잿빛 곰팡이병의 미생물학적 제어 = Biological Control of Blue Mold by Microorganism

다국어 초록 (Multilingual Abstract)

In order to screen the antagonistic bacteria which inhibit the growth of the plant pathogen, Penicillum expansum，we isolated an effective bacterial strain and investigated into the antifungal activity of the antagonist and it's identification. The eleven strains of bacteria which strongly inhibited P. expansum were isolated from the nature, and the best antagonistic bacterial strain designated as KB22, was selected. The antagonistic strain KB22 was identified to be the genus Bacillus subtilis based on morphological and biochemical characterization. The KB22 showed 55.9% of antifungal activity against the growth of P. expansum. By the treatment of the culture broth and the heat treated culture filtrate of it, the B. subtilis KB22 showed 90% and 15% of antifungal activity, respectively.