230 lines
19 KiB
XML
230 lines
19 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.81.67850" ID-GBIF-Dataset="c333dbe9-41a8-43a8-b612-4fa13b535775" ID-PMC="PMC8225595" ID-Pensoft-Pub="1314-4049-81-69" ID-Pensoft-UUID="FA1AF851F5F55EDD8F5D8C009E82B7CF" ID-PubMed="34177314" ModsDocID="1314-4049-81-69" checkinTime="1623961724664" checkinUser="pensoft" docAuthor="Meswaet, Yalemwork, Mangelsdorff, Ralph, Yorou, Nourou S. & Piepenbring, Meike" docDate="2021" docId="76794084DC545B7D8115A2890DB9B329" docLanguage="en" docName="MycoKeys 81: 69-138" docOrigin="MycoKeys 81" docPubDate="2021-06-17" docSource="http://dx.doi.org/10.3897/mycokeys.81.67850" docTitle="Cercospora sp. YMM 297 B on Phaseolus lunatus L." docType="treatment" docVersion="4" id="FA1AF851F5F55EDD8F5D8C009E82B7CF" lastPageNumber="69" masterDocId="FA1AF851F5F55EDD8F5D8C009E82B7CF" masterDocTitle="Unravelling unexplored diversity of cercosporoid fungi (Mycosphaerellaceae, Mycosphaerellales, Ascomycota) in tropical Africa" masterLastPageNumber="138" masterPageNumber="69" pageNumber="69" updateTime="1668137215071" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Unravelling unexplored diversity of cercosporoid fungi (Mycosphaerellaceae, Mycosphaerellales, Ascomycota) in tropical Africa</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Meswaet, Yalemwork</mods:namePart>
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<mods:affiliation>Department of Mycology, Institute of Ecology, Evolution and Diversity, Faculty of Biosciences, Goethe University Frankfurt am Main, Biologicum, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Mangelsdorff, Ralph</mods:namePart>
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<mods:affiliation>Department of Mycology, Institute of Ecology, Evolution and Diversity, Faculty of Biosciences, Goethe University Frankfurt am Main, Biologicum, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Yorou, Nourou S.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-6997-811X</mods:nameIdentifier>
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<mods:affiliation>Faculty of Agronomy, University of Parakou, BP 123 Parakou, Benin</mods:affiliation>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Piepenbring, Meike</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-7043-5769</mods:nameIdentifier>
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<mods:affiliation>Department of Mycology, Institute of Ecology, Evolution and Diversity, Faculty of Biosciences, Goethe University Frankfurt am Main, Biologicum, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany</mods:affiliation>
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<mods:nameIdentifier type="email">piepenbring@bio.uni-frankfurt.de</mods:nameIdentifier>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>MycoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2021</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2021-06-17</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>81</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>69</mods:start>
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<mods:end>138</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/mycokeys.81.67850</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.81.67850</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-81-69</mods:identifier>
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<mods:identifier type="Pensoft-UUID">FA1AF851F5F55EDD8F5D8C009E82B7CF</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="182953768" LSID="urn:lsid:plazi:treatment:76794084DC545B7D8115A2890DB9B329" httpUri="http://treatment.plazi.org/id/76794084DC545B7D8115A2890DB9B329" lastPageNumber="69" pageId="0" pageNumber="69">
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<subSubSection pageId="0" pageNumber="69" type="nomenclature">
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<paragraph pageId="0" pageNumber="69">
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<taxonomicName LSID="76794084-DC54-5B7D-8115-A2890DB9B329" authority="sp. YMM 297 B on Phaseolus lunatus L." authorityName="sp. YMM 297 B on Phaseolus lunatus L." class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">Cercospora sp. YMM297B on Phaseolus lunatus L.</taxonomicName>
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<figureCitation captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Cercospora sp. on Phaseolus lunatus (YMM 297 B) A fascicle of conidiophor e s emerging through a stomatal opening B solitary conidiophores C conidia. Scale bars: 15 μm (A); 10 μm (B, C)." figureDoi="10.3897/mycokeys.81.67850.figure10" httpUri="https://binary.pensoft.net/fig/556608" pageId="0" pageNumber="69">Fig. 10</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69" type="description">
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<paragraph pageId="0" pageNumber="69">Description.</paragraph>
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<paragraph pageId="0" pageNumber="69">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Leaf spots</emphasis>
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almost lacking to well-developed, amphigenous, subcircular to irregularly angular, 2.5-8 mm diam., reddish brown, later dark brown by abundant caespituli, finally sometimes greyish brown to dark reddish brown, surrounded by dark margins, often with diffuse whitish centres.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Caespituli</emphasis>
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amphigenous, greyish brown to dark brown.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Mycelium</emphasis>
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mainly internal. External hyphae branched, 2-3(-4)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, septate, olivaceous brown to brown, smooth.
