한국환경농학회지 (Korean Journal of Environmental Agriculture)
- 제15권4호
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- Pages.399-405
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- 1996
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
고추역병균(疫病菌)(Phytophthora capsici)의 생물학적(生物學的) 방제(防除);II. 항균물질(抗菌物質)의 분리(分離) 정제(精製) 및 항균활성(抗菌活性)
Biological Control of Phytophthora Blight of Red-pepper Caused by Phytophthora capsici.;II. Isolation and Antifungal Activity of the Substances
- Chang, Yoon-Hee (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University) ;
- Chang, Sang-Moon (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University) ;
- Choi, Jyung (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University) ;
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Lee, Dong-Hoon
(Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University)
- 발행 : 1996.12.30
초록
고추역병균(疫病菌)인 Phytophthora capsici에 대한 생물학적(生物學的) 방제(防除)를 위하여 Pseudomonas sp. A-183균주(菌株)의 배양액(培養液)으로 부터 3가지 화합물(化合物)을 분리(分離) 정제(精製)한 후(後) 항균활성(抗菌活性)을 조사(調査)하여 미생물농약(微生物農藥)의 개발(開發)에 대한 가능성(可能性)을 검정(檢定)하였다. 배양여액(培養濾液)을 pH 2로 조정하여 ethyl acetate로 추출(抽出)한 경우에 항균활성(抗菌活性)이 가장 높았으며, 조추출물(粗抽出物)
In the culture medium, the three antifungal fractions against P. capsici were separated by Sephadex G-25 column chromatography and Silica-gel chromatography. The substance A in white powder and the substance B in sticky oil were isolated by ethyl acetate : acetone mixture(7 : 3), and the substance C in yellow powder was isolated by chloroform : ethyl acetate mixture(95 : 5). The crude extract by ethyl acetate from the culture medium acidified to pH 2 was known to inhibit completely the growth of P. capsici at the level of
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