseAuthorityName="Wetzel" baseAuthorityYear="2019" box="[964,1375,1597,1623]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="peetersianum">
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<emphasis id="B9445939FF94FFC875E0BB20FBEDF9A1" box="[964,1146,1597,1623]" italics="true" pageId="17" pageNumber="204">A. peetersianum</emphasis>
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(
|
||
<bibRefCitation id="EFA1F8DAFF94FFC872A3BB20FAC0F9A1" author="Wetzel, C. E. & Juttner, I. & Gurung, S. & Ector, L." box="[1159,1367,1597,1623]" pageId="17" pageNumber="204" pagination="340 - 350" refId="ref25532" refString="Wetzel, C. E., Juttner, I., Gurung, S. & Ector, L. (2019) Analysis of the type material of Achnanthes minutissima var. macrocephala (Bacillariophyta) and description of two new small capitate Achnanthidium species from Europe and the Himalaya. Plant Ecology and Evolution 152 (2): 340 - 350. https: // doi. org / 10.5091 / plecevo. 2019.1628" type="journal article" year="2019">
|
||
Wetzel
|
||
<emphasis id="B9445939FF94FFC872F8BB23FA83F9A1" box="[1244,1300,1597,1623]" italics="true" pageId="17" pageNumber="204">et al.</emphasis>
|
||
2019
|
||
</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Using SEM micrographs, the authors showed that
|
||
<taxonomicName id="4C30FEA8FF94FFC8744EBB7CFC88F98D" box="[618,799,1633,1659]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="peetersianum">
|
||
<emphasis id="B9445939FF94FFC8744EBB7CFC88F98D" box="[618,799,1633,1659]" italics="true" pageId="17" pageNumber="204">A. peetersianum</emphasis>
|
||
</taxonomicName>
|
||
presented predominantly rounded areolae and had a higher density per stria, while
|
||
<taxonomicName id="4C30FEA8FF94FFC877ADBB98FDCDF969" authorityName="Round & Bukhtiyarova" authorityYear="1996" baseAuthorityName="Hustedt" box="[393,602,1669,1695]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="macrocephalum">
|
||
<emphasis id="B9445939FF94FFC877ADBB98FDCDF969" box="[393,602,1669,1695]" italics="true" pageId="17" pageNumber="204">A. macrocephalum</emphasis>
|
||
</taxonomicName>
|
||
striae are composed of 1–2 elongated areolae of different lengths. Moreover, the axial area of the rapheless valve of the latter taxon is expanded, widening towards the central area. Recently,
|
||
<bibRefCitation id="EFA1F8DAFF94FFC87355BBB4FF61F911" author="Yu, P. & You, Q. - M. & Pang, W. - T. & Cao, Y. & Wang, Q. - X." pageId="17" pageNumber="204" pagination="147 - 170" refId="ref26019" refString="Yu, P., You, Q. - M., Pang, W. - T., Cao, Y. & Wang, Q. - X. (2019) Five new Achnanthidiaceae species (Bacillariophyta) from Jiuzhai Valley, Sichuan Province, Southwestern China. Phytotaxa 405 (3): 147 - 170. https: // doi. org / 10.11646 / phytotaxa. 405.3.5" type="journal article" year="2019">
|
||
Yu
|
||
<emphasis id="B9445939FF94FFC873B3BBB7FF32F911" italics="true" pageId="17" pageNumber="204">et al.</emphasis>
|
||
(2019)
|
||
</bibRefCitation>
|
||
described two small species that resemble ours:
|
||
<taxonomicName id="4C30FEA8FF94FFC87535BBD0FBBEF911" authority="P. Yu, Q." authorityName="P. Yu, Q." box="[785,1065,1741,1767]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="subtilissimum">
|
||
<emphasis id="B9445939FF94FFC87535BBD0FC5DF911" box="[785,970,1741,1767]" italics="true" pageId="17" pageNumber="204">A. subtilissimum</emphasis>
|
||
P.Yu, Q.
|
||
</taxonomicName>
|
||
-M.You & Q.-X.Wang (in
|
||
<bibRefCitation id="EFA1F8DAFF94FFC8736BBBD0FF6EF8FD" author="Yu, P. & You, Q. - M. & Pang, W. - T. & Cao, Y. & Wang, Q. - X." pageId="17" pageNumber="204" pagination="147 - 170" refId="ref26019" refString="Yu, P., You, Q. - M., Pang, W. - T., Cao, Y. & Wang, Q. - X. (2019) Five new Achnanthidiaceae species (Bacillariophyta) from Jiuzhai Valley, Sichuan Province, Southwestern China. Phytotaxa 405 (3): 147 - 170. https: // doi. org / 10.11646 / phytotaxa. 405.3.5" type="journal article" year="2019">
|
||
Yu
|
||
<emphasis id="B9445939FF94FFC87350BBD3FA3BF911" box="[1396,1452,1741,1767]" italics="true" pageId="17" pageNumber="204">et al.</emphasis>
|
||
2019: 161
|
||
</bibRefCitation>
|
||
) and
|
||
<taxonomicName id="4C30FEA8FF94FFC87712BBECFD9CF8FD" authority="P. Yu, Q." authorityName="P. Yu, Q." box="[310,523,1777,1803]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="limosua">
|
||
<emphasis id="B9445939FF94FFC87712BBECFE3AF8FD" box="[310,429,1777,1803]" italics="true" pageId="17" pageNumber="204">A. limosua</emphasis>
|
||
P.Yu, Q.
|
||
</taxonomicName>
|
||
-M.You & Q.-X.Wang (in
|
||
<bibRefCitation id="EFA1F8DAFF94FFC87514BBECFB91F8FA" author="Yu, P. & You, Q. - M. & Pang, W. - T. & Cao, Y. & Wang, Q. - X." box="[816,1030,1777,1804]" pageId="17" pageNumber="204" pagination="147 - 170" refId="ref26019" refString="Yu, P., You, Q. - M., Pang, W. - T., Cao, Y. & Wang, Q. - X. (2019) Five new Achnanthidiaceae species (Bacillariophyta) from Jiuzhai Valley, Sichuan Province, Southwestern China. Phytotaxa 405 (3): 147 - 170. https: // doi. org / 10.11646 / phytotaxa. 405.3.5" type="journal article" year="2019">
|
||
Yu
|
||
<emphasis id="B9445939FF94FFC87571BBEFFC1AF8FD" box="[853,909,1777,1803]" italics="true" pageId="17" pageNumber="204">et al.</emphasis>
|
||
2019: 158
|
||
</bibRefCitation>
|
||
). The first species is likely a synonym of
|
||
<taxonomicName id="4C30FEA8FF94FFC87682BA08FEEFF8D9" authorityName="Round & Bukhtiyarova" authorityYear="1996" baseAuthorityName="Hustedt" box="[166,376,1813,1839]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="macrocephalum">
|
||
<emphasis id="B9445939FF94FFC87682BA08FEEFF8D9" box="[166,376,1813,1839]" italics="true" pageId="17" pageNumber="204">A. macrocephalum</emphasis>
|
||
</taxonomicName>
|
||
, and the second presents visibly larger valves (3.2–4.0 µm) than
|
||
<taxonomicName id="4C30FEA8FF94FFC87276BA08FA9FF8D9" box="[1106,1288,1813,1839]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="peetersianum">
|
||
<emphasis id="B9445939FF94FFC87276BA08FA9FF8D9" box="[1106,1288,1813,1839]" italics="true" pageId="17" pageNumber="204">A. peetersianum</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8B8F852BFF94FFC87699BA24FB2CF7DD" blockId="17.[136,1452,1381,2091]" pageId="17" pageNumber="204">
|
||
<taxonomicName id="4C30FEA8FF94FFC87699BA24FE6BF8A5" authorityName="Van de Vijver & Kopalova" authorityYear="2014" box="[189,508,1849,1875]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="indistinctum">
|
||
<emphasis id="B9445939FF94FFC87699BA24FE6BF8A5" box="[189,508,1849,1875]" italics="true" pageId="17" pageNumber="204">Achnanthidium indistinctum</emphasis>
|
||
</taxonomicName>
|
||
also bears several similarities with
|
||
<taxonomicName id="4C30FEA8FF94FFC875BDBA24FBC6F8A5" box="[921,1105,1849,1875]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="peetersianum">
