208 lines
16 KiB
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208 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.65.47704" ID-GBIF-Dataset="00685a01-0785-47ec-aa0b-77c991ee4b08" ID-PMC="PMC7078340" ID-Pensoft-Pub="1314-4049-65-49" ID-Pensoft-UUID="DED2BF86E6FD56179642F7119604CEB9" ID-PubMed="32206025" ModsDocID="1314-4049-65-49" checkinTime="1583860301782" checkinUser="pensoft" docAuthor="Hou, Lingwei, Hernandez-Restrepo, Margarita, Groenewald, Johannes Zacharias, Cai, Lei & Crous, Pedro W." docDate="2020" docId="9A0B388071A9571A9B1AA7E1D9F5BF6E" docLanguage="en" docName="MycoKeys 65: 49-99" docOrigin="MycoKeys 65" docSource="http://dx.doi.org/10.3897/mycokeys.65.47704" docTitle="Xenodidymella weymaniae Hern. - Restr., L. W. Hou, L. Cai & Crous 2020, sp. nov." docType="treatment" docVersion="4" id="DED2BF86E6FD56179642F7119604CEB9" lastPageNumber="49" masterDocId="DED2BF86E6FD56179642F7119604CEB9" masterDocTitle="Citizen science project reveals high diversity in Didymellaceae (Pleosporales, Dothideomycetes)" masterLastPageNumber="99" masterPageNumber="49" pageNumber="49" updateTime="1668136425574" 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>Citizen science project reveals high diversity in Didymellaceae (Pleosporales, Dothideomycetes)</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>Hou, Lingwei</mods:namePart>
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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>Hernandez-Restrepo, Margarita</mods:namePart>
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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>Groenewald, Johannes Zacharias</mods:namePart>
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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>Cai, Lei</mods:namePart>
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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>Crous, Pedro W.</mods:namePart>
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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>65</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>49</mods:start>
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<mods:end>99</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.65.47704</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.65.47704</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-65-49</mods:identifier>
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<mods:identifier type="Pensoft-UUID">DED2BF86E6FD56179642F7119604CEB9</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="162481718" LSID="urn:lsid:plazi:treatment:9A0B388071A9571A9B1AA7E1D9F5BF6E" httpUri="http://treatment.plazi.org/id/9A0B388071A9571A9B1AA7E1D9F5BF6E" lastPageNumber="49" pageId="0" pageNumber="49">
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<subSubSection pageId="0" pageNumber="49" type="nomenclature">
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<paragraph pageId="0" pageNumber="49">
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<taxonomicName LSID="9A0B3880-71A9-571A-9B1A-A7E1D9F5BF6E" authority="Hern. - Restr., L. W. Hou, L. Cai & Crous" authorityName="Hern. - Restr., L. W. Hou, L. Cai & Crous" authorityYear="2020" class="Dothideomycetes" family="Didymellaceae" genus="Xenodidymella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xenodidymella weymaniae" order="Pleosporales" pageId="0" pageNumber="49" phylum="Ascomycota" rank="species" species="weymaniae" status="sp. nov.">Xenodidymella weymaniae Hern.-Restr., L. W. Hou, L. Cai & Crous</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="49">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Xenodidymella weymaniae (CBS 144960). A, B Colony on OA (front and reverse) C, D colony on MEA (front and reverse) E, F colony on PDA (front and reverse) G, H pycnidia forming on OA I, J section of pycnidial wall K-N conidiogenous cells O conidia. Scale bars: 50 μm (H); 20 μm (I); 10 μm (J); 5 μm (K-O)." figureDoi="10.3897/mycokeys.65.47704.figure13" httpUri="https://binary.pensoft.net/fig/388216" pageId="0" pageNumber="49">Figure 13</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="49" type="etymology">
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<paragraph pageId="0" pageNumber="49">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="49">
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<emphasis italics="true" pageId="0" pageNumber="49">weymaniae</emphasis>
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refers to Anna Weyman who collected the soil sample from which the ex-type strain was isolated.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="49" type="typus">
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<paragraph pageId="0" pageNumber="49">Typus.</paragraph>
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<paragraph pageId="0" pageNumber="49">
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The Netherlands. Utrecht province, Baarn, isolated from garden soil, Mar. 2017, A. Weyman (
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<emphasis bold="true" italics="true" pageId="0" pageNumber="49">holotype</emphasis>
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designated here CBS H-24113; living ex-type culture CBS 144960 = JW 201005).
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</paragraph>
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<paragraph pageId="0" pageNumber="49">
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<emphasis italics="true" pageId="0" pageNumber="49">Conidiomata</emphasis>
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pycnidial, semi-immersed on the agar, mostly confluent, sometimes solitary, scattered or aggregated, subglobose or ellipsoidal, irregularly-shaped when confluent, dark brown, ostiolate, glabrous or with long hyphal outgrowths around the ostiole, 100-700
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<normalizedToken originalValue="×">x</normalizedToken>
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100-400(-590)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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; with 1-2(-6) ostioles, papillate or elongated into a long neck, up to 113
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<normalizedToken originalValue="μm">μm</normalizedToken>
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in length; pycnidial wall pseudoparenchymatous, 3-5 layers, 17-45
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<normalizedToken originalValue="μm">μm</normalizedToken>
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thick, outer layers composed of pale brown to brown, flattened polygonal cells of 10-35
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<normalizedToken originalValue="μm">μm</normalizedToken>
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diam.
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<emphasis italics="true" pageId="0" pageNumber="49">Conidiogenous cells</emphasis>
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phialidic, hyaline, smooth, sub-globose, ampulliform or lageniform, 4.5-8
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<normalizedToken originalValue="×">x</normalizedToken>
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4-6.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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.
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<emphasis italics="true" pageId="0" pageNumber="49">Conidia</emphasis>
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oblong, smooth- and thin-walled, hyaline, aseptate, 4-6(-8)
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<normalizedToken originalValue="×">x</normalizedToken>
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2-2.5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, with two small, polar guttules.
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<taxonomicName genus="Conidial" lsidName="Conidial matrix" pageId="0" pageNumber="49" rank="species" species="matrix">
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<emphasis italics="true" pageId="0" pageNumber="49">Conidial matrix</emphasis>
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</taxonomicName>
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whitish.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="49" type="description">
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<paragraph pageId="0" pageNumber="49">Culture characteristics.</paragraph>
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<paragraph pageId="0" pageNumber="49">Colonies after 7 d at 25 °C, on OA reaching 55-60 mm diam, aerial mycelium floccose near the centre, flat towards the periphery, pale olivaceous to whitish, black pycnidia visible near the centre, margin regular; reverse buff to salmon, pale olivaceous towards the periphery. On MEA reaching 40-45 mm diam, aerial mycelium felty, sectors with cottony mycelium, white, buff to pale olivaceous, margin regular; reverse yellow to orange, dark brown and pale grey near the centre. On PDA reaching 45-60 mm, aerial mycelium floccose, whitish in the centre, honey towards the periphery, margin regular; reverse concentric circles dark brown in centre, orange, yellow, buff towards the periphery. NaOH spot test negative on OA.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="49" type="notes">
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<paragraph pageId="0" pageNumber="49">Notes.</paragraph>
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<paragraph pageId="0" pageNumber="49">
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<taxonomicName authorityName="Hern. - Restr., L. W. Hou, L. Cai & Crous" authorityYear="2020" class="Dothideomycetes" family="Didymellaceae" genus="Xenodidymella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xenodidymella weymaniae" order="Pleosporales" pageId="0" pageNumber="49" phylum="Ascomycota" rank="species" species="weymaniae">
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<emphasis italics="true" pageId="0" pageNumber="49">Xenodidymella weymaniae</emphasis>
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</taxonomicName>
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formed a distinct branch basal to
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<taxonomicName lsidName="X. applanata" pageId="0" pageNumber="49" rank="species" species="applanata">
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<emphasis italics="true" pageId="0" pageNumber="49">X. applanata</emphasis>
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</taxonomicName>
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(Figure
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Phylogenetic tree generated from the maximum-likelihood analysis based on the combined ITS, LSU, tub 2 and rpb 2 sequence alignment of Didymellaceae members. The RAxML bootstrap support values (BS), Bayesian posterior probabilities (PP), and parsimony bootstrap support values (PBS) are given at the nodes (BS / PP / PBS). BS and PBS values represent parsimony bootstrap support values> 50 %. Full supported branches are indicated in bold. The scale bar represents the expected number of changes per site. Ex-type strains are represented in bold. Strains obtained in the current study are printed in green; among them, whilst strains that represent new taxa are printed in red. Some of the basal branches were shortened to facilitate layout (the fraction in round parentheses refers to the presented length compared to the actual length of the branch). The tree was rooted to Coniothyrium palmarum CBS 400.71 and Leptosphaeria doliolum CBS 505.75." figureDoi="10.3897/mycokeys.65.47704.figure1" httpUri="https://binary.pensoft.net/fig/388204" pageId="0" pageNumber="49">1</figureCitation>
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). Morphologically,
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<taxonomicName lsidName="X. weymaniae" pageId="0" pageNumber="49" rank="species" species="weymaniae">
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<emphasis italics="true" pageId="0" pageNumber="49">X. weymaniae</emphasis>
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</taxonomicName>
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could be clearly differentiated from
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<taxonomicName lsidName="X. applanata" pageId="0" pageNumber="49" rank="species" species="applanata">
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<emphasis italics="true" pageId="0" pageNumber="49">X. applanata</emphasis>
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</taxonomicName>
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in pycnidial and conidial characteristics. In
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<taxonomicName lsidName="X. weymaniae" pageId="0" pageNumber="49" rank="species" species="weymaniae">
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<emphasis italics="true" pageId="0" pageNumber="49">X. weymaniae</emphasis>
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</taxonomicName>
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pycnidia are dark brown, ostioles have elongated necks, 100-700
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<normalizedToken originalValue="×">x</normalizedToken>
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100-400(-590)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, and conidia are oblong, with 2 small polar guttules. In
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<taxonomicName lsidName="X. applanata" pageId="0" pageNumber="49" rank="species" species="applanata">
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<emphasis italics="true" pageId="0" pageNumber="49">X. applanata</emphasis>
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</taxonomicName>
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pycnidia are pale brown, with single, slightly papillate ostioles, 85-175
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<normalizedToken originalValue="×">x</normalizedToken>
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60-145
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, and ellipsoidal to ovoid conidia, with several guttules (
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<bibRefCitation DOI="https://doi.org/10.1016/j.simyco.2015.10.003" author="Chen, Q" journalOrPublisher="Studies in Mycology" pageId="0" pageNumber="49" pagination="137 - 217" refId="B15" refString="Chen, Q, Jiang, JR, Zhang, GZ, Cai, L, Crous, PW, 2015. Resolving the Phoma enigma. Studies in Mycology 82: 137 - 217, DOI: https://doi.org/10.1016/j.simyco.2015.10.003" title="Resolving the Phoma enigma." url="https://doi.org/10.1016/j.simyco.2015.10.003" volume="82" year="2015">Chen et al. 2015</bibRefCitation>
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). Furthermore, the two species can also be distinguished from the NaOH spot test on OA medium (negative vs. pale reddish discoloration). This is the first record of a
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<taxonomicName authorityName="Q.T.Chen & L.Cai" authorityYear="2015" class="Dothideomycetes" family="Didymellaceae" genus="Xenodidymella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xenodidymella" order="Pleosporales" pageId="0" pageNumber="49" phylum="Ascomycota" rank="genus">
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<emphasis italics="true" pageId="0" pageNumber="49">Xenodidymella</emphasis>
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</taxonomicName>
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species isolated from soil (
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<bibRefCitation DOI="https://doi.org/10.1079/9780851997438.0000" author="Boerema, GH" journalOrPublisher="Persoonia" pageId="0" pageNumber="49" refId="B10" refString="Boerema, GH, de Gruyter, J, Noordeloos, ME, Hamers, MEC, 2004. Phoma identification manual. Differentiation of specific and infra-specific taxa in culture. CABI Publishing, 1-467. https://doi.org/10.1079/9780851997438.0000" title="Phoma identification manual. Differentiation of specific and infra-specific taxa in culture. CABI Publishing, 1 - 467." url="https://doi.org/10.1079/9780851997438.0000" year="2004">Boerema et al. 2004</bibRefCitation>
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;
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<bibRefCitation DOI="https://doi.org/10.1016/j.simyco.2015.10.003" author="Chen, Q" journalOrPublisher="Studies in Mycology" pageId="0" pageNumber="49" pagination="137 - 217" refId="B15" refString="Chen, Q, Jiang, JR, Zhang, GZ, Cai, L, Crous, PW, 2015. Resolving the Phoma enigma. Studies in Mycology 82: 137 - 217, DOI: https://doi.org/10.1016/j.simyco.2015.10.003" title="Resolving the Phoma enigma." url="https://doi.org/10.1016/j.simyco.2015.10.003" volume="82" year="2015">Chen et al. 2015</bibRefCitation>
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,
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<bibRefCitation DOI="https://doi.org/10.1016/j.simyco.2017.06.002" author="Chen, Q" journalOrPublisher="Studies in Mycology" pageId="0" pageNumber="49" pagination="105 - 159" refId="B14" refString="Chen, Q, Hou, LW, Duan, WJ, Crous, PW, Cai, L, 2017. Didymellaceae revisited. Studies in Mycology 87: 105 - 159, DOI: https://doi.org/10.1016/j.simyco.2017.06.002" title="Didymellaceae revisited." url="https://doi.org/10.1016/j.simyco.2017.06.002" volume="87" year="2017">2017</bibRefCitation>
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).
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</paragraph>
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<caption doi="10.3897/mycokeys.65.47704.figure13" httpUri="https://binary.pensoft.net/fig/388216" pageId="0" pageNumber="49" start="Figure 13" startId="F13">
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<paragraph pageId="0" pageNumber="49">
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<emphasis bold="true" pageId="0" pageNumber="49">Figure 13.</emphasis>
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<taxonomicName authorityName="Hern. - Restr., L. W. Hou, L. Cai & Crous" authorityYear="2020" class="Dothideomycetes" family="Didymellaceae" genus="Xenodidymella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xenodidymella weymaniae" order="Pleosporales" pageId="0" pageNumber="49" phylum="Ascomycota" rank="species" species="weymaniae">
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<emphasis italics="true" pageId="0" pageNumber="49">Xenodidymella weymaniae</emphasis>
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</taxonomicName>
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(CBS 144960).
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<emphasis bold="true" pageId="0" pageNumber="49">A, B</emphasis>
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Colony on OA (front and reverse)
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<emphasis bold="true" pageId="0" pageNumber="49">C, D</emphasis>
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colony on MEA (front and reverse)
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<emphasis bold="true" pageId="0" pageNumber="49">E, F</emphasis>
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colony on PDA (front and reverse)
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<emphasis bold="true" pageId="0" pageNumber="49">G, H</emphasis>
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pycnidia forming on OA
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<emphasis bold="true" pageId="0" pageNumber="49">I, J</emphasis>
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section of pycnidial wall
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<emphasis bold="true" pageId="0" pageNumber="49">K-N</emphasis>
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conidiogenous cells
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<emphasis bold="true" pageId="0" pageNumber="49">O</emphasis>
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conidia. Scale bars: 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="49">H</emphasis>
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); 20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="49">I</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="49">J</emphasis>
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); 5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="49">K-O</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> |