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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2005.3
- 수록면
- 68 - 72 (5page)
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The production of antibiotic substances by Serratia plymuthica A21-4 was greatly enhanced by modifying components of a growth medium. When the minimal medium containing K₂HPO₄ 0.7%, KH₂PO₄ 0.2%, (NH₄)2SO₄ 0.1%, MgSO₄ 0.01% was used as basal medium, the best carbon source for antibiotic production was glycerol and the most favorable nitrogen source was ammonium sulfate. The modified medium for antibiotic production also increased colonization ability of A21-4 on pepper root and in the rhizosphere soil. When the cells of A21-4 were suspended in modified medium, the population density of A21-4 on pepper root was 10-100 times higher than that suspended in 0.1M MgSO₄. The population density of A21-4 on root did not decrease under 10? cfu/groot up to 21 days after treatment although the inoculum of A21-4 was reduced to 10? cell/ml. Similar tendency was also observed in the rhizosphere soil. Consequently, Phytophthora blight of pepper was successfully controlled by A21-4 with 10? cell/ml suspended in the modified buffer solution instead of 10? cfu/ml suspended in 0.1M MgSO₄.
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Material and methods
Results
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UCI(KEPA) : I410-ECN-0101-2009-481-017570318