Foliar application of the leafcolonizing yeast Pseudozyma churashimaensis elicits systemic defense of pepper against bacterial and viral pathogens

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dc.contributor.authorGahyung Lee-
dc.contributor.authorSang-Heon Lee-
dc.contributor.authorKyung Mo Kim-
dc.contributor.authorChoong-Min Ryu-
dc.date.accessioned2017-08-29-
dc.date.available2017-08-29-
dc.date.issued2017-
dc.identifier.issn2045-2322-
dc.identifier.uri10.1038/srep39432ko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/16987-
dc.description.abstractYeast associates with many plant parts including the phyllosphere, where it is subject to harsh environmental conditions. Few studies have reported on biological control of foliar pathogens by yeast. Here, we newly isolated leaf-colonizing yeasts from leaves of field-grown pepper plants in a major pepper production area of South Korea. The yeast was isolated using semi-selective medium supplemented with rifampicin to inhibit bacterial growth and its disease control capacity against Xanthomonas axonopodis infection of pepper plants in the greenhouse was evaluated. Of 838 isolated yeasts, foliar spray of Pseudozyma churashimaensis strain RGJ1 at 10 8 cfu/mL conferred significant protection against X. axonopodis and unexpectedly against Cucumber mosaic virus, Pepper mottle virus, Pepper mild mottle virus, and Broad bean wilt virus under field conditions. Direct antagonism between strain RGJ1 and X. axonopodis was not detected from co-culture assays, suggesting that disease is suppressed via induced resistance. Additional molecular analysis of the induced resistance marker genes Capsicum annuum Pathogenesis-Related (CaPR) 4 and CaPR5 indicated that strain RGJ1 elicited plant defense priming. To our knowledge, this study is the first report of plant protection against bacterial and viral pathogens mediated by a leaf-colonizing yeast and has potential for effective disease management in the field.-
dc.publisherSpringer-Nature Pub Group-
dc.titleFoliar application of the leafcolonizing yeast Pseudozyma churashimaensis elicits systemic defense of pepper against bacterial and viral pathogens-
dc.title.alternativeFoliar application of the leafcolonizing yeast Pseudozyma churashimaensis elicits systemic defense of pepper against bacterial and viral pathogens-
dc.typeArticle-
dc.citation.titleScientific Reports-
dc.citation.number0-
dc.citation.endPage39432-
dc.citation.startPage39432-
dc.citation.volume7-
dc.contributor.affiliatedAuthorGahyung Lee-
dc.contributor.affiliatedAuthorSang-Heon Lee-
dc.contributor.affiliatedAuthorKyung Mo Kim-
dc.contributor.affiliatedAuthorChoong-Min Ryu-
dc.contributor.alternativeName이가형-
dc.contributor.alternativeName이상헌-
dc.contributor.alternativeName김경모-
dc.contributor.alternativeName류충민-
dc.identifier.bibliographicCitationScientific Reports, vol. 7, pp. 39432-39432-
dc.identifier.doi10.1038/srep39432-
dc.description.journalClassY-
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Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
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