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고추 근권에서 분리한 Bacillus subtilis J-24의 검은 곰팡이병원균 Alternaria alternata에 대한 길항력 및 고추의 초기 생육에 미치는 영향
주길재,김학윤,허상선,우철주,이인구 경북대학교 농업과학기술연구소 1999 慶北大農學誌 Vol.17 No.-
Thirty bacteria were isolated from the red pepper rhizosphere. The isolates were screened for antagonism to Alternaria alteranta causing red pepper black rot. Antagonistic bacterium No. J-24 was selected among the isolated bacteria and was identified as Bacillus subtilis based on morphological and physiological characterisitics and MIDI system. B. subtilis J-24 showed antifungal activities against A.alternata(inhibition percentage, 99%), Botrytis cinerea, Phytophthora capsici, Pythium ultimum, Colletotrichum gloeosporioides, Stemphylium botrysum. The growth of red pepper seedling was promoted as compared to control when the microbial inoculants was mixed in bed soil. In the mixed microbial inoculants bed soil, the leaf area of red pepper was increased of 15 percent, the hypocotyl weight 12 percent, the root length 12 percent, total dry weight 13 percent as compared to those grown in the genenal bed soil.