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http://dx.doi.org/10.5423/PPJ.2006.22.4.360

Bacillus vallismortis Strain EXTN-1 Mediated Systemic Resistance against Potato virus Y and X in the Field  

Park, Kyung-Seok (Plant Pathology Division, National Institute of Agricultural Science and Technology(NIAST), RDA)
Paul, Diby (Plant Pathology Division, National Institute of Agricultural Science and Technology(NIAST), RDA)
Ryu, Kyung-Ryl (Organic Farming Technology Division, NIAST, RDA)
Kim, Eun-Yung (Yeoju-gun Agricultural Technology Extension Center)
Kim, Yong-Ki (Plant Pathology Division, National Institute of Agricultural Science and Technology(NIAST), RDA)
Publication Information
The Plant Pathology Journal / v.22, no.4, 2006 , pp. 360-363 More about this Journal
Abstract
Efficacy of plant growth promoting rhizobacteria(PGPR) Bacillus vallismortis strain EXTN-1 has been proved in eliciting induced systemic resistance(ISR) in several crops. The present paper described the beneficial effects of EXTN-1 in potato as increase in yield and chlorophyll content, and plant protection against Potato Virus Y and X(PVY & PVX). EXTN-1 induced systemic resistance to the plants resulting in significant disease suppression in the field. Also the plants under treatment with EXTN-1 had higher chlorophyll content. The bacterized plants had significantly higher yields over the untreated control plants. The strain induced activation of defense genes, PR-1a and PDF 1.2 in transgenic tobacco model, which indicated the possible role of both SA, and JA pathways in EXTN-1 mediated plant protection against crop diseases.
Keywords
Bacillus vallismortis; Induced Systemic Resistance; Potato Virus;
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