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<emphasis bold="true" pageId="0" pageNumber="69">Stromata</emphasis>
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lacking or small, up to 20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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diam., immersed in the mesophyll or in substomatal cavities, subcircular to irregular, olivaceous brown to darker brown.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Conidiophores</emphasis>
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in small and loose fascicles, breaking through the adaxial epidermis of the leaves or penetrating through stomatal openings, sometimes solitarily arising through stomatal openings, erect, straight to sinuous, or somewhat geniculate, unbranched, (13-)17.5-195(-220)
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<normalizedToken originalValue="×">x</normalizedToken>
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(3.5-)4-5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, with 2-6(-8) septa each, occasionally slightly constricted and darker at the septa, brown to dark brown.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Conidiogenous cells</emphasis>
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integrated, terminal, mainly monoblastic; loci 2-3.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, thickened and darkened.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="69">Conidia</emphasis>
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solitary, narrowly obclavate to subacicular, straight to curved, (27-)36-148(-164)
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<normalizedToken originalValue="×">x</normalizedToken>
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(2.5-)3-4(-4.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, with 2-7(-9) somewhat indistinct septa each, hyaline to sub-hyaline, smooth, apex subacute or acute, base truncate to short obconically truncate, 2-3(-3.5)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, hila thickened and darkened.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69" type="specimen examined">
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<paragraph pageId="0" pageNumber="69">Specimen examined.</paragraph>
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<paragraph pageId="0" pageNumber="69">
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Benin. Borgou: Parakou, Tankaro, c. 360 m a.s.l.,
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<geoCoordinate degrees="9" direction="north" minutes="23" orientation="latitude" precision="15" seconds="01" value="9.383611">9°23'01"N</geoCoordinate>
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,
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<geoCoordinate degrees="2" direction="east" minutes="30" orientation="longitude" precision="15" seconds="36" value="2.51">2°30'36"E</geoCoordinate>
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, on
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<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Phaseolus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phaseolus lunatus" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="lunatus">
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<emphasis italics="true" pageId="0" pageNumber="69">Phaseolus lunatus</emphasis>
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</taxonomicName>
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, 20 Sep 2019, Y. Meswaet and R. Dramani, YMM297B (M-0312654; UNIPAR).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69" type="notes">
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<paragraph pageId="0" pageNumber="69">Notes.</paragraph>
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<paragraph pageId="0" pageNumber="69">
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The infection of leaves of
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<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Phaseolus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phaseolus lunatus" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="lunatus">
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<emphasis italics="true" pageId="0" pageNumber="69">Phaseolus lunatus</emphasis>
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</taxonomicName>
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by
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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sp. YMM297B was associated with the infection by
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<taxonomicName class="Dothideomycetes" family="Fabaceae" genus="Pseudocercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Pseudocercospora griseola" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="species" species="griseola">
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<emphasis italics="true" pageId="0" pageNumber="69">Pseudocercospora griseola</emphasis>
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</taxonomicName>
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. Among the
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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spp. known on
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<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Phaseolus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phaseolus" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Phaseolus</emphasis>
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</taxonomicName>
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and
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<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Vigna" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Vigna" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Vigna</emphasis>
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</taxonomicName>
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,
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<taxonomicName class="Magnoliopsida" family="Fabaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="C. olivascens" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="olivascens">
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<emphasis italics="true" pageId="0" pageNumber="69">C. olivascens</emphasis>
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</taxonomicName>
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is morphologically close to
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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sp. YMM297B.
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<taxonomicName class="Magnoliopsida" family="Fabaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="C. olivascens" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="olivascens">
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<emphasis italics="true" pageId="0" pageNumber="69">C. olivascens</emphasis>
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</taxonomicName>
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, however, differs from
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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sp. YMM297B by hypophyllous caespituli, no external hyphae, conidiophores that are up to five times geniculate and paler (
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<bibRefCitation author="Saccardo, PA" journalOrPublisher="Michelia" pageId="0" pageNumber="69" pagination="326 - 350" refId="B107" refString="Saccardo, PA, 1878. Fungi italici autographice delineati a Prof. PA Saccardo. Patavii 1878. Fascicoli V-VIII sistentes tab. 161-320. Michelia 1: 326 - 350" title="Fungi italici autographice delineati a Prof. PA Saccardo. Patavii 1878. Fascicoli V-VIII sistentes tab. 161 - 320." volume="1" year="1878">Saccardo 1878</bibRefCitation>
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;
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<bibRefCitation author="Chupp, C" journalOrPublisher="Sydowia" pageId="0" pageNumber="69" refId="B28" refString="Chupp, C, 1954. A Monograph of the Fungus Genus Cercospora. Published by the author, Ithaca." title="A Monograph of the Fungus Genus Cercospora. Published by the author, Ithaca." year="1954">Chupp 1954</bibRefCitation>
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), as well as hyaline conidia. The present specimen from Benin presents amphigenous caespituli, external hyphae, less geniculate and brown to dark brown conidiophores and often sub-hyaline conidia.
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<taxonomicName class="Magnoliopsida" family="Fabaceae" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="C. olivascens" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="olivascens">
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<emphasis italics="true" pageId="0" pageNumber="69">C. olivascens</emphasis>
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</taxonomicName>
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also differs from the present species by being originally described from
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<taxonomicName class="Dicotyledoneae" family="Aristolochiaceae" genus="Aristolochia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Aristolochia clematitis" order="Aristolochiales" pageId="0" pageNumber="69" phylum="Angiospermae" rank="species" species="clematitis">
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<emphasis italics="true" pageId="0" pageNumber="69">Aristolochia clematitis</emphasis>
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</taxonomicName>
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(
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<taxonomicName class="Dicotyledoneae" family="Aristolochiaceae" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="" order="Aristolochiales" pageId="0" pageNumber="69" phylum="Angiospermae" rank="family">Aristolochiaceae</taxonomicName>
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). According to
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<bibRefCitation author="Chupp, C" journalOrPublisher="Sydowia" pageId="0" pageNumber="69" refId="B28" refString="Chupp, C, 1954. A Monograph of the Fungus Genus Cercospora. Published by the author, Ithaca." title="A Monograph of the Fungus Genus Cercospora. Published by the author, Ithaca." year="1954">Chupp (1954)</bibRefCitation>
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, this species was wrongly reported on
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<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Phaseolus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phaseolus vulgaris" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="vulgaris">
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<emphasis italics="true" pageId="0" pageNumber="69">Phaseolus vulgaris</emphasis>
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</taxonomicName>
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by
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<bibRefCitation author="Saccardo, PA" journalOrPublisher="Michelia" pageId="0" pageNumber="69" refId="B108" refString="Saccardo, PA, 1886. Sylloge fungorum omnium hucusque cognitorum: Additamenta ad volumina I-IV. Sumptibus auctoris Typis seminarii." title="Sylloge fungorum omnium hucusque cognitorum: Additamenta ad volumina I-IV. Sumptibus auctoris Typis seminarii." year="1886">Saccardo (1886)</bibRefCitation>
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. This was confirmed by
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<bibRefCitation author="Crous, PW" journalOrPublisher="Centraalbureau voor Schimmelcultures, Utrecht" pageId="0" pageNumber="69" refId="B32" refString="Crous, PW, Braun, U, 2003. Names Published in Cercospora and Passalora. Centraalbureau voor Schimmelcultures, Utrecht" title="Names Published in Cercospora and Passalora." year="2003">Crous and Braun (2003)</bibRefCitation>
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. In the ITS phylogeny (see Suppl. material 3),
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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sp. YMM297B forms part of a polytomy with a relatively large genetic distance (branch length) in relation to other sequences considered in the analysis. In the
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<emphasis italics="true" pageId="0" pageNumber="69">tef1</emphasis>
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phylogeny (see Suppl. material 4), it is not possible to distinguish this collection from several other
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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spp. As the description and sequence data are obtained only from a single specimen, the data are not sufficient for a final conclusion and the description as a new species. A reliable species characterisation is not possible until more collections become available.
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</paragraph>
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<caption doi="10.3897/mycokeys.81.67850.figure10" httpUri="https://binary.pensoft.net/fig/556608" pageId="0" pageNumber="69" start="Figure 10" startId="F10">
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<paragraph pageId="0" pageNumber="69">
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<emphasis bold="true" pageId="0" pageNumber="69">Figure 10.</emphasis>
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<taxonomicName class="Dothideomycetes" family="Mycosphaerellaceae" genus="Cercospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cercospora" order="Mycosphaerellales" pageId="0" pageNumber="69" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="69">Cercospora</emphasis>
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</taxonomicName>
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sp. on
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<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Phaseolus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Phaseolus lunatus" order="Fabales" pageId="0" pageNumber="69" phylum="Tracheophyta" rank="species" species="lunatus">
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<emphasis italics="true" pageId="0" pageNumber="69">Phaseolus lunatus</emphasis>
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</taxonomicName>
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(YMM297B)
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<emphasis bold="true" pageId="0" pageNumber="69">A</emphasis>
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fascicle of conidiophor
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<emphasis bold="true" pageId="0" pageNumber="69">e</emphasis>
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s emerging through a stomatal opening
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<emphasis bold="true" pageId="0" pageNumber="69">B</emphasis>
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solitary conidiophores
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<emphasis bold="true" pageId="0" pageNumber="69">C</emphasis>
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conidia. Scale bars: 15
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="69">A</emphasis>
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); 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="69">B, C</emphasis>
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).
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</paragraph>
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</caption>
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</subSubSection>
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</treatment>
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</document> |