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<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.63.46836" ID-GBIF-Dataset="aa88aeb1-af63-44e6-9d0a-8be4d245c854" ID-PMC="PMC7062850" ID-Pensoft-Pub="1314-4049-63-119" ID-Pensoft-UUID="4883853FD1F251EEBFD883FEAFEEB58D" ID-PubMed="32189979" ModsDocID="1314-4049-63-119" checkinTime="1583231401279" checkinUser="pensoft" docAuthor="Bien, Steffen &amp; Damm, Ulrike" docDate="2020" docId="791C323D83BE53F6BDE3AB1D84DA51E9" docLanguage="en" docName="MycoKeys 63: 119-161" docOrigin="MycoKeys 63" docSource="http://dx.doi.org/10.3897/mycokeys.63.46836" docTitle="Proliferodiscus Bien &amp; Damm 2020, sp." docType="treatment" docVersion="4" id="4883853FD1F251EEBFD883FEAFEEB58D" lastPageNumber="119" masterDocId="4883853FD1F251EEBFD883FEAFEEB58D" masterDocTitle="Arboricolonus simplex gen. et sp. nov. and novelties in Cadophora, Minutiella and Proliferodiscus from Prunus wood in Germany" masterLastPageNumber="161" masterPageNumber="119" pageNumber="119" updateTime="1668136386344" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Arboricolonus simplex gen. et sp. nov. and novelties in Cadophora, Minutiella and Proliferodiscus from Prunus wood in Germany</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Bien, Steffen</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Damm, Ulrike</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
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<mods:titleInfo>
<mods:title>MycoKeys</mods:title>
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<mods:part>
<mods:date>2020</mods:date>
<mods:detail type="volume">
<mods:number>63</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>119</mods:start>
<mods:end>161</mods:end>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/mycokeys.63.46836</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.63.46836</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-4049-63-119</mods:identifier>
<mods:identifier type="Pensoft-UUID">4883853FD1F251EEBFD883FEAFEEB58D</mods:identifier>
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<treatment ID-GBIF-Taxon="162381259" LSID="urn:lsid:plazi:treatment:791C323D83BE53F6BDE3AB1D84DA51E9" httpUri="http://treatment.plazi.org/id/791C323D83BE53F6BDE3AB1D84DA51E9" lastPageNumber="119" pageId="0" pageNumber="119">
<subSubSection pageId="0" pageNumber="119" type="nomenclature">
<paragraph pageId="0" pageNumber="119">
<taxonomicName LSID="791C323D-83BE-53F6-BDE3-AB1D84DA51E9" authority="Bien &amp; Damm, 2020" authorityName="Bien &amp; Damm" authorityYear="2020" class="Leotiomycetes" family="Hyaloscyphaceae" genus="Proliferodiscus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Proliferodiscus" order="Helotiales" pageId="0" pageNumber="119" phylum="Ascomycota" rank="genus" status="sp.">Proliferodiscus</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="119">sp.</taxonomicNameLabel>
<figureCitation captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Colony surface of analysed strains on OA medium. A Arboricolonus simplex GLMC 459 T B Cadophora africana CBS 120890 T C C. bubakii CBS 198.30 T D C. luteo-olivacea GLMC 1264 E C. novi-eboraci GLMC 1472 F C. obscura CBS 269.33 G C. prunicola CBS 120891 T H C. prunicola GLMC 1633 I C. ramosa GLMC 377 T J Minutiella pruni-avium GLMC 1624 T K Proliferodiscus ingens GLMC 1751 T L Proliferodiscus sp. GLMC 460. Cultures A, J-L after 4 wk. Cultures B-I after 2 wk. Strains with a superscript T are ex-type cultures." figureDoi="10.3897/mycokeys.63.46836.figure5" httpUri="https://binary.pensoft.net/fig/385039" pageId="0" pageNumber="119">Figures 5L</figureCitation>
<figureCitation captionStart="Figure 16" captionStartId="F16" captionText="Figure 16. Proliferodiscus sp. A conidiomata B conidia formed in conidiomata C-F, I-J conidiogenous cells lining the inner wall of a conidioma G, H detached conidiogenous cells H-J extensions on conidiogenous cells A-J from OA A SM B-J LM. Scale bars: 300 μm (A), 5 μm (B applies to C-J)." figureDoi="10.3897/mycokeys.63.46836.figure16" httpUri="https://binary.pensoft.net/fig/385050" pageId="0" pageNumber="119">, 16</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="119" type="description">
<paragraph pageId="0" pageNumber="119">Description.</paragraph>
<paragraph pageId="0" pageNumber="119">
<emphasis italics="true" pageId="0" pageNumber="119">Sexual morph</emphasis>
not observed.
<emphasis italics="true" pageId="0" pageNumber="119">Asexual morph on OA. Vegetative hyphae</emphasis>
hyaline, smooth-walled, septate, branched, 1.5-3
<normalizedToken originalValue="μm">μm</normalizedToken>
wide, lacking chlamydospores.
<emphasis italics="true" pageId="0" pageNumber="119">Sporulation</emphasis>
abundant, conidia formed in conidiomata.
<emphasis italics="true" pageId="0" pageNumber="119">Conidiomata</emphasis>
produced on OA, SNA and pine needles in 2-4 wk, solitary or aggregated, subglobose, unilocular, superficial, 125-500
<normalizedToken originalValue="μm">μm</normalizedToken>
wide, luteous, almost glabrous to completely covered with hairs, opening with an irregular rupture.
<emphasis italics="true" pageId="0" pageNumber="119">Conidiophores</emphasis>
hyaline, smooth-walled, septate, simple or branched, conidiogenous loci formed terminally.
<emphasis italics="true" pageId="0" pageNumber="119">Conidiogenus cells</emphasis>
enteroblastic, hyaline, smooth-walled, navicular to subulate, tapering towards apices, 9-14
<normalizedToken originalValue="×">x</normalizedToken>
1-2
<normalizedToken originalValue="μm">μm</normalizedToken>
, collarettes cylindrical, &lt;1
<normalizedToken originalValue="μm">μm</normalizedToken>
long, opening 0.5-1
<normalizedToken originalValue="μm">μm</normalizedToken>
, periclinal thickening sometimes visible, conidiogenous cells often extend to form new conidiogenous openings, extensions flask-shaped to navicular.
<emphasis italics="true" pageId="0" pageNumber="119">Conidia</emphasis>
hyaline, smooth-walled, aseptate, mostly globose to obovoid, sometimes cylindrical to ellipsoidal, straight, with both ends rounded, 1.5-2(-3)
<normalizedToken originalValue="×">x</normalizedToken>
1.5(-2)
<normalizedToken originalValue="μm">μm</normalizedToken>
, mean
<normalizedToken originalValue="±">+/-</normalizedToken>
SD = 1.9
<normalizedToken originalValue="±">+/-</normalizedToken>
0.3
<normalizedToken originalValue="×">x</normalizedToken>
1.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.1
<normalizedToken originalValue="μm">μm</normalizedToken>
, L/W ratio = 1.2.
</paragraph>
<caption doi="10.3897/mycokeys.63.46836.figure16" httpUri="https://binary.pensoft.net/fig/385050" pageId="0" pageNumber="119" start="Figure 16" startId="F16">
<paragraph pageId="0" pageNumber="119">
<emphasis bold="true" pageId="0" pageNumber="119">Figure 16.</emphasis>
<taxonomicName authorityName="Bien &amp; Damm" authorityYear="2020" class="Leotiomycetes" family="Lachnaceae" genus="Proliferodiscus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Proliferodiscus" order="Helotiales" pageId="0" pageNumber="119" phylum="Ascomycota" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="119">Proliferodiscus</emphasis>
</taxonomicName>
sp.
<emphasis bold="true" pageId="0" pageNumber="119">A</emphasis>
conidiomata
<emphasis bold="true" pageId="0" pageNumber="119">B</emphasis>
conidia formed in conidiomata
<emphasis bold="true" pageId="0" pageNumber="119">C-F, I-J</emphasis>
conidiogenous cells lining the inner wall of a conidioma
<emphasis bold="true" pageId="0" pageNumber="119">G, H</emphasis>
detached conidiogenous cells
<emphasis bold="true" pageId="0" pageNumber="119">H-J</emphasis>
extensions on conidiogenous cells
<emphasis bold="true" pageId="0" pageNumber="119">A-J</emphasis>
from OA
<emphasis bold="true" pageId="0" pageNumber="119">A</emphasis>
SM
<emphasis bold="true" pageId="0" pageNumber="119">B-J</emphasis>
LM. Scale bars: 300
<normalizedToken originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="119">A</emphasis>
), 5
<normalizedToken originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="119">B</emphasis>
applies to
<emphasis bold="true" pageId="0" pageNumber="119">C-J</emphasis>
).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="119" type="description">
<paragraph pageId="0" pageNumber="119">Culture characteristics.</paragraph>
<paragraph pageId="0" pageNumber="119">
<emphasis italics="true" pageId="0" pageNumber="119">Colonies on OA</emphasis>
flat to effuse with entire to fimbriate margin, white to buff, cinnamon to sienna at the margin, aerial mycelium sparse, white, reverse buff, cinnamon to sienna; 6-14 mm diam. in 2 wk, 16-32 mm diam. in 4 wk.
<emphasis italics="true" pageId="0" pageNumber="119">Colonies on SNA</emphasis>
flat to effuse with entire to fimbriate margin, white, lacking aerial mycelium, reverse same colour; 6-18 mm diam. in 2 wk, 20-34 mm diam. in 4 wk.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="119" type="notes">
<paragraph pageId="0" pageNumber="119">Notes.</paragraph>
<paragraph pageId="0" pageNumber="119">
In total, five strains of
<taxonomicName authorityName="Bien &amp; Damm" authorityYear="2020" class="Leotiomycetes" family="Lachnaceae" genus="Proliferodiscus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Proliferodiscus" order="Helotiales" pageId="0" pageNumber="119" phylum="Ascomycota" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="119">Proliferodiscus</emphasis>
</taxonomicName>
sp. have been isolated from wood of
<taxonomicName class="Magnoliopsida" family="Rosaceae" genus="Prunus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Prunus domestica" order="Rosales" pageId="0" pageNumber="119" phylum="Tracheophyta" rank="species" species="domestica">
<emphasis italics="true" pageId="0" pageNumber="119">Prunus domestica</emphasis>
</taxonomicName>
in Saxony (3) and Lower Saxony (1) as well as
<taxonomicName lsidName="P. avium" pageId="0" pageNumber="119" rank="species" species="avium">
<emphasis italics="true" pageId="0" pageNumber="119">P. avium</emphasis>
</taxonomicName>
in
<normalizedToken originalValue="Baden-Württemberg">Baden-Wuerttemberg</normalizedToken>
(1). Two subclades are formed by these strains, which differ in one and four nucleotides in the LSU and ITS sequences, respectively. No morphological differences were noticed between strains of the two subclades. They form a well-supported clade (100/100/99%) with eight strains retrieved from GenBank, including the ex-type strain of the recently described
<taxonomicName lsidName="Pr. chiangraiensis" pageId="0" pageNumber="119" rank="species" species="chiangraiensis">
<emphasis italics="true" pageId="0" pageNumber="119">Pr. chiangraiensis</emphasis>
</taxonomicName>
. The conidial shape of these strains is similar to that of the asexual morph of
<taxonomicName lsidName="Pr. pulveraceus" pageId="0" pageNumber="119" rank="species" species="pulveraceus">
<emphasis italics="true" pageId="0" pageNumber="119">Pr. pulveraceus</emphasis>
</taxonomicName>
observed by
<bibRefCitation author="Baral, HO" journalOrPublisher="Beihefte zur Zeitschrift fuer Mykologie" pageId="0" pageNumber="119" pagination="1 - 160" refId="B5" refString="Baral, HO, Kriegelsteiner, GJ, 1985. Bausteine zu einer Askomyzeten-Flora der Bundesrepublik Deutschland: In Sueddeutschland gefundene Inoperculate Discomyzeten mit taxonomischen, oekologischen, chorologischen Hinweisen und einer Farbtafel. Beihefte zur Zeitschrift fuer Mykologie 6: 1 - 160" title="Bausteine zu einer Askomyzeten-Flora der Bundesrepublik Deutschland: In Sueddeutschland gefundene Inoperculate Discomyzeten mit taxonomischen, oekologischen, chorologischen Hinweisen und einer Farbtafel." volume="6" year="1985">Baral and Kriegelsteiner (1985)</bibRefCitation>
; the conidia are slightly larger, but the measurements overlap. However, we cannot link these strains to
<taxonomicName lsidName="Pr. pulveraceus" pageId="0" pageNumber="119" rank="species" species="pulveraceus">
<emphasis italics="true" pageId="0" pageNumber="119">Pr. pulveraceus</emphasis>
</taxonomicName>
on this basis, because the species was described based on its sexual morph and no sequences of type material are available. Moreover, a recently published sequence, designated as
<taxonomicName lsidName="Pr. pulveraceus" pageId="0" pageNumber="119" rank="species" species="pulveraceus">
<emphasis italics="true" pageId="0" pageNumber="119">Pr. pulveraceus</emphasis>
</taxonomicName>
(MN066320, G Marson unpubl.), belongs to a different clade in our phylogeny.
</paragraph>
<paragraph pageId="0" pageNumber="119">
One striking feature was observed in our collections: new conidiogenous cells grow out of conidiogenous openings (Fig.
<figureCitation captionStart="Figure 16" captionStartId="F16" captionText="Figure 16. Proliferodiscus sp. A conidiomata B conidia formed in conidiomata C-F, I-J conidiogenous cells lining the inner wall of a conidioma G, H detached conidiogenous cells H-J extensions on conidiogenous cells A-J from OA A SM B-J LM. Scale bars: 300 μm (A), 5 μm (B applies to C-J)." figureDoi="10.3897/mycokeys.63.46836.figure16" httpUri="https://binary.pensoft.net/fig/385050" pageId="0" pageNumber="119">16H-J</figureCitation>
). This feature has previously been observed in species of other genera, for example,
<taxonomicName authorityName="Schwabe" authorityYear="1839" class="Sordariomycetes" family="Nectriaceae" genus="Fusarium" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Fusarium graminearum" order="Hypocreales" pageId="0" pageNumber="119" phylum="Ascomycota" rank="species" species="graminearum">
<emphasis italics="true" pageId="0" pageNumber="119">Fusarium graminearum</emphasis>
</taxonomicName>
(
<bibRefCitation author="Domsch, KH" journalOrPublisher="Australasian Plant Pathology" pageId="0" pageNumber="119" refId="B32" refString="Domsch, KH, Gams, W, Anderson, TH, 2007. Compendium of Soil Fungi. IHW Verlag, Eching, Germany." title="Compendium of Soil Fungi. IHW Verlag, Eching, Germany." year="2007">Domsch et al. 2007</bibRefCitation>
) and several
<taxonomicName class="Dothideomycetes" family="Botryosphaeriaceae" genus="Colletotrichum" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Colletotrichum" order="Botryosphaeriales" pageId="0" pageNumber="119" phylum="Ascomycota" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="119">Colletotrichum</emphasis>
</taxonomicName>
species (
<bibRefCitation DOI="https://doi.org/10.3114/sim0002" author="Damm, U" journalOrPublisher="Studies in Mycology" pageId="0" pageNumber="119" pagination="1 - 36" refId="B26" refString="Damm, U, Cannon, PF, Woudenberg, JC, Johnston, PR, Weir, BS, et, al., 2012. The Colletotrichum boninense species complex. Studies in Mycology 73: 1 - 36, DOI: https://doi.org/10.3114/sim0002" title="The Colletotrichum boninense species complex." url="https://doi.org/10.3114/sim0002" volume="73" year="2012">Damm et al. 2012</bibRefCitation>
,
<bibRefCitation DOI="https://doi.org/10.1016/j.simyco.2018.04.001" author="Damm, U" journalOrPublisher="Studies in Mycology" pageId="0" pageNumber="119" pagination="1 - 46" refId="B27" refString="Damm, U, Sato, T, Alizadeh, A, Groenewald, JZ, Crous, PW, 2019. The Colletotrichum dracaenophilum, C. magnum and C. orchidearum species complexes. Studies in Mycology 92: 1 - 46, DOI: https://doi.org/10.1016/j.simyco.2018.04.001" title="The Colletotrichum dracaenophilum, C. magnum and C. orchidearum species complexes." url="https://doi.org/10.1016/j.simyco.2018.04.001" volume="92" year="2019">2019</bibRefCitation>
).
</paragraph>
<paragraph pageId="0" pageNumber="119">
The anamorphic states of the observed strains of
<taxonomicName authorityName="Bien &amp; Damm" authorityYear="2020" class="Leotiomycetes" family="Lachnaceae" genus="Proliferodiscus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Proliferodiscus" order="Helotiales" pageId="0" pageNumber="119" phylum="Ascomycota" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="119">Proliferodiscus</emphasis>
</taxonomicName>
sp. differ from
<taxonomicName lsidName="Pr. ingens" pageId="0" pageNumber="119" rank="species" species="ingens">
<emphasis italics="true" pageId="0" pageNumber="119">Pr. ingens</emphasis>
</taxonomicName>
(strain GLMC 1751, this study) by the colour and the smaller size of conidiomata, faster culture growth rate on OA and SNA and the shape of the conidia.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="119" type="materials_examined">
<paragraph pageId="0" pageNumber="119">Material examined.</paragraph>
<paragraph pageId="0" pageNumber="119">
Germany, Saxony, in orchard north of
<normalizedToken originalValue="Wölkau">Woelkau</normalizedToken>
,
<geoCoordinate degrees="50" direction="north" minutes="58" orientation="latitude" precision="1" seconds="42.3" value="50.978416">50°58'42.3&quot;N</geoCoordinate>
,
<geoCoordinate degrees="13" direction="east" minutes="49" orientation="longitude" precision="1" seconds="40.0" value="13.827778">13°49'40.0&quot;E</geoCoordinate>
, from brown necrosis in wood of
<taxonomicName class="Magnoliopsida" family="Rosaceae" genus="Prunus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Prunus domestica" order="Rosales" pageId="0" pageNumber="119" phylum="Tracheophyta" rank="species" species="domestica">
<emphasis italics="true" pageId="0" pageNumber="119">Prunus domestica</emphasis>
</taxonomicName>
, 16 Jan 2015, S. Bien leg., GLM-F106310, culture GLMC 460 = CBS 145517 = DSM 109138;
<normalizedToken originalValue="Baden-Württemberg">Baden-Wuerttemberg</normalizedToken>
, orchard west of Nussbach,
<geoCoordinate degrees="48" direction="north" minutes="31" orientation="latitude" precision="1" seconds="55.8" value="48.532166">48°31'55.8&quot;N</geoCoordinate>
<geoCoordinate degrees="8" direction="east" minutes="00" orientation="longitude" precision="1" seconds="52.4" value="8.014556">8°00'52.4&quot;E</geoCoordinate>
, from necrotic wood of
<taxonomicName lsidName="P. avium" pageId="0" pageNumber="119" rank="species" species="avium">
<emphasis italics="true" pageId="0" pageNumber="119">P. avium</emphasis>
</taxonomicName>
, 23 Aug 2016, S. Bien leg., GLM-F110844, culture GLMC 1761 = CBS 145518 = DSM 109137; Saxony, in orchard north of
<normalizedToken originalValue="Wölkau">Woelkau</normalizedToken>
,
<geoCoordinate degrees="50" direction="north" minutes="58" orientation="latitude" precision="1" seconds="42.3" value="50.978416">50°58'42.3&quot;N</geoCoordinate>
,
<geoCoordinate degrees="13" direction="east" minutes="49" orientation="longitude" precision="1" seconds="40.0" value="13.827778">13°49'40.0&quot;E</geoCoordinate>
, from brown necrosis in wood of
<taxonomicName lsidName="P. domestica" pageId="0" pageNumber="119" rank="species" species="domestica">
<emphasis italics="true" pageId="0" pageNumber="119">P. domestica</emphasis>
</taxonomicName>
, 16 Jan 2015, S. Bien leg., GLM-F106320, culture GLMC 470; Lower Saxony, Hollern-Twielenfleth, orchard,
<geoCoordinate degrees="53" direction="north" minutes="36" orientation="latitude" precision="1" seconds="13.6" value="53.603775">53°36'13.6&quot;N</geoCoordinate>
,
<geoCoordinate degrees="9" direction="east" minutes="31" orientation="longitude" precision="1" seconds="50.8" value="9.530778">9°31'50.8&quot;E</geoCoordinate>
, from brown wedge-shaped necrosis in wood of
<taxonomicName lsidName="P. domestica" pageId="0" pageNumber="119" rank="species" species="domestica">
<emphasis italics="true" pageId="0" pageNumber="119">P. domestica</emphasis>
</taxonomicName>
, 8 Oct 2015, S. Bien leg., GLM-F107151, culture GLMC 1301; Saxony, in orchard north of
<normalizedToken originalValue="Wölkau">Woelkau</normalizedToken>
,
<geoCoordinate degrees="50" direction="north" minutes="58" orientation="latitude" precision="1" seconds="42.3" value="50.978416">50°58'42.3&quot;N</geoCoordinate>
,
<geoCoordinate degrees="13" direction="east" minutes="49" orientation="longitude" precision="1" seconds="40.0" value="13.827778">13°49'40.0&quot;E</geoCoordinate>
, from brown necrosis in wood of
<taxonomicName lsidName="P. domestica" pageId="0" pageNumber="119" rank="species" species="domestica">
<emphasis italics="true" pageId="0" pageNumber="119">P. domestica</emphasis>
</taxonomicName>
, 16 Jan 2015, S. Bien leg., GLM-F106352, culture GLMC 502.
</paragraph>
</subSubSection>
</treatment>
</document>