|
||
<emphasis id="B9445939FF94FFC875BDBA24FBC6F8A5" box="[921,1105,1849,1875]" italics="true" pageId="17" pageNumber="204">A. peetersianum</emphasis>
|
||
</taxonomicName>
|
||
. They can be distinguished in girdle view by the apparently thickened striae in the first taxon, which is not visible in our specimens (see
|
||
<figureCitation id="130B99AEFF94FFC87366BA40FF21F86A" captionStart="FIGURES 144–165" captionStartId="18.[136,243,1638,1660]" captionTargetBox="[205,1386,190,1612]" captionTargetId="figure-27@18.[194,1393,190,1613]" captionTargetPageId="18" captionText="FIGURES 144–165. LM and SEM images of Achnanthidium peetersianum from Rifaína city, São Paulo state (SP371175). 144–154. LM views of raphe valves. 155–157. LM views of rapheless valves. 158, 159. Girdle views of the taxon. 160–162. SEM external view of raphe valves showing striation pattern, axial and central areas and the terminal raphe fissures deflected. 163. SEM internal view of the raphe valve. 164, 165. SEM external view of the rapheless valves showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431264" httpUri="https://zenodo.org/record/7431264/files/figure.png" pageId="17" pageNumber="204">Figs 158, 159</figureCitation>
|
||
). Concerning the valve view,
|
||
<taxonomicName id="4C30FEA8FF94FFC8742CBA9CFD25F86D" authorityName="Van de Vijver & Kopalova" authorityYear="2014" box="[520,690,1921,1947]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="indistinctum">
|
||
<emphasis id="B9445939FF94FFC8742CBA9CFD25F86D" box="[520,690,1921,1947]" italics="true" pageId="17" pageNumber="204">A. indistinctum</emphasis>
|
||
</taxonomicName>
|
||
presents rostrate apices and an almost nonexistent central area that never forms a fascia. On the other hand,
|
||
<taxonomicName id="4C30FEA8FF94FFC87473BAB8FC99F849" box="[599,782,1957,1983]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="peetersianum">
|
||
<emphasis id="B9445939FF94FFC87473BAB8FC99F849" box="[599,782,1957,1983]" italics="true" pageId="17" pageNumber="204">A. peetersianum</emphasis>
|
||
</taxonomicName>
|
||
exhibits subcapitate to capitate apices and a small rounded central area that rarely forms a fascia. Notably, SEM analysis can also help separate both taxa due to the distal raphe ends straight in
|
||
<taxonomicName id="4C30FEA8FF94FFC87766BAF0FE79F7F1" authorityName="Van de Vijver & Kopalova" authorityYear="2014" box="[322,494,2029,2055]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="17" pageNumber="204" phylum="Bacillariophyta" rank="species" species="indistinctum">
|
||
<emphasis id="B9445939FF94FFC87766BAF0FE79F7F1" box="[322,494,2029,2055]" italics="true" pageId="17" pageNumber="204">A. indistinctum</emphasis>
|
||
</taxonomicName>
|
||
and bent in our specimens. Despite the slightly narrower valves in the latter taxon (1.8–2.2 µm,
|
||
<bibRefCitation id="EFA1F8DAFF94FFC87704B50CFD1AF7DD" author="Van de Vijver, B. & Kopalova, K." box="[288,653,2065,2091]" pageId="17" pageNumber="204" pagination="1 - 19" refId="ref25160" refString="Van de Vijver, B. & Kopalova, K. (2014) Four Achnanthidium species (Bacillariophyta) formerly identified as Achnanthidium minutissimum from the Antarctic Region. European Journal of Taxonomy 79: 1 - 19. https: // doi. org / 10.5852 / ejt. 2014.79" type="journal article" year="2014">Van de Vijver & Kopalová 2014</bibRefCitation>
|
||
), the metric features of these two species overlap.
