Extracellular proteome of plant growth promoting-bacteria, Bacillus amyloliquefaciens KPS46 and its effect on enhanced growth promotion and induced systemic resistance on soybean | Extracellular proteome เนเธฅเธฐเธเธฅเนเธเธเธฒเธฃเธเธฑเธเธเธณเธเธฒเธฃเนเธเธฃเธดเธเนเธเธดเธเนเธเนเธฅเธฐเธเธฃเธฐเธเธธเนเธเธเธงเธฒเธกเธเนเธฒเธเธเธฒเธเธเธเธเธฑเนเธงเนเธซเธฅเธทเธญเธเธเธญเธ plant growth promoting-bacteria, Bacillus amyloliquefaciens KPS46
2008
Natthiya Buensanteai(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology) E-mail:[email protected], [email protected] | Dusti Athinuwat(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology) | Tiyakhon Chatnaparat(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology) | Yuen, Gary Y.(University of Nebraska-Lincoln, Lincoln (USA). Department of Plant Pathology) | Sutruedee Prathuangwong(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Plant Pathology)
Bacillus amyloliquefaciens KPS46 is gram positive and as a plant growth promoting bacteria, it has well document on enhance plant growth promotion and systemic protection against bacterial pustule and several diseases in soybean. The strain KPS46 promotes plant growth by synthesizing growth-stimulating phytohormones, secondary metabolite, extracellular protein to enhanced growth promotion and protect plant from pathogen infection. This study determined a protein secretion which allows prediction of the amino sequence involved in extracellular protein of KPS46. Using the 2-DE the extracellular protein of B. amyloliquefaciens KPS46 grown in NGB media was studied. The 20 were identified that are known to be secreted by various mechanisms. The extracellular proteome of KPS46 includes proteins from different functional classes and some proteins of yet unknown function. To our knowledge, this is the first two-dimensional extracellular proteome map of a PGPB, KPS46. Furthermore, evaluating the efficacy of KPS46 in promoting the growth of soybean, the strain increased in root elongation by up to 17 percent, shoot elongation by up to 35 percent, fresh weight by up to 32 percent and dry weight by up to 32 percent. And the strain reduce disease severity up to 55 percent. These results show the potential of using KPS46 to enhance growth of soybean, as well as use as a biocontrol agent for plant diseases management. Thus, the use of KPS46 may minimize the cost of control strategies and reduce the risk associated with the high use of chemical pesticides and fertilizer in commercial soybean production in the future.
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