Variation in Aggressiveness of Canadian Isolates of Phytophthora infestans as Indicated by Their Relative Abilities to Cause Potato Tuber Rot.
Identifieur interne : 002876 ( Main/Exploration ); précédent : 002875; suivant : 002877Variation in Aggressiveness of Canadian Isolates of Phytophthora infestans as Indicated by Their Relative Abilities to Cause Potato Tuber Rot.
Auteurs : R D Peters ; H W Bud Platt ; R. Hall ; M. Medina [Costa Rica]Source :
- Plant disease [ 0191-2917 ] ; 1999.
Abstract
Studies were conducted in 1995, 1996, and 1997 to determine the ability of Canadian isolates of Phytophthora infestans to cause tuber disease in a variety of potato cultivars. Most isolates of recently introduced multilocus genotypes (US-7, US-8, g11, g26, g29, and g40) were more aggressive on tuber tissue than isolates of the traditional US-1 genotype, based on surface necrosis (SN), lesion depth (LD), and compound aggressiveness index (CAI = SN × LD) components. Other multilocus genotypes (g30, g41, g42, and UN-3) were similar in aggressiveness to US-1. The g11 (US-11) genotype consistently displayed aggressiveness that was intermediate to that of the US-8 and US-1 genotypes. Variation also occurred within a multilocus genotype, and an isolate of the US-8 genotype from New Brunswick was consistently less aggressive than other US-8 isolates. Cvs. Dorita and Island Sunshine were consistently the most resistant to infection, regardless of isolate, relative to the more susceptible responses of Green Mountain, Russet Bur-bank, Kennebec, Superior, Shepody, Red Pontiac, Sebago, and Bintje. Even so, isolates of the newly introduced US-8 genotype were able to cause significantly more disease on these resistant cultivars than isolates of the US-1 genotype. The predominant genotypes currently found in potato production areas in Canada (US-8 and g11) have higher fitness on tuber tissue than displaced, preexisting strains (US-1).
DOI: 10.1094/PDIS.1999.83.7.652
PubMed: 30845617
Affiliations:
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Medina</name><affiliation wicri:level="1"><nlm:affiliation>Departamento de Investigación, Corporación de Desarrollo Agrícola, Del Monte, S.A., Apdo Postal 4084-1000, San José, Costa Rica.</nlm:affiliation><country xml:lang="fr">Costa Rica</country><wicri:regionArea>Departamento de Investigación, Corporación de Desarrollo Agrícola, Del Monte, S.A., Apdo Postal 4084-1000, San José</wicri:regionArea><wicri:noRegion>San José</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1999">1999</date><idno type="RBID">pubmed:30845617</idno><idno type="pmid">30845617</idno><idno type="doi">10.1094/PDIS.1999.83.7.652</idno><idno type="wicri:Area/Main/Corpus">002941</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002941</idno><idno type="wicri:Area/Main/Curation">002941</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002941</idno><idno type="wicri:Area/Main/Exploration">002941</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Variation in Aggressiveness of Canadian Isolates of Phytophthora infestans as Indicated by Their Relative Abilities to Cause Potato Tuber Rot.</title><author><name sortKey="Peters, R D" sort="Peters, R D" uniqKey="Peters R" first="R D" last="Peters">R D Peters</name><affiliation><nlm:affiliation>Agriculture and Agri-Food Canada, Crops and Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI C1A 7M8.</nlm:affiliation><wicri:noCountry code="subField">PEI C1A 7M8</wicri:noCountry></affiliation></author><author><name sortKey="Platt, H W Bud" sort="Platt, H W Bud" uniqKey="Platt H" first="H W Bud" last="Platt">H W Bud Platt</name><affiliation><nlm:affiliation>Agriculture and Agri-Food Canada, Crops and Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI C1A 7M8.</nlm:affiliation><wicri:noCountry code="subField">PEI C1A 7M8</wicri:noCountry></affiliation></author><author><name sortKey="Hall, R" sort="Hall, R" uniqKey="Hall R" first="R" last="Hall">R. Hall</name><affiliation><nlm:affiliation>University of Guelph, Department of Environmental Biology, Guelph, ON N1G 2W1.</nlm:affiliation><wicri:noCountry code="subField">ON N1G 2W1</wicri:noCountry></affiliation></author><author><name sortKey="Medina, M" sort="Medina, M" uniqKey="Medina M" first="M" last="Medina">M. Medina</name><affiliation wicri:level="1"><nlm:affiliation>Departamento de Investigación, Corporación de Desarrollo Agrícola, Del Monte, S.A., Apdo Postal 4084-1000, San José, Costa Rica.</nlm:affiliation><country xml:lang="fr">Costa Rica</country><wicri:regionArea>Departamento de Investigación, Corporación de Desarrollo Agrícola, Del Monte, S.A., Apdo Postal 4084-1000, San José</wicri:regionArea><wicri:noRegion>San José</wicri:noRegion></affiliation></author></analytic><series><title level="j">Plant disease</title><idno type="ISSN">0191-2917</idno><imprint><date when="1999" type="published">1999</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Studies were conducted in 1995, 1996, and 1997 to determine the ability of Canadian isolates of Phytophthora infestans to cause tuber disease in a variety of potato cultivars. Most isolates of recently introduced multilocus genotypes (US-7, US-8, g11, g26, g29, and g40) were more aggressive on tuber tissue than isolates of the traditional US-1 genotype, based on surface necrosis (SN), lesion depth (LD), and compound aggressiveness index (CAI = SN × LD) components. Other multilocus genotypes (g30, g41, g42, and UN-3) were similar in aggressiveness to US-1. The g11 (US-11) genotype consistently displayed aggressiveness that was intermediate to that of the US-8 and US-1 genotypes. Variation also occurred within a multilocus genotype, and an isolate of the US-8 genotype from New Brunswick was consistently less aggressive than other US-8 isolates. Cvs. Dorita and Island Sunshine were consistently the most resistant to infection, regardless of isolate, relative to the more susceptible responses of Green Mountain, Russet Bur-bank, Kennebec, Superior, Shepody, Red Pontiac, Sebago, and Bintje. Even so, isolates of the newly introduced US-8 genotype were able to cause significantly more disease on these resistant cultivars than isolates of the US-1 genotype. The predominant genotypes currently found in potato production areas in Canada (US-8 and g11) have higher fitness on tuber tissue than displaced, preexisting strains (US-1).</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">30845617</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0191-2917</ISSN><JournalIssue CitedMedium="Print"><Volume>83</Volume><Issue>7</Issue><PubDate><Year>1999</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Plant disease</Title><ISOAbbreviation>Plant Dis</ISOAbbreviation></Journal><ArticleTitle>Variation in Aggressiveness of Canadian Isolates of Phytophthora infestans as Indicated by Their Relative Abilities to Cause Potato Tuber Rot.</ArticleTitle><Pagination><MedlinePgn>652-661</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PDIS.1999.83.7.652</ELocationID><Abstract><AbstractText>Studies were conducted in 1995, 1996, and 1997 to determine the ability of Canadian isolates of Phytophthora infestans to cause tuber disease in a variety of potato cultivars. Most isolates of recently introduced multilocus genotypes (US-7, US-8, g11, g26, g29, and g40) were more aggressive on tuber tissue than isolates of the traditional US-1 genotype, based on surface necrosis (SN), lesion depth (LD), and compound aggressiveness index (CAI = SN × LD) components. Other multilocus genotypes (g30, g41, g42, and UN-3) were similar in aggressiveness to US-1. The g11 (US-11) genotype consistently displayed aggressiveness that was intermediate to that of the US-8 and US-1 genotypes. Variation also occurred within a multilocus genotype, and an isolate of the US-8 genotype from New Brunswick was consistently less aggressive than other US-8 isolates. Cvs. Dorita and Island Sunshine were consistently the most resistant to infection, regardless of isolate, relative to the more susceptible responses of Green Mountain, Russet Bur-bank, Kennebec, Superior, Shepody, Red Pontiac, Sebago, and Bintje. Even so, isolates of the newly introduced US-8 genotype were able to cause significantly more disease on these resistant cultivars than isolates of the US-1 genotype. The predominant genotypes currently found in potato production areas in Canada (US-8 and g11) have higher fitness on tuber tissue than displaced, preexisting strains (US-1).</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Peters</LastName><ForeName>R D</ForeName><Initials>RD</Initials><AffiliationInfo><Affiliation>Agriculture and Agri-Food Canada, Crops and Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI C1A 7M8.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Platt</LastName><ForeName>H W Bud</ForeName><Initials>HWB</Initials><AffiliationInfo><Affiliation>Agriculture and Agri-Food Canada, Crops and Livestock Research Centre, P.O. Box 1210, Charlottetown, PEI C1A 7M8.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hall</LastName><ForeName>R</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>University of Guelph, Department of Environmental Biology, Guelph, ON N1G 2W1.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Medina</LastName><ForeName>M</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Departamento de Investigación, Corporación de Desarrollo Agrícola, Del Monte, S.A., Apdo Postal 4084-1000, San José, Costa Rica.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Dis</MedlineTA><NlmUniqueID>9882809</NlmUniqueID><ISSNLinking>0191-2917</ISSNLinking></MedlineJournalInfo><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N"></Keyword><Keyword MajorTopicYN="N">horizontal resistance</Keyword><Keyword MajorTopicYN="N">late blight</Keyword><Keyword MajorTopicYN="N">vertical resistance</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>3</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>1999</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1999</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30845617</ArticleId><ArticleId IdType="doi">10.1094/PDIS.1999.83.7.652</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Costa Rica</li></country></list><tree><noCountry><name sortKey="Hall, R" sort="Hall, R" uniqKey="Hall R" first="R" last="Hall">R. Hall</name><name sortKey="Peters, R D" sort="Peters, R D" uniqKey="Peters R" first="R D" last="Peters">R D Peters</name><name sortKey="Platt, H W Bud" sort="Platt, H W Bud" uniqKey="Platt H" first="H W Bud" last="Platt">H W Bud Platt</name></noCountry><country name="Costa Rica"><noRegion><name sortKey="Medina, M" sort="Medina, M" uniqKey="Medina M" first="M" last="Medina">M. Medina</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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