Lineage, Temperature, and Host Species have Interacting Effects on Lesion Development in Phytophthora ramorum.
Identifieur interne : 001061 ( Main/Exploration ); précédent : 001060; suivant : 001062Lineage, Temperature, and Host Species have Interacting Effects on Lesion Development in Phytophthora ramorum.
Auteurs : C A Eyre [États-Unis] ; K J Hayden [France] ; M. Kozanitas ; N J Grünwald [États-Unis] ; M. GarbelottoSource :
- Plant disease [ 0191-2917 ] ; 2014.
Abstract
There are four recognized clonal lineages of the pathogen Phytophthora ramorum. The two major lineages present in North America are NA1 and NA2. With a few exceptions, NA1 is found in natural forest ecosystems and nurseries, and NA2 is generally restricted to nurseries. Isolates from the NA1 and NA2 lineages were used to infect rhododendron, camellia, and California bay laurel in detached leaf assays to study the effects of lineage, temperature, and host on pathogenicity and host susceptibility. Isolates within both lineages were highly variable in their ability to form lesions on each host. There was also a tendency toward reduced lesion size in successive trials, suggesting degeneration of isolates over time. Temperature had a significant effect on lesion size, with a response that varied depending on the host and isolate. Phenotypic differences between lineages appear to be heavily influenced by the representation of isolates used, host, and temperature. The importance of temperature, host, and lineage are discussed with respect to disease management, as well as future range expansions and migrations of the pathogen.
DOI: 10.1094/PDIS-02-14-0151-RE
PubMed: 30703894
Affiliations:
- France, États-Unis
- Californie, Grand Est, Lorraine (région), Oregon
- Berkeley (Californie), Vandœuvre-lès-Nancy
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Kozanitas</name><affiliation><nlm:affiliation>Forest Pathology and Mycology Laboratory, Department of Environmental Science, Policy and Management, University of California-Berkeley.</nlm:affiliation><wicri:noCountry code="subField">University of California-Berkeley</wicri:noCountry></affiliation></author><author><name sortKey="Grunwald, N J" sort="Grunwald, N J" uniqKey="Grunwald N" first="N J" last="Grünwald">N J Grünwald</name><affiliation wicri:level="2"><nlm:affiliation>Horticultural Crops Research Laboratory, United States Department of Agriculture-Agricultural Research Service, Corvallis, OR.</nlm:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Oregon</region></placeName><wicri:cityArea>Horticultural Crops Research Laboratory, United States Department of Agriculture-Agricultural Research Service, Corvallis</wicri:cityArea></affiliation></author><author><name sortKey="Garbelotto, M" sort="Garbelotto, M" uniqKey="Garbelotto M" first="M" last="Garbelotto">M. Garbelotto</name><affiliation><nlm:affiliation>Forest Pathology and Mycology Laboratory, Department of Environmental Science, Policy and Management, University of California-Berkeley.</nlm:affiliation><wicri:noCountry code="subField">University of California-Berkeley</wicri:noCountry></affiliation></author></analytic><series><title level="j">Plant disease</title><idno type="ISSN">0191-2917</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">There are four recognized clonal lineages of the pathogen Phytophthora ramorum. The two major lineages present in North America are NA1 and NA2. With a few exceptions, NA1 is found in natural forest ecosystems and nurseries, and NA2 is generally restricted to nurseries. Isolates from the NA1 and NA2 lineages were used to infect rhododendron, camellia, and California bay laurel in detached leaf assays to study the effects of lineage, temperature, and host on pathogenicity and host susceptibility. Isolates within both lineages were highly variable in their ability to form lesions on each host. There was also a tendency toward reduced lesion size in successive trials, suggesting degeneration of isolates over time. Temperature had a significant effect on lesion size, with a response that varied depending on the host and isolate. Phenotypic differences between lineages appear to be heavily influenced by the representation of isolates used, host, and temperature. 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The two major lineages present in North America are NA1 and NA2. With a few exceptions, NA1 is found in natural forest ecosystems and nurseries, and NA2 is generally restricted to nurseries. Isolates from the NA1 and NA2 lineages were used to infect rhododendron, camellia, and California bay laurel in detached leaf assays to study the effects of lineage, temperature, and host on pathogenicity and host susceptibility. Isolates within both lineages were highly variable in their ability to form lesions on each host. There was also a tendency toward reduced lesion size in successive trials, suggesting degeneration of isolates over time. Temperature had a significant effect on lesion size, with a response that varied depending on the host and isolate. Phenotypic differences between lineages appear to be heavily influenced by the representation of isolates used, host, and temperature. The importance of temperature, host, and lineage are discussed with respect to disease management, as well as future range expansions and migrations of the pathogen.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Eyre</LastName><ForeName>C A</ForeName><Initials>CA</Initials><AffiliationInfo><Affiliation>Forest Pathology and Mycology Laboratory, Department of Environmental Science, Policy and Management, University of California-Berkeley, Berkeley.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hayden</LastName><ForeName>K J</ForeName><Initials>KJ</Initials><AffiliationInfo><Affiliation>Forest Pathology and Mycology Laboratory, Department of Environmental Science, Policy and Management, University of California-Berkeley; INRA, Interactions Arbres-Microorganismes, UMR1136, F-54280 Champenoux, France; and Université de Lorraine, Interactions Arbres-Microorganismes, UMR1136, F-54500 Vandoeuvre-lès-Nancy, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kozanitas</LastName><ForeName>M</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Forest Pathology and Mycology Laboratory, Department of Environmental Science, Policy and Management, University of California-Berkeley.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Grünwald</LastName><ForeName>N J</ForeName><Initials>NJ</Initials><AffiliationInfo><Affiliation>Horticultural Crops Research Laboratory, United States Department of Agriculture-Agricultural Research Service, Corvallis, OR.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Garbelotto</LastName><ForeName>M</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Forest Pathology and Mycology Laboratory, Department of Environmental Science, Policy and Management, University of California-Berkeley.</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></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>2</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30703894</ArticleId><ArticleId IdType="doi">10.1094/PDIS-02-14-0151-RE</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li><li>États-Unis</li></country><region><li>Californie</li><li>Grand Est</li><li>Lorraine (région)</li><li>Oregon</li></region><settlement><li>Berkeley (Californie)</li><li>Vandœuvre-lès-Nancy</li></settlement></list><tree><noCountry><name sortKey="Garbelotto, M" sort="Garbelotto, M" uniqKey="Garbelotto M" first="M" last="Garbelotto">M. Garbelotto</name><name sortKey="Kozanitas, M" sort="Kozanitas, M" uniqKey="Kozanitas M" first="M" last="Kozanitas">M. Kozanitas</name></noCountry><country name="États-Unis"><region name="Californie"><name sortKey="Eyre, C A" sort="Eyre, C A" uniqKey="Eyre C" first="C A" last="Eyre">C A Eyre</name></region><name sortKey="Grunwald, N J" sort="Grunwald, N J" uniqKey="Grunwald N" first="N J" last="Grünwald">N J Grünwald</name></country><country name="France"><region name="Grand Est"><name sortKey="Hayden, K J" sort="Hayden, K J" uniqKey="Hayden K" first="K J" last="Hayden">K J Hayden</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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