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논문 기본 정보

자료유형
학술저널
저자정보
Sang Gyu Kim (서울대학교) Yelim Jang (서울대학교) Hye Young Kim (서울대학교) Young Jin Koh (순천대학교) Young Ho Kim (서울대학교)
저널정보
한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal Vol.26 No.4
발행연도
2010.12
수록면
340 - 345 (6page)

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초록· 키워드

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Two similar microbial fungicides (termed as MA and MB) developed in a Korean biopesticide company were analyzed and compared each other in their biocontrol activities against the phytophthora blight of chili pepper caused by Phytophthora capsici. MA and MB contained the microbe Paenibacillus polymyxa and Bacillus subtilis, respectively, with concentrations over those posted on the microbial products. In comparison of the isolated microbes (termed as MAP from MA and MBB from MB) in the antagonistic activities against P. capsici was effective, prominently against zoospore germination, while MBB only significantly inhibited the mycelia growth of the pathogen. Some effectiveness of MAP and MBB was noted in the inhibition of zoosporangium formation and zoospore release from zoosporangia; however, no such large difference between MAP and MBB was noted. In a pot experiment, MA reduced the severity of the phytophthora blight more than MB, suggesting that the disease control efficacy would be more attributable to the inhibition of zoospore germination than mycelia growth of P. capsici. These results also suggest that the similar microbes MA and MB targeting different points in the life cycle of the pathogen differ in the disease control efficacies. Therefore, to develop microbial fungicides it is required to examine the targeting points in the pathogen’s life cycle as well as the action mode of antagonistic microorganisms.

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Materials and Methods
Results
Discussion
Acknowledgement
References

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UCI(KEPA) : I410-ECN-0101-2012-481-004361579