[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5423/PPJ.2009.25.4.389

Priming of Defense-Related Genes Confers Root-Colonizing Bacilli-Elicited Induced Systemic Resistance in Pepper

Yang, Jung-Wook (Industrial Biotechnology and Bioenergy Research Center, KRIBB)
Yu, Seung-Hun (Department of Applied Biology, Chungnam National University)
Ryu, Choong-Min (Industrial Biotechnology and Bioenergy Research Center, KRIBB)

Publication Information

The Plant Pathology Journal / v.25, no.4, 2009 , pp. 389-399 More about this Journal

Abstract

A group of beneficial plant bacteria has been shown to increase crop growth referring to as plant growth-promoting rhizobacteria (PGPR). PGPR can decrease plant disease directly, through the production of antagonistic compounds, and indirectly, through the elicitation of a plant defense response termed induced systemic resistance (ISR). While the mechanism of PGPR-elicited ISR has been studied extensively in the model plant Arabidopsis, it is less well characterized in crop plants such as pepper. In an effort to better understand the mechanism of ISR in crop plants, we investigated the induction of ISR by Bacillus cereus strain BS107 against Xanthomonas axonopodis pv. vesicatoria in pepper leaves. We focused on the priming effect of B. cereus strain BS107 on plant defense genes as an ISR mechanism. Of ten known pepper defense genes that were previously reported to be involved in pathogen defense signaling, the expression of Capsicum annum pathogenesis-protein 4 and CaPR1 was systemically primed by the application of strain BS107 onto pepper roots confirming by quantitative-reverse transcriptase PCR. Our results provide novel genetic evidence of the priming effect of a rhizobacterium on the expression of pepper defense genes involved in ISR.

Keywords

induced systemic resistance; pepper; PGPR; priming;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)
Times Cited By Web Of Science : 6 (Related Records In Web of Science)

Reference
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