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KMID : 0364820130490040398
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Korean Journal of Microbiology
2013 Volume.49 No. 4 p.398 ~ p.402
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Biocontrol of Red Pepper Using Mixed Culture of Antagonistic Bacterium and Phosphate Solubilizing Yeast
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Lee Gun-Woong
Min Byung-Dae
Park Su-Jeong
Jheong Won-Hwa
Go Eun-Byeul
Lee Kui-Jae
Chae Jong-Chan
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Abstract
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This study was to investigate beneficial effects of microbial mixture on red pepper which was capable of promoting
plant growth by solubilizing insoluble phosphate as well as protecting plants from pathogenic attack. Saccharomyces
sp. L13 was isolated for phosphate solubilizing activity on aluminium phosphate, tricalcium phosphate, calcium
hydrophosphate, and magnesium hydrophosphate. On the other hand, Bacillus sp. L32 was isolated for antagonistic
activity against Phytophthora capsisi and Colletotrichum gloeosporioides, causing Phytophthora blight and
Anthracnose disease in pepper, respectively. The strain L32 exhibited antagonistic activities both under dual culture
assays and detached leaves assays. The each strain under the condition of mixed cultivation exhibited the same
growth rates as one under pure cultivation. In greenhouse study, the mixed culture showed the both effect of plant
growth promotion and reduction of disease symptom development against P. capsisi and C. gloeosporioides
providing a potential as effective microbial agent for plant husbandry.
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KEYWORD
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Bacillus, Saccharomyces, biocontrol, phosphate solubilizing, red pepper
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