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http://dx.doi.org/10.5423/RPD.2005.11.2.162

Disease Progress of Gray Blight on Tea Plant and Selection of a Biocontrol Agent from Phylloplanes of the Plant  

Oh Soon-Ok (Department of Plant Medicine, Sunchon National University)
Kim Gyoung Hee (Department of Plant Medicine, Sunchon National University)
Lim Kwang-Mi (Department of Department of Biology, Sunchon National University)
Hur Jae-Seoun (Department of Department of Environmental Education, Sunchon National University)
Koh Young Jin (Department of Plant Medicine, Sunchon National University)
Publication Information
Research in Plant Disease / v.11, no.2, 2005 , pp. 162-166 More about this Journal
Abstract
Disease progress of gray blight of tea (Camellia sinensis O. Kuntze) cv. Yabukita was investigated during the growing season of 2004 at Boseong Tea Experiment Station, Jeonnam Agriculture Research and Extension Service, Boseong, Jeonnam. The disease began to occur from late June and peaked in late July. Antagonistic bacteria against Pestalotiopsis longiseta, the causal pathogen of causing gray blight of tea plants were isolated from phylloplanes of tea plants. An isolate BD0310 which showed the strongest antifungal activity against the pathogen but nonpathogenic to tea plants was selected as a biocontrol agent for the gray blight. The isolate was identified as Bacillus subtilis based on its cultural, morphological, and biochemical characterization and 16S rDNA sequence analysis.
Keywords
Bacillus subtilis; Biocontrol; Gray blight; Pestalotiopsis longiseta; Tea plant;
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