Potato late blight in Morocco: characterization of Phytophthora infestans populations (virulence and mating type).
Identifieur interne : 002140 ( Main/Exploration ); précédent : 002139; suivant : 002141Potato late blight in Morocco: characterization of Phytophthora infestans populations (virulence and mating type).
Auteurs : E H Achbani [Maroc] ; M. Hafidi ; B. Abdellatif ; N. Lamaaraf ; B. Kouta ; N. Nafie ; R. Corbière ; D. AndrivonSource :
- Communications in agricultural and applied biological sciences [ 1379-1176 ] ; 2005.
Descripteurs français
- KwdFr :
- MESH :
- génétique : Phytophthora, Virulence.
- immunologie : Solanum tuberosum.
- microbiologie : Maladies des plantes, Solanum tuberosum.
- pathogénicité : Phytophthora.
- Génotype, Maroc, Prédisposition aux maladies.
- Wicri :
- geographic : Maroc.
English descriptors
- KwdEn :
- MESH :
- geographic : Morocco.
- genetics : Phytophthora, Virulence.
- immunology : Solanum tuberosum.
- microbiology : Plant Diseases, Solanum tuberosum.
- pathogenicity : Phytophthora.
- Disease Susceptibility, Genotype.
Abstract
Late blight caused by Phytophthora infestans, is the most important disease of potato in Morocco. Use of partially resistant cultivars should be an essential component of a sustainable management strategy of potato late blight, provided the durability of this form of resistance. It is therefore important to determine the nature of P. infestans Moroccan populations. Mating types were determined for 91 strains of P. infestans collected in the northern (Larache-northern plain), north western (Kénitra) and north eastern (Méknès, Middle Atlas) potato cropping areas of Morocco in 1999-2000, 2000-2001 and 2003-2004. They showed a clear regional structure of these populations, with the presence of both mating types (A1 and A2). Of all isolates collected since 1999, A2 mating type constituted 56% (54 isolates), following by A1 mating type (40.7%, 31 isolates) and A1-A2 (self-fertile) mating type (3.30%, 3 isolates). Populations from Méknès and Kénitra consisted mainly of A2 mating type, whereas populations from Larache predominantly included A1 mating type. Physiological race study revealed the presence of 19 races of P. infestans in the first collection of 25 isolates tested between 1999 and 2001. All known virulence genes were detected in western and northern Moroccan isolates, except virulence for resistance genes R2, R5, and R6 which were absent. All isolates were able to overcome two or more R genes except one isolate (5-1) corresponding to race 1.
PubMed: 16637185
Affiliations:
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Abdellatif</name></author><author><name sortKey="Lamaaraf, N" sort="Lamaaraf, N" uniqKey="Lamaaraf N" first="N" last="Lamaaraf">N. Lamaaraf</name></author><author><name sortKey="Kouta, B" sort="Kouta, B" uniqKey="Kouta B" first="B" last="Kouta">B. Kouta</name></author><author><name sortKey="Nafie, N" sort="Nafie, N" uniqKey="Nafie N" first="N" last="Nafie">N. Nafie</name></author><author><name sortKey="Corbiere, R" sort="Corbiere, R" uniqKey="Corbiere R" first="R" last="Corbière">R. Corbière</name></author><author><name sortKey="Andrivon, D" sort="Andrivon, D" uniqKey="Andrivon D" first="D" last="Andrivon">D. 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Hafidi</name></author><author><name sortKey="Abdellatif, B" sort="Abdellatif, B" uniqKey="Abdellatif B" first="B" last="Abdellatif">B. Abdellatif</name></author><author><name sortKey="Lamaaraf, N" sort="Lamaaraf, N" uniqKey="Lamaaraf N" first="N" last="Lamaaraf">N. Lamaaraf</name></author><author><name sortKey="Kouta, B" sort="Kouta, B" uniqKey="Kouta B" first="B" last="Kouta">B. Kouta</name></author><author><name sortKey="Nafie, N" sort="Nafie, N" uniqKey="Nafie N" first="N" last="Nafie">N. Nafie</name></author><author><name sortKey="Corbiere, R" sort="Corbiere, R" uniqKey="Corbiere R" first="R" last="Corbière">R. Corbière</name></author><author><name sortKey="Andrivon, D" sort="Andrivon, D" uniqKey="Andrivon D" first="D" last="Andrivon">D. Andrivon</name></author></analytic><series><title level="j">Communications in agricultural and applied biological sciences</title><idno type="ISSN">1379-1176</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Disease Susceptibility (MeSH)</term><term>Genotype (MeSH)</term><term>Morocco (MeSH)</term><term>Phytophthora (genetics)</term><term>Phytophthora (pathogenicity)</term><term>Plant Diseases (microbiology)</term><term>Solanum tuberosum (immunology)</term><term>Solanum tuberosum (microbiology)</term><term>Virulence (genetics)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Génotype (MeSH)</term><term>Maladies des plantes (microbiologie)</term><term>Maroc (MeSH)</term><term>Phytophthora (génétique)</term><term>Phytophthora (pathogénicité)</term><term>Prédisposition aux maladies (MeSH)</term><term>Solanum tuberosum (immunologie)</term><term>Solanum tuberosum (microbiologie)</term><term>Virulence (génétique)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Morocco</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Phytophthora</term><term>Virulence</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Phytophthora</term><term>Virulence</term></keywords><keywords scheme="MESH" qualifier="immunologie" xml:lang="fr"><term>Solanum tuberosum</term></keywords><keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>Solanum tuberosum</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Maladies des plantes</term><term>Solanum tuberosum</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Diseases</term><term>Solanum tuberosum</term></keywords><keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr"><term>Phytophthora</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Disease Susceptibility</term><term>Genotype</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Génotype</term><term>Maroc</term><term>Prédisposition aux maladies</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Maroc</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Late blight caused by Phytophthora infestans, is the most important disease of potato in Morocco. Use of partially resistant cultivars should be an essential component of a sustainable management strategy of potato late blight, provided the durability of this form of resistance. It is therefore important to determine the nature of P. infestans Moroccan populations. Mating types were determined for 91 strains of P. infestans collected in the northern (Larache-northern plain), north western (Kénitra) and north eastern (Méknès, Middle Atlas) potato cropping areas of Morocco in 1999-2000, 2000-2001 and 2003-2004. They showed a clear regional structure of these populations, with the presence of both mating types (A1 and A2). Of all isolates collected since 1999, A2 mating type constituted 56% (54 isolates), following by A1 mating type (40.7%, 31 isolates) and A1-A2 (self-fertile) mating type (3.30%, 3 isolates). Populations from Méknès and Kénitra consisted mainly of A2 mating type, whereas populations from Larache predominantly included A1 mating type. Physiological race study revealed the presence of 19 races of P. infestans in the first collection of 25 isolates tested between 1999 and 2001. All known virulence genes were detected in western and northern Moroccan isolates, except virulence for resistance genes R2, R5, and R6 which were absent. All isolates were able to overcome two or more R genes except one isolate (5-1) corresponding to race 1.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16637185</PMID><DateCompleted><Year>2006</Year><Month>05</Month><Day>26</Day></DateCompleted><DateRevised><Year>2006</Year><Month>12</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1379-1176</ISSN><JournalIssue CitedMedium="Print"><Volume>70</Volume><Issue>3</Issue><PubDate><Year>2005</Year></PubDate></JournalIssue><Title>Communications in agricultural and applied biological sciences</Title><ISOAbbreviation>Commun Agric Appl Biol Sci</ISOAbbreviation></Journal><ArticleTitle>Potato late blight in Morocco: characterization of Phytophthora infestans populations (virulence and mating type).</ArticleTitle><Pagination><MedlinePgn>247-52</MedlinePgn></Pagination><Abstract><AbstractText>Late blight caused by Phytophthora infestans, is the most important disease of potato in Morocco. Use of partially resistant cultivars should be an essential component of a sustainable management strategy of potato late blight, provided the durability of this form of resistance. It is therefore important to determine the nature of P. infestans Moroccan populations. Mating types were determined for 91 strains of P. infestans collected in the northern (Larache-northern plain), north western (Kénitra) and north eastern (Méknès, Middle Atlas) potato cropping areas of Morocco in 1999-2000, 2000-2001 and 2003-2004. They showed a clear regional structure of these populations, with the presence of both mating types (A1 and A2). Of all isolates collected since 1999, A2 mating type constituted 56% (54 isolates), following by A1 mating type (40.7%, 31 isolates) and A1-A2 (self-fertile) mating type (3.30%, 3 isolates). Populations from Méknès and Kénitra consisted mainly of A2 mating type, whereas populations from Larache predominantly included A1 mating type. Physiological race study revealed the presence of 19 races of P. infestans in the first collection of 25 isolates tested between 1999 and 2001. All known virulence genes were detected in western and northern Moroccan isolates, except virulence for resistance genes R2, R5, and R6 which were absent. All isolates were able to overcome two or more R genes except one isolate (5-1) corresponding to race 1.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Achbani</LastName><ForeName>E H</ForeName><Initials>EH</Initials><AffiliationInfo><Affiliation>Laboratoire de Phytobactériologie, INRA Centre Régional Saïs-Moyen Atlas BP 578, 50000 Méknès, Morocco. achbani5@yahoo.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hafidi</LastName><ForeName>M</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Abdellatif</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Lamaaraf</LastName><ForeName>N</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Kouta</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Nafie</LastName><ForeName>N</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Corbière</LastName><ForeName>R</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Andrivon</LastName><ForeName>D</ForeName><Initials>D</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Belgium</Country><MedlineTA>Commun Agric Appl Biol Sci</MedlineTA><NlmUniqueID>101200320</NlmUniqueID><ISSNLinking>1379-1176</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D004198" MajorTopicYN="N">Disease Susceptibility</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009018" MajorTopicYN="N" Type="Geographic">Morocco</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010838" MajorTopicYN="N">Phytophthora</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000472" MajorTopicYN="Y">pathogenicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011198" MajorTopicYN="N">Solanum tuberosum</DescriptorName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014774" MajorTopicYN="N">Virulence</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2006</Year><Month>4</Month><Day>28</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2006</Year><Month>5</Month><Day>27</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2006</Year><Month>4</Month><Day>28</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">16637185</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Maroc</li></country></list><tree><noCountry><name sortKey="Abdellatif, B" sort="Abdellatif, B" uniqKey="Abdellatif B" first="B" last="Abdellatif">B. Abdellatif</name><name sortKey="Andrivon, D" sort="Andrivon, D" uniqKey="Andrivon D" first="D" last="Andrivon">D. Andrivon</name><name sortKey="Corbiere, R" sort="Corbiere, R" uniqKey="Corbiere R" first="R" last="Corbière">R. Corbière</name><name sortKey="Hafidi, M" sort="Hafidi, M" uniqKey="Hafidi M" first="M" last="Hafidi">M. Hafidi</name><name sortKey="Kouta, B" sort="Kouta, B" uniqKey="Kouta B" first="B" last="Kouta">B. Kouta</name><name sortKey="Lamaaraf, N" sort="Lamaaraf, N" uniqKey="Lamaaraf N" first="N" last="Lamaaraf">N. Lamaaraf</name><name sortKey="Nafie, N" sort="Nafie, N" uniqKey="Nafie N" first="N" last="Nafie">N. Nafie</name></noCountry><country name="Maroc"><noRegion><name sortKey="Achbani, E H" sort="Achbani, E H" uniqKey="Achbani E" first="E H" last="Achbani">E H Achbani</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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