|
||
</paragraph>
|
||
<caption id="DF4FD5A3FF97FFCB76ACBB7BFE42F8FA" ID-DOI="http://doi.org/10.5281/zenodo.7431264" ID-Zenodo-Dep="7431264" httpUri="https://zenodo.org/record/7431264/files/figure.png" pageId="18" pageNumber="205" startId="18.[136,243,1638,1660]" targetBox="[205,1386,190,1612]" targetPageId="18">
|
||
<paragraph id="8B8F852BFF97FFCB76ACBB7BFE42F8FA" blockId="18.[136,1451,1638,1804]" pageId="18" pageNumber="205">
|
||
<emphasis id="B9445939FF97FFCB76ACBB7BFEC5F98D" bold="true" box="[136,338,1638,1660]" pageId="18" pageNumber="205">FIGURES 144–165.</emphasis>
|
||
LM and SEM images of
|
||
<taxonomicName id="4C30FEA8FF97FFCB7460BB7BFCC9F98A" box="[580,862,1638,1660]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="18" pageNumber="205" phylum="Bacillariophyta" rank="species" species="peetersianum">
|
||
<emphasis id="B9445939FF97FFCB7460BB7BFCC9F98A" box="[580,862,1638,1660]" italics="true" pageId="18" pageNumber="205">Achnanthidium peetersianum</emphasis>
|
||
</taxonomicName>
|
||
from Rifaína city, São Paulo state (SP371175). 144–154. LM views of raphe valves. 155–157. LM views of rapheless valves. 158, 159. Girdle views of the taxon. 160–162. SEM external view of raphe valves showing striation pattern, axial and central areas and the terminal raphe fissures deflected. 163. SEM internal view of the raphe valve. 164, 165. SEM external view of the rapheless valves showing striation pattern, axial and central areas. LM scale bar = 10 μm. SEM scale bars indicated in each figure.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8B8F852BFF97FFCB7699BA27FF46F86B" blockId="18.[136,1451,1850,2057]" pageId="18" pageNumber="205">
|
||
<treatmentCitationGroup id="AB20A205FF97FFCB7699BA27FF46F86B" pageId="18" pageNumber="205">
|
||
<treatmentCitation id="0A91A33AFF97FFCB7699BA27FC3EF8A3" author="Ponader, K. C. & Potapova, M. G." box="[189,937,1850,1877]" page=")" pageId="18" pageNumber="205" year="2007">
|
||
<taxonomicName id="4C30FEA8FF97FFCB7699BA27FC3EF8A3" authority="(Camburn) Ponader & Potapova (2007: 235)" authorityName="Ponader & Potapova" authorityPageNumber="235" authorityYear="2007" baseAuthorityName="Camburn" box="[189,937,1850,1877]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="18" pageNumber="205" phylum="Bacillariophyta" rank="species" species="reimeri">
|
||
<emphasis id="B9445939FF97FFCB7699BA27FE29F8A2" box="[189,446,1850,1876]" italics="true" pageId="18" pageNumber="205">Achnanthidium reimeri</emphasis>
|
||
(Camburn)
|
||
<bibRefCitation id="EFA1F8DAFF97FFCB7466BA27FC3EF8A3" author="Ponader, K. C. & Potapova, M. G." box="[578,937,1850,1877]" pageId="18" pageNumber="205" pagination="227 - 241" refId="ref24038" refString="Ponader, K. C. & Potapova, M. G. (2007) Diatoms from the genus Achnanthidium in flowing waters of the Appalachian Mountains (North America): Ecology, distribution and taxonomic notes. Limnologica 37 (3): 227 - 241. https: // doi. org / 10.1016 / j. limno. 2007.01.004" type="journal article" year="2007">Ponader & Potapova (2007: 235)</bibRefCitation>
|
||
</taxonomicName>
|
||
</treatmentCitation>
|
||
has a similar valve outline with our population, however, it presents longer and wider valves and a rhomboid central area on the rapheless valve (
|
||
<bibRefCitation id="EFA1F8DAFF97FFCB72E6BA43FF52F86B" author="Ponader, K. C. & Potapova, M. G." pageId="18" pageNumber="205" pagination="227 - 241" refId="ref24038" refString="Ponader, K. C. & Potapova, M. G. (2007) Diatoms from the genus Achnanthidium in flowing waters of the Appalachian Mountains (North America): Ecology, distribution and taxonomic notes. Limnologica 37 (3): 227 - 241. https: // doi. org / 10.1016 / j. limno. 2007.01.004" type="journal article" year="2007">Ponader & Potapova 2007</bibRefCitation>
|
||
).
|
||
</treatmentCitationGroup>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C32AD6A0FF97FFCA7699BABBFC51FEF6" lastPageId="19" lastPageNumber="206" pageId="18" pageNumber="205" type="distribution">
|
||
<paragraph id="8B8F852BFF97FFCA7699BABBFC51FEF6" blockId="18.[136,1451,1850,2057]" lastBlockId="19.[136,1451,158,257]" lastPageId="19" lastPageNumber="206" pageId="18" pageNumber="205">
|
||
<emphasis id="B9445939FF97FFCB7699BABBFD2EF836" bold="true" box="[189,697,1958,1985]" pageId="18" pageNumber="205">Distribution and ecological information:—</emphasis>
|
||
Recently described from Le Sauvigny River in
|
||
<collectingCountry id="F327C5BBFF97FFCB72E0BABAFA84F837" box="[1220,1299,1959,1985]" name="France" pageId="18" pageNumber="205">France</collectingCountry>
|
||
, it was one of the most well-distributed species found in this study (40 % of occurrence). It is plausible that this taxon was previously identified in Brazilian publications as
|
||
<taxonomicName id="4C30FEA8FF97FFCB7414BAF2FC95F7FE" authorityName="Round & Bukhtiyarova" authorityYear="1996" baseAuthorityName="Hustedt" box="[560,770,2030,2057]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="18" pageNumber="205" phylum="Bacillariophyta" rank="species" species="macrocephalum">
|
||
<emphasis id="B9445939FF97FFCB7414BAF2FC95F7FE" box="[560,770,2030,2057]" italics="true" pageId="18" pageNumber="205">A. macrocephalum</emphasis>
|
||
</taxonomicName>
|
||
. In this study,
|
||
<taxonomicName id="4C30FEA8FF97FFCB7581BAF2FBCDF7FE" box="[933,1114,2031,2057]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="18" pageNumber="205" phylum="Bacillariophyta" rank="species" species="peetersianum">
|
||
<emphasis id="B9445939FF97FFCB7581BAF2FBCDF7FE" box="[933,1114,2031,2057]" italics="true" pageId="18" pageNumber="205">A. peetersianum</emphasis>
|
||
</taxonomicName>
|
||
occurred in all of the sampled habitats. Its ecological preference was for slightly acidic (pH optimum of 6.6–6.7), electrolytic-poor (optimum of 28.2–49 μS∙
|
||
<superScript id="7C452863FF96FFCA7734BDDFFED6FF26" attach="left" box="[272,321,194,220]" fontSize="6" pageId="19" pageNumber="206">cm-1</superScript>
|
||
) and oligo- to mesotrophic waters (TP optimum of 14.9–27.1 μg∙L-
|
||
<superScript id="7C452863FF96FFCA726FBDDFFBC5FF26" attach="right" box="[1099,1106,194,208]" fontSize="6" pageId="19" pageNumber="206">1</superScript>
|
||
, TN optimum of 374.4–519.4 μg∙L-
|
||
<superScript id="7C452863FF96FFCA76E0BDFBFF5CFF02" attach="right" box="[196,203,230,244]" fontSize="6" pageId="19" pageNumber="206">1</superScript>
|
||
). We also observed this species in enriched waters (TP> 50 μg∙L-
|
||
<superScript id="7C452863FF96FFCA758ABDFBFC22FF02" attach="right" box="[942,949,230,244]" fontSize="6" pageId="19" pageNumber="206">1</superScript>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |