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

Simple item page
cg.coverage.countryColombia
cg.coverage.iso3166-alpha2CO
cg.coverage.regionSouth America
cg.identifier.doihttps://doi.org/10.1046/j.1365-3059.2000.00513.xen
cg.isijournalISI Journalen
cg.issn1365-3059en
cg.issue6en
cg.journalPlant Pathologyen
cg.reviewStatusPeer Reviewen
cg.subject.ciatCASSAVAen
cg.subject.ciatPESTS AND DISEASESen
cg.subject.ciatPLANT BREEDINGen
cg.volume49en
dc.contributor.authorRestrepo, S.en
dc.contributor.authorDuque E., Myriam Cristinaen
dc.contributor.authorVerdier, Valerie M.en
dc.date.accessioned2014-09-24T08:41:52Zen
dc.date.available2014-09-24T08:41:52Zen
dc.identifier.urihttps://hdl.handle.net/10568/43260
dc.titleCharacterization of pathotypes among isolates of Xanthomonas axonopodis pv. manihotis in Colombiaen
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
dcterms.accessRightsOpen Access
dcterms.available2008-07-07
dcterms.extentpp. 680-687en
dcterms.issued2000-12
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherWileyen
dcterms.subjectmanihot esculentaen
dcterms.subjectpathotypesen
dcterms.subjectpathogenicityen
dcterms.subjectxanthomonasen
dcterms.subjectpatotiposen
dcterms.subjectpatogenicidaden
dcterms.subjecthorticultureen
dcterms.subjectgeneticsen
dcterms.typeJournal Article

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