버섯 세균갈