371 lines
27 KiB
XML
371 lines
27 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.71.55493" ID-GBIF-Dataset="527b5a6e-6e21-4d4e-a6b8-e580ffbe4e19" ID-PMC="PMC7423779" ID-Pensoft-Pub="1314-4049-71-101" ID-Pensoft-UUID="7E8A23654FC554FFB834AA47B120E551" ID-PubMed="32855605" ModsDocID="1314-4049-71-101" checkinTime="1596691564965" checkinUser="pensoft" docAuthor="Samarakoon, Binu C., Wanasinghe, Dhanushka N., Samarakoon, Milan C., Phookamsak, Rungtiwa, McKenzie, Eric H. C., Chomnunti, Putarak, Hyde, Kevin D., Lumyong, Saisamorn & Karunarathna, Samantha C." docDate="2020" docId="7BDFC66F963652E88C6FAC016DFBC029" docLanguage="en" docName="MycoKeys 71: 101-118" docOrigin="MycoKeys 71" docSource="http://dx.doi.org/10.3897/mycokeys.71.55493" docTitle="Dictyoarthrinium musae Samarakoon, Chomnunti & K. D. Hyde 2020, sp. nov." docType="treatment" docVersion="4" id="7E8A23654FC554FFB834AA47B120E551" lastPageNumber="107" masterDocId="7E8A23654FC554FFB834AA47B120E551" masterDocTitle="Multi-gene phylogenetic evidence suggests Dictyoarthrinium belongs in Didymosphaeriaceae (Pleosporales, Dothideomycetes) and Dictyoarthrinium musae sp. nov. on Musa from Thailand" masterLastPageNumber="118" masterPageNumber="101" pageNumber="106" updateTime="1668136512009" 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>Multi-gene phylogenetic evidence suggests Dictyoarthrinium belongs in Didymosphaeriaceae (Pleosporales, Dothideomycetes) and Dictyoarthrinium musae sp. nov. on Musa from Thailand</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>Samarakoon, Binu C.</mods:namePart>
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<mods:affiliation>Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand & Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand & School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand</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>Wanasinghe, Dhanushka N.</mods:namePart>
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<mods:affiliation>CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China & World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan, China & Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming 650201, Yunnan, China</mods:affiliation>
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<mods:nameIdentifier type="orcid">https://orcid.org/0000-0003-1759-3933</mods:nameIdentifier>
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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>Samarakoon, Milan C.</mods:namePart>
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<mods:affiliation>Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand & Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand</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>Phookamsak, Rungtiwa</mods:namePart>
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<mods:affiliation>Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand & CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China & World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan, China & Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming 650201, Yunnan, China & Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand</mods:affiliation>
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<mods:nameIdentifier type="orcid">https://orcid.org/0000-0002-6321-8416</mods:nameIdentifier>
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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>McKenzie, Eric H. C.</mods:namePart>
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<mods:affiliation>Manaaki Whenua-Landcare Research, Private Bag 92170, Auckland, New Zealand</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>Chomnunti, Putarak</mods:namePart>
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<mods:affiliation>Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand & School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand</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>Hyde, Kevin D.</mods:namePart>
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<mods:affiliation>Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand & Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangdong Province, People's Republic of China</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>Lumyong, Saisamorn</mods:namePart>
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<mods:affiliation>Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand & Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand & Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand</mods:affiliation>
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<mods:nameIdentifier type="email">scboi009@gmail.com</mods:nameIdentifier>
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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>Karunarathna, Samantha C.</mods:namePart>
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<mods:affiliation>Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand & CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China & World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan, China & Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming 650201, Yunnan, China & Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand</mods:affiliation>
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<mods:nameIdentifier type="orcid">https://orcid.org/0000-0001-7080-0781</mods:nameIdentifier>
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<mods:nameIdentifier type="email">samanthakarunarathna@gmail.com</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>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>71</mods:number>
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||
</mods:detail>
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<mods:extent unit="page">
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<mods:start>101</mods:start>
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<mods:end>118</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.71.55493</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.71.55493</mods:identifier>
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||
<mods:identifier type="Pensoft-Pub">1314-4049-71-101</mods:identifier>
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<mods:identifier type="Pensoft-UUID">7E8A23654FC554FFB834AA47B120E551</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="166095974" LSID="urn:lsid:plazi:treatment:7BDFC66F963652E88C6FAC016DFBC029" httpUri="http://treatment.plazi.org/id/7BDFC66F963652E88C6FAC016DFBC029" lastPageId="6" lastPageNumber="107" pageId="5" pageNumber="106">
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||
<subSubSection pageId="5" pageNumber="106" type="nomenclature">
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<paragraph pageId="5" pageNumber="106">
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<taxonomicName LSID="7BDFC66F-9636-52E8-8C6F-AC016DFBC029" authority="Samarakoon, Chomnunti & K. D. Hyde" authorityName="Samarakoon, Chomnunti & K. D. Hyde" authorityYear="2020" class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium musae" order="Pleosporales" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="musae" status="sp. nov.">Dictyoarthrinium musae Samarakoon, Chomnunti & K.D. Hyde</taxonomicName>
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<taxonomicNameLabel pageId="5" pageNumber="106">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Dictyoarthrinium musae (MFLU 20 - 0437, holotype) a conidia on the host b conidiophore and conidia with conidiophore mother cell c-f conidia with conidiophores on stalk g developmental stage of an immature lateral conidium h four-celled terminal conidium i conidiophore j conidiophores and conidia with terminal conidium k, l conidiophores without terminal conidium m attachment of a mature lateral conidium n-q warted four-celled mature conidia r, s mature conidia that split at septa t colony on PDA after 21 days. Scale bars: 500 μm (a); 50 μm (b, c); 20 μm (d-g, i); 10 μm (h); 5 μm (j-s)." figureDoi="10.3897/mycokeys.71.55493.figure2" httpUri="https://binary.pensoft.net/fig/439497" pageId="5" pageNumber="106">Figure 2</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="106" type="etymology">
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<paragraph pageId="5" pageNumber="106">Etymology.</paragraph>
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<paragraph pageId="5" pageNumber="106">
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Name reflects the host genus,
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<taxonomicName class="Liliopsida" family="Musaceae" genus="Musa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Musa" order="Zingiberales" pageId="5" pageNumber="106" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="106">Musa</emphasis>
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</taxonomicName>
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(
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<taxonomicName family="Musaceae" lsidName="" pageId="5" pageNumber="106" rank="family">Musaceae</taxonomicName>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="106" type="holotype">
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<paragraph pageId="5" pageNumber="106">Holotype.</paragraph>
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<paragraph pageId="5" pageNumber="106">MFLU 20-0437</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="106" type="description">
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<paragraph pageId="5" pageNumber="106">Description.</paragraph>
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<paragraph pageId="5" pageNumber="106">
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<emphasis italics="true" pageId="5" pageNumber="106">Saprobic</emphasis>
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on dead leaves of
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<taxonomicName class="Liliopsida" family="Musaceae" genus="Musa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Musa" order="Zingiberales" pageId="5" pageNumber="106" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="106">Musa</emphasis>
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</taxonomicName>
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sp.
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<emphasis bold="true" pageId="5" pageNumber="106">Sexual morph</emphasis>
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: Undetermined.
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<emphasis bold="true" pageId="5" pageNumber="106">Asexual morph</emphasis>
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:
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<emphasis italics="true" pageId="5" pageNumber="106">Colonies</emphasis>
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compact or effuse, black, often pulvinate.
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<emphasis italics="true" pageId="5" pageNumber="106">Mycelium</emphasis>
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superficial, a close network of branched and anastomosing hyphae.
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<emphasis italics="true" pageId="5" pageNumber="106">Stromata</emphasis>
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none.
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<emphasis italics="true" pageId="5" pageNumber="106">Setae</emphasis>
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and
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<emphasis italics="true" pageId="5" pageNumber="106">hyphopodia</emphasis>
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absent.
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<emphasis italics="true" pageId="5" pageNumber="106">Conidiophores</emphasis>
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30-140
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<normalizedToken originalValue="×">x</normalizedToken>
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1-2
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(x¯ 81.5
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<normalizedToken originalValue="×">x</normalizedToken>
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1.6
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, n = 25), basauxic, arising usually singly from subspherical, subhyaline to light brown conidiophore mother cells, 4.5-4.8
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<normalizedToken originalValue="×">x</normalizedToken>
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4.3-4.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(x̄ = 4.6
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<normalizedToken originalValue="×">x</normalizedToken>
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4.4
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, n = 10), macronematous, mononematous, straight or flexuous, narrow, cylindrical, rough, subhyaline to pale brown, with thick brown or dark brown transverse septa that appear as stripes with distances of 6.3-5.8
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<normalizedToken originalValue="μm">μm</normalizedToken>
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at apex and 2.3-3
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<normalizedToken originalValue="μm">μm</normalizedToken>
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at base of the conidiophore.
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<emphasis italics="true" pageId="5" pageNumber="106">Conidiogenous cells</emphasis>
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4.1-4.5
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<normalizedToken originalValue="×">x</normalizedToken>
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4.3-4.7
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(x̄ = 4.4
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<normalizedToken originalValue="×">x</normalizedToken>
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4.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, n = 10), blastic, integrated, terminal and intercalary, cylindrical, smooth, denticles absent, hyaline.
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<emphasis italics="true" pageId="5" pageNumber="106">Conidia</emphasis>
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7-11.5
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<normalizedToken originalValue="×">x</normalizedToken>
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6.5-9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(x̄ = 8.7
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<normalizedToken originalValue="×">x</normalizedToken>
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7.9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, n = 40), solitary, dry, acropleurogenous, simple, square, rounded at the corners, 4-celled, spherical or subspherical, often flattened in one plane, pale to dark brown at maturity, verrucose, with light brown to dark brown warts, immature conidia often 1-celled and subhyaline. Terminal conidium with four cells, sometimes absent or fallen before lateral conidia, mature conidia split along one line of the septa, most conidia arranged obliquely downwards on the conidiophore, conidial formation observed as a bunch starting after conidiophore 1-3 septate.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="106" type="description">
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<paragraph pageId="5" pageNumber="106">Culture characteristics.</paragraph>
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<paragraph pageId="5" pageNumber="106">Conidia germinating on PDA within 18 hrs. Colonies on PDA reaching a diameter of 50 mm after 14 days at 25 °C, slightly raised, hairy, filamentous, moderately dense, middle light grey, periphery white; reverse white to greyish-white.</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="106" type="materials_examined">
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<paragraph pageId="5" pageNumber="106">Material examined.</paragraph>
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<paragraph pageId="5" pageNumber="106">
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THAILAND. Chiang Rai. On dead leaves of
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<taxonomicName class="Liliopsida" family="Musaceae" genus="Musa" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Musa" order="Zingiberales" pageId="5" pageNumber="106" phylum="Tracheophyta" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="106">Musa</emphasis>
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</taxonomicName>
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sp. (
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<taxonomicName family="Musaceae" lsidName="" pageId="5" pageNumber="106" rank="family">Musaceae</taxonomicName>
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), 7 December 2018, M. C. Samarakoon, BNS265 (MFLU 20-0437,
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<emphasis bold="true" italics="true" pageId="5" pageNumber="106">holotype</emphasis>
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), ex-type living culture (MFLUCC 20-0105);
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<emphasis italics="true" pageId="5" pageNumber="106">ibid</emphasis>
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. 20 February 2019, B. C. Samarakoon BNS2239 (MFLU 20-0438,
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<emphasis bold="true" italics="true" pageId="5" pageNumber="106">paratype</emphasis>
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), ex-paratype living culture (MFLUCC 20-0106).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="107" pageId="5" pageNumber="106" type="notes">
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<paragraph pageId="5" pageNumber="106">Notes.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="107" pageId="5" pageNumber="106">
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Based on BLAST search results of SSU, LSU, ITS and
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<emphasis italics="true" pageId="5" pageNumber="106">tef</emphasis>
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1-α sequence data,
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<taxonomicName authorityName="Samarakoon, Chomnunti & K. D. Hyde" authorityYear="2020" class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium musae" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="musae">
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<emphasis italics="true" pageId="5" pageNumber="106">Dictyoarthrinium musae</emphasis>
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</taxonomicName>
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(MFLUCC 20-0105 and MFLUCC 20-0106) showed high similarity as follows: SSU = 99.15% to
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<taxonomicName authorityName="Damm, Crous & Verkley" authorityYear="2008" baseAuthorityName="Crous" class="Dothideomycetes" family="Didymosphaeriaceae" genus="Paraconiothyrium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Paraconiothyrium hawaiiense" order="Pleosporales" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="hawaiiense">
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<emphasis italics="true" pageId="5" pageNumber="106">Paraconiothyrium hawaiiense</emphasis>
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</taxonomicName>
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(CBS 120025), LSU = 95.57% to
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<taxonomicName authorityName="Jayasiri, E. B. G. Jones & K. D. Hyde" authorityYear="2019" class="Dothideomycetes" family="Didymosphaeriaceae" genus="Cylindroaseptospora" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cylindroaseptospora siamensis" order="Pleosporales" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="siamensis">
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<emphasis italics="true" pageId="5" pageNumber="106">Cylindroaseptospora siamensis</emphasis>
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</taxonomicName>
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(MFLUCC 17-2527), ITS = 98.24% to
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<taxonomicName authorityName="Thambug, Camporesi & K. D. Hyde" authorityYear="2015" class="Dothideomycetes" family="Didymosphaeriaceae" genus="Kalmusia" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Kalmusia italica" order="Pleosporales" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="italica">
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<emphasis italics="true" pageId="5" pageNumber="106">Kalmusia italica</emphasis>
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</taxonomicName>
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(isolate 5),
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<emphasis italics="true" pageId="5" pageNumber="106">tef</emphasis>
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1-α = 97.75% to
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<taxonomicName authorityName="Thambug & K. D. Hyde" authorityYear="2017" class="Sordariomycetes" family="Apiosporaceae" genus="Spegazzinia" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Spegazzinia neosundara" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="neosundara">
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<emphasis italics="true" pageId="5" pageNumber="106">Spegazzinia neosundara</emphasis>
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</taxonomicName>
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(MFLUCC 13-0211) with 100%, 100%, 87% and 99% query covers, respectively. In the multigene phylogeny, the
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<taxonomicName class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium" pageId="5" pageNumber="106" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="106">Dictyoarthrinium</emphasis>
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</taxonomicName>
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clade was sister to
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<taxonomicName class="Dothideomycetes" family="Microthyriaceae" genus="Spegazzinia" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Spegazzinia" order="Microthyriales" pageId="5" pageNumber="106" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="106">Spegazzinia</emphasis>
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</taxonomicName>
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(ML = 75%, BYPP = 0.98). Within the
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<taxonomicName class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium" pageId="5" pageNumber="106" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="5" pageNumber="106">Dictyoarthrinium</emphasis>
|
||
</taxonomicName>
|
||
clade,
|
||
<taxonomicName lsidName="D. musae" pageId="5" pageNumber="106" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">D. musae</emphasis>
|
||
</taxonomicName>
|
||
(MFLUCC 20-0105 and MFLUCC 20-0106) separated from the sister taxon,
|
||
<taxonomicName lsidName="D. sacchari" pageId="5" pageNumber="106" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
with strong statistical support (ML = 100%, BYPP = 1.00). ITS sequence comparison revealed 7.84% base pair differences between
|
||
<taxonomicName lsidName="D. musae" pageId="5" pageNumber="106" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">D. musae</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="D. sacchari" pageId="5" pageNumber="106" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
(MFLUCC 20-0107), which is in agreement with the new species concept outlined by
|
||
<bibRefCitation DOI="https://doi.org/10.5943/mycosphere/7/11/4" author="Jeewon, R" journalOrPublisher="Mycosphere" pageId="13" pageNumber="114" pagination="1669 - 1677" refId="B21" refString="Jeewon, R, Hyde, KD, 2016. Establishing species boundaries and new taxa among fungi: recommendations to resolve taxonomic ambiguities. Mycosphere 7: 1669 - 1677, DOI: https://doi.org/10.5943/mycosphere/7/11/4" title="Establishing species boundaries and new taxa among fungi: recommendations to resolve taxonomic ambiguities." url="https://doi.org/10.5943/mycosphere/7/11/4" volume="7" year="2016">Jeewon and Hyde (2016)</bibRefCitation>
|
||
.
|
||
<taxonomicName authorityName="Samarakoon, Chomnunti & K. D. Hyde" authorityYear="2020" class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium musae" pageId="5" pageNumber="106" phylum="Ascomycota" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">Dictyoarthrinium musae</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName lsidName="D. sacchari" pageId="5" pageNumber="106" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
by its unique conidial development in the apex. The terminal conidia of
|
||
<taxonomicName lsidName="D. musae" pageId="5" pageNumber="106" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="5" pageNumber="106">D. musae</emphasis>
|
||
</taxonomicName>
|
||
are always 4-celled and similar in colour
|
||
<pageBreakToken pageId="6" pageNumber="107" start="start">to</pageBreakToken>
|
||
mature lateral conidia. In addition, the terminal conidia of
|
||
<taxonomicName lsidName="D. musae" pageId="6" pageNumber="107" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. musae</emphasis>
|
||
</taxonomicName>
|
||
are sometimes absent or fallen before the lateral conidia. In contrast, the terminal conidia of
|
||
<taxonomicName lsidName="D. sacchari" pageId="6" pageNumber="107" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
can be 2-celled or 4-celled, pale brown with respect to lateral mature conidia and always persist on the conidiophore. In addition, the mature conidia of
|
||
<taxonomicName lsidName="D. musae" pageId="6" pageNumber="107" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. musae</emphasis>
|
||
</taxonomicName>
|
||
split along one line of the septa and this specific feature is absent in
|
||
<taxonomicName lsidName="D. sacchari" pageId="6" pageNumber="107" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName authorityName="Samarakoon, Chomnunti & K. D. Hyde" authorityYear="2020" class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium musae" pageId="6" pageNumber="107" phylum="Ascomycota" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">Dictyoarthrinium musae</emphasis>
|
||
</taxonomicName>
|
||
has a subhyaline, spherical conidiophore mother cell while
|
||
<taxonomicName lsidName="D. sacchari" pageId="6" pageNumber="107" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
has a distinct cup-shaped, brown conidiophore mother cell. Therefore, based on contrasting morphological differences to
|
||
<taxonomicName lsidName="D. sacchari" pageId="6" pageNumber="107" rank="species" species="sacchari">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. sacchari</emphasis>
|
||
</taxonomicName>
|
||
and strong statistical support from our molecular phylogeny,
|
||
<taxonomicName lsidName="D. musae" pageId="6" pageNumber="107" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">D. musae</emphasis>
|
||
</taxonomicName>
|
||
is herein introduced as a new species.
|
||
</paragraph>
|
||
<caption doi="10.3897/mycokeys.71.55493.figure2" httpUri="https://binary.pensoft.net/fig/439497" pageId="6" pageNumber="107" start="Figure 2" startId="F2">
|
||
<paragraph pageId="6" pageNumber="107">
|
||
<emphasis bold="true" pageId="6" pageNumber="107">Figure 2.</emphasis>
|
||
<taxonomicName authorityName="Samarakoon, Chomnunti & K. D. Hyde" authorityYear="2020" class="Sordariomycetes" family="Apiosporaceae" genus="Dictyoarthrinium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Dictyoarthrinium musae" pageId="6" pageNumber="107" phylum="Ascomycota" rank="species" species="musae">
|
||
<emphasis italics="true" pageId="6" pageNumber="107">Dictyoarthrinium musae</emphasis>
|
||
</taxonomicName>
|
||
(MFLU 20-0437, holotype)
|
||
<emphasis bold="true" pageId="6" pageNumber="107">a</emphasis>
|
||
conidia on the host
|
||
<emphasis bold="true" pageId="6" pageNumber="107">b</emphasis>
|
||
conidiophore and conidia with conidiophore mother cell
|
||
<emphasis bold="true" pageId="6" pageNumber="107">c-f</emphasis>
|
||
conidia with conidiophores on stalk
|
||
<emphasis bold="true" pageId="6" pageNumber="107">g</emphasis>
|
||
developmental stage of an immature lateral conidium
|
||
<emphasis bold="true" pageId="6" pageNumber="107">h</emphasis>
|
||
four-celled terminal conidium
|
||
<emphasis bold="true" pageId="6" pageNumber="107">i</emphasis>
|
||
conidiophore
|
||
<emphasis bold="true" pageId="6" pageNumber="107">j</emphasis>
|
||
conidiophores and conidia with terminal conidium
|
||
<emphasis bold="true" pageId="6" pageNumber="107">k, l</emphasis>
|
||
conidiophores without terminal conidium
|
||
<emphasis bold="true" pageId="6" pageNumber="107">m</emphasis>
|
||
attachment of a mature lateral conidium
|
||
<emphasis bold="true" pageId="6" pageNumber="107">n-q</emphasis>
|
||
warted four-celled mature conidia
|
||
<emphasis bold="true" pageId="6" pageNumber="107">r, s</emphasis>
|
||
mature conidia that split at septa
|
||
<emphasis bold="true" pageId="6" pageNumber="107">t</emphasis>
|
||
colony on PDA after 21 days. Scale bars: 500
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="6" pageNumber="107">a</emphasis>
|
||
); 50
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="6" pageNumber="107">b, c</emphasis>
|
||
); 20
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="6" pageNumber="107">d-g, i</emphasis>
|
||
); 10
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="6" pageNumber="107">h</emphasis>
|
||
); 5
|
||
<normalizedToken originalValue="μm">μm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="6" pageNumber="107">j-s</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |