Phytophthora aquimorbida sp. nov. and Phytophthora taxon 'aquatilis' recovered from irrigation reservoirs and a stream in Virginia, USA.
Identifieur interne : 001402 ( Main/Exploration ); précédent : 001401; suivant : 001403Phytophthora aquimorbida sp. nov. and Phytophthora taxon 'aquatilis' recovered from irrigation reservoirs and a stream in Virginia, USA.
Auteurs : Chuanxue Hong [États-Unis] ; Patricia A. Richardson ; Wei Hao ; Sita R. Ghimire ; Ping Kong ; Gary W. Moorman ; John D. Lea-Cox ; David S. RossSource :
- Mycologia [ 0027-5514 ]
Descripteurs français
- KwdFr :
- ADN fongique (génétique), Maladies des plantes (microbiologie), Microbiologie de l'eau (MeSH), Phylogenèse (MeSH), Phytophthora (classification), Phytophthora (génétique), Phytophthora (isolement et purification), Phytophthora (ultrastructure), Rhododendron (microbiologie), Rivières (microbiologie), Virginie (MeSH).
- MESH :
- génétique : ADN fongique, Phytophthora.
- isolement et purification : Phytophthora.
- microbiologie : Maladies des plantes, Rhododendron, Rivières.
- Microbiologie de l'eau, Phylogenèse, Phytophthora, Virginie.
English descriptors
- KwdEn :
- MESH :
- chemical , genetics : DNA, Fungal.
- geographic : Virginia.
- classification : Phytophthora.
- genetics : Phytophthora.
- isolation & purification : Phytophthora.
- microbiology : Plant Diseases, Rhododendron, Rivers.
- ultrastructure : Phytophthora.
- Phylogeny, Water Microbiology.
Abstract
Two distinct subgroups (L2 and A(-2)) were recovered from irrigation reservoirs and a stream in Virginia, USA. After molecular, morphological and physiological examinations, the L2 subgroup was named Phytophthora aquimorbida and the A(-2) designated as Phytophthora taxon 'aquatilis'. Both taxa are homothallic. P. aquimorbida is characterized by its noncaducous and nonpapillate sporangia, catenulate and radiating hyphal swellings and thick-walled plerotic oospores formed in globose oogonia mostly in the absence of an antheridium. P. taxon 'aquatilis' produces plerotic oospores in globose oogonia mostly with a paragynous antheridium. It has semi-papillate, caducous sporangia with variable pedicels, but it does not have hyphal swelling. Analyses of ITS, CO1, β-tubulin and NADH1 sequences revealed that P. aquimorbida is closely related to P. hydropathica, P. irrigata and P. parsiana, and P. taxon 'aquatilis' is related to P. multivesiculata. The optimum temperature for culture growth is 30 and 20 C for P. aquimorbida and P. taxon 'aquatilis' respectively. Both taxa were pathogenic to rhododendron plants and caused root discoloration, pale leaves, wilting, tip necrosis and dieback. Their plant biosecurity risk also is discussed.
DOI: 10.3852/11-055
PubMed: 22492404
Affiliations:
Links toward previous steps (curation, corpus...)
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Richardson</name></author><author><name sortKey="Hao, Wei" sort="Hao, Wei" uniqKey="Hao W" first="Wei" last="Hao">Wei Hao</name></author><author><name sortKey="Ghimire, Sita R" sort="Ghimire, Sita R" uniqKey="Ghimire S" first="Sita R" last="Ghimire">Sita R. Ghimire</name></author><author><name sortKey="Kong, Ping" sort="Kong, Ping" uniqKey="Kong P" first="Ping" last="Kong">Ping Kong</name></author><author><name sortKey="Moorman, Gary W" sort="Moorman, Gary W" uniqKey="Moorman G" first="Gary W" last="Moorman">Gary W. Moorman</name></author><author><name sortKey="Lea Cox, John D" sort="Lea Cox, John D" uniqKey="Lea Cox J" first="John D" last="Lea-Cox">John D. Lea-Cox</name></author><author><name sortKey="Ross, David S" sort="Ross, David S" uniqKey="Ross D" first="David S" last="Ross">David S. 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Richardson</name></author><author><name sortKey="Hao, Wei" sort="Hao, Wei" uniqKey="Hao W" first="Wei" last="Hao">Wei Hao</name></author><author><name sortKey="Ghimire, Sita R" sort="Ghimire, Sita R" uniqKey="Ghimire S" first="Sita R" last="Ghimire">Sita R. Ghimire</name></author><author><name sortKey="Kong, Ping" sort="Kong, Ping" uniqKey="Kong P" first="Ping" last="Kong">Ping Kong</name></author><author><name sortKey="Moorman, Gary W" sort="Moorman, Gary W" uniqKey="Moorman G" first="Gary W" last="Moorman">Gary W. Moorman</name></author><author><name sortKey="Lea Cox, John D" sort="Lea Cox, John D" uniqKey="Lea Cox J" first="John D" last="Lea-Cox">John D. Lea-Cox</name></author><author><name sortKey="Ross, David S" sort="Ross, David S" uniqKey="Ross D" first="David S" last="Ross">David S. Ross</name></author></analytic><series><title level="j">Mycologia</title><idno type="ISSN">0027-5514</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>DNA, Fungal (genetics)</term><term>Phylogeny (MeSH)</term><term>Phytophthora (classification)</term><term>Phytophthora (genetics)</term><term>Phytophthora (isolation & purification)</term><term>Phytophthora (ultrastructure)</term><term>Plant Diseases (microbiology)</term><term>Rhododendron (microbiology)</term><term>Rivers (microbiology)</term><term>Virginia (MeSH)</term><term>Water Microbiology (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>ADN fongique (génétique)</term><term>Maladies des plantes (microbiologie)</term><term>Microbiologie de l'eau (MeSH)</term><term>Phylogenèse (MeSH)</term><term>Phytophthora (classification)</term><term>Phytophthora (génétique)</term><term>Phytophthora (isolement et purification)</term><term>Phytophthora (ultrastructure)</term><term>Rhododendron (microbiologie)</term><term>Rivières (microbiologie)</term><term>Virginie (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA, Fungal</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Virginia</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ADN fongique</term><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Maladies des plantes</term><term>Rhododendron</term><term>Rivières</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Diseases</term><term>Rhododendron</term><term>Rivers</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Phylogeny</term><term>Water Microbiology</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Microbiologie de l'eau</term><term>Phylogenèse</term><term>Phytophthora</term><term>Virginie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Two distinct subgroups (L2 and A(-2)) were recovered from irrigation reservoirs and a stream in Virginia, USA. After molecular, morphological and physiological examinations, the L2 subgroup was named Phytophthora aquimorbida and the A(-2) designated as Phytophthora taxon 'aquatilis'. Both taxa are homothallic. P. aquimorbida is characterized by its noncaducous and nonpapillate sporangia, catenulate and radiating hyphal swellings and thick-walled plerotic oospores formed in globose oogonia mostly in the absence of an antheridium. P. taxon 'aquatilis' produces plerotic oospores in globose oogonia mostly with a paragynous antheridium. It has semi-papillate, caducous sporangia with variable pedicels, but it does not have hyphal swelling. Analyses of ITS, CO1, β-tubulin and NADH1 sequences revealed that P. aquimorbida is closely related to P. hydropathica, P. irrigata and P. parsiana, and P. taxon 'aquatilis' is related to P. multivesiculata. The optimum temperature for culture growth is 30 and 20 C for P. aquimorbida and P. taxon 'aquatilis' respectively. Both taxa were pathogenic to rhododendron plants and caused root discoloration, pale leaves, wilting, tip necrosis and dieback. Their plant biosecurity risk also is discussed.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22492404</PMID><DateCompleted><Year>2012</Year><Month>11</Month><Day>08</Day></DateCompleted><DateRevised><Year>2012</Year><Month>09</Month><Day>17</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0027-5514</ISSN><JournalIssue CitedMedium="Print"><Volume>104</Volume><Issue>5</Issue><PubDate><MedlineDate>2012 Sep-Oct</MedlineDate></PubDate></JournalIssue><Title>Mycologia</Title><ISOAbbreviation>Mycologia</ISOAbbreviation></Journal><ArticleTitle>Phytophthora aquimorbida sp. nov. and Phytophthora taxon 'aquatilis' recovered from irrigation reservoirs and a stream in Virginia, USA.</ArticleTitle><Pagination><MedlinePgn>1097-108</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3852/11-055</ELocationID><Abstract><AbstractText>Two distinct subgroups (L2 and A(-2)) were recovered from irrigation reservoirs and a stream in Virginia, USA. After molecular, morphological and physiological examinations, the L2 subgroup was named Phytophthora aquimorbida and the A(-2) designated as Phytophthora taxon 'aquatilis'. Both taxa are homothallic. P. aquimorbida is characterized by its noncaducous and nonpapillate sporangia, catenulate and radiating hyphal swellings and thick-walled plerotic oospores formed in globose oogonia mostly in the absence of an antheridium. P. taxon 'aquatilis' produces plerotic oospores in globose oogonia mostly with a paragynous antheridium. It has semi-papillate, caducous sporangia with variable pedicels, but it does not have hyphal swelling. Analyses of ITS, CO1, β-tubulin and NADH1 sequences revealed that P. aquimorbida is closely related to P. hydropathica, P. irrigata and P. parsiana, and P. taxon 'aquatilis' is related to P. multivesiculata. The optimum temperature for culture growth is 30 and 20 C for P. aquimorbida and P. taxon 'aquatilis' respectively. Both taxa were pathogenic to rhododendron plants and caused root discoloration, pale leaves, wilting, tip necrosis and dieback. Their plant biosecurity risk also is discussed.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hong</LastName><ForeName>Chuanxue</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Virginia Polytechnic Institute and State University, Hampton Roads Agricultural Research and Extension Center, Virginia Beach, VA 23455, USA. chhong2@vt.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Richardson</LastName><ForeName>Patricia A</ForeName><Initials>PA</Initials></Author><Author ValidYN="Y"><LastName>Hao</LastName><ForeName>Wei</ForeName><Initials>W</Initials></Author><Author ValidYN="Y"><LastName>Ghimire</LastName><ForeName>Sita R</ForeName><Initials>SR</Initials></Author><Author ValidYN="Y"><LastName>Kong</LastName><ForeName>Ping</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Moorman</LastName><ForeName>Gary W</ForeName><Initials>GW</Initials></Author><Author ValidYN="Y"><LastName>Lea-Cox</LastName><ForeName>John D</ForeName><Initials>JD</Initials></Author><Author ValidYN="Y"><LastName>Ross</LastName><ForeName>David S</ForeName><Initials>DS</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>04</Month><Day>09</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mycologia</MedlineTA><NlmUniqueID>0400764</NlmUniqueID><ISSNLinking>0027-5514</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004271">DNA, Fungal</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D004271" MajorTopicYN="N">DNA, Fungal</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="N">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010838" MajorTopicYN="N">Phytophthora</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="Y">classification</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029793" MajorTopicYN="N">Rhododendron</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D045483" MajorTopicYN="N">Rivers</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014768" MajorTopicYN="N" Type="Geographic">Virginia</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014871" MajorTopicYN="N">Water Microbiology</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>11</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">22492404</ArticleId><ArticleId IdType="pii">11-055</ArticleId><ArticleId IdType="doi">10.3852/11-055</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Virginie</li></region></list><tree><noCountry><name sortKey="Ghimire, Sita R" sort="Ghimire, Sita R" uniqKey="Ghimire S" first="Sita R" last="Ghimire">Sita R. Ghimire</name><name sortKey="Hao, Wei" sort="Hao, Wei" uniqKey="Hao W" first="Wei" last="Hao">Wei Hao</name><name sortKey="Kong, Ping" sort="Kong, Ping" uniqKey="Kong P" first="Ping" last="Kong">Ping Kong</name><name sortKey="Lea Cox, John D" sort="Lea Cox, John D" uniqKey="Lea Cox J" first="John D" last="Lea-Cox">John D. Lea-Cox</name><name sortKey="Moorman, Gary W" sort="Moorman, Gary W" uniqKey="Moorman G" first="Gary W" last="Moorman">Gary W. Moorman</name><name sortKey="Richardson, Patricia A" sort="Richardson, Patricia A" uniqKey="Richardson P" first="Patricia A" last="Richardson">Patricia A. Richardson</name><name sortKey="Ross, David S" sort="Ross, David S" uniqKey="Ross D" first="David S" last="Ross">David S. Ross</name></noCountry><country name="États-Unis"><region name="Virginie"><name sortKey="Hong, Chuanxue" sort="Hong, Chuanxue" uniqKey="Hong C" first="Chuanxue" last="Hong">Chuanxue Hong</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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