ISR meets SAR outside : additive action of the endophyte Bacillus pumilus INR7 and the chemical inducer, benzothiadiazole, on induced resistance against bacterial spot in field-grown pepper

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dc.contributor.authorHwe-Su Yi-
dc.contributor.authorJ W Yang-
dc.contributor.authorChoong-Min Ryu-
dc.date.accessioned2017-04-19T09:39:29Z-
dc.date.available2017-04-19T09:39:29Z-
dc.date.issued2013-
dc.identifier.issn1664462X-
dc.identifier.uri10.3389/fpls.2013.00122ko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/11310-
dc.description.abstractInduced resistance has been recognized as an attractive tool for plant disease management in modern agriculture. During the last two decades, studies on chemically- and biologically elicited induced resistance have revealed previously unknown features of the plant defense response including defense priming. As a biological trigger for induced resistance, plant growth-promoting rhizobacteria (PGPR are a group of root-associated bacteria that can reduce plant disease severity and incidence, and augment plant growth and yield under greenhouse and field conditions. We evaluated the potential of an endophytic PGPR, Bacillus pumilus INR7, to induce systemic resistance against bacterial spot caused by Xanthomonas axonopodis pv. vesicatoria in pepper. Trials in the greenhouse showed significantly less symptom development in pepper plants inoculated with strain INR7 compared to a water treatment. Furthermore, a single dipping treatment with INR7 before transplantation of pepper plants into the field elicited an induced systemic resistance response against bacterial spot caused by artificially infiltration of X. axonopodis pv. vesicatoria and even against naturally occurring bacterial spot disease. We identified an additive effect on induced resistance after administration of a combination treatment composed of strain INR7 with a chemical inducer, benzothiadiazole (BTH in the field. The combination treatment stimulated expression of pepper defense marker genes CaPR1, CaTin1, and CaPR4 to a greater extent than did treatment with either agent alone. Similar experiments conducted with tobacco revealed no additive effects under field conditions. Interestingly, co-application of plants with INR7 lifted the growth repressing effect of BTH. Application of BTH onto pepper and tobacco did not affect rhizosphere colonization but supported a higher population density inside plant roots when compared to water-treated control plants. Our results indicate that PGPR can be used in combination with BTH for increased induced resistance capacity under field conditions.-
dc.publisherFrontiers Media Sa-
dc.titleISR meets SAR outside : additive action of the endophyte Bacillus pumilus INR7 and the chemical inducer, benzothiadiazole, on induced resistance against bacterial spot in field-grown pepper-
dc.title.alternativeISR meets SAR outside : additive action of the endophyte Bacillus pumilus INR7 and the chemical inducer, benzothiadiazole, on induced resistance against bacterial spot in field-grown pepper-
dc.typeArticle-
dc.citation.titleFrontiers in Plant Science-
dc.citation.number0-
dc.citation.endPage122-
dc.citation.startPage122-
dc.citation.volume4-
dc.contributor.affiliatedAuthorChoong-Min Ryu-
dc.contributor.alternativeName이외수-
dc.contributor.alternativeName양정욱-
dc.contributor.alternativeName류충민-
dc.identifier.bibliographicCitationFrontiers in Plant Science, vol. 4, pp. 122-122-
dc.identifier.doi10.3389/fpls.2013.00122-
dc.subject.keywordBiological control-
dc.subject.keywordDefense priming-
dc.subject.keywordISR-
dc.subject.keywordPGPR-
dc.subject.keywordSAR-
dc.subject.localBiological control-
dc.subject.localDefense priming-
dc.subject.localISR-
dc.subject.localPGPR-
dc.subject.localSAR-
dc.description.journalClassY-
Appears in Collections:
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
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