Characterization of pathotypes among isolates of Xanthomonas axonopodis pv. manihotis in Colombia

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cg.coverage.countryColombiaen_US
cg.coverage.iso3166-alpha2COen_US
cg.coverage.regionSouth Americaen_US
cg.identifier.doihttps://doi.org/10.1046/j.1365-3059.2000.00513.xen_US
cg.isijournalISI Journalen_US
cg.issn1365-3059en_US
cg.issue6en_US
cg.journalPlant Pathologyen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.ciatCASSAVAen_US
cg.subject.ciatPESTS AND DISEASESen_US
cg.subject.ciatPLANT BREEDINGen_US
cg.volume49en_US
dc.contributor.authorRestrepo, S.en_US
dc.contributor.authorDuque E., Myriam Cristinaen_US
dc.contributor.authorVerdier, Valerie M.en_US
dc.date.accessioned2014-09-24T08:41:52Zen_US
dc.date.available2014-09-24T08:41:52Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/43260en_US
dc.titleCharacterization of pathotypes among isolates of Xanthomonas axonopodis pv. manihotis in Colombiaen_US
dcterms.abstractCassava bacterial blight, caused by Xanthomonas axonopodis pv. manihotis (Xam) is a destructive disease occurring in most cassava growing-areas. Although Colombian isolates of Xam differ in DNA polymorphism and pathogenicity, no suitable host differentials have been identified to demonstrate physiological specialization. A set of 26 Xam isolates from three edaphoclimatic zones (ECZs) in Colombia was selected for inoculation on a set of 17 potential cassava differentials. Leaf inoculation and stem puncture were used in order to detect possible specific interactions between cultivars and isolates. Cultivar × isolate interaction was highly significant (P < 0·001) after stem inoculation, but not after leaf inoculation. The stem inoculation technique was selected as a method for resistance screening of cassava cultivars for bacterial blight resistance. A highly significant interaction was also detected when cultivar behaviour was rated as area under the disease progress curve (AUDPC) after stem inoculation. Different pathotypes were defined among the 26 isolates and differential cultivars were proposed to define the pathotypic composition of Xam populations in three ECZs in Colombia. The results should help to improve selection of sources of resistance to cassava bacterial blight.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2008-07-07en_US
dcterms.extentpp. 680-687en_US
dcterms.issued2000-12en_US
dcterms.languageenen_US
dcterms.licenseCopyrighted; all rights reserveden_US
dcterms.publisherWileyen_US
dcterms.subjectmanihot esculentaen_US
dcterms.subjectpathotypesen_US
dcterms.subjectpathogenicityen_US
dcterms.subjectxanthomonasen_US
dcterms.subjectpatotiposen_US
dcterms.subjectpatogenicidaden_US
dcterms.subjecthorticultureen_US
dcterms.subjectgeneticsen_US
dcterms.typeJournal Articleen_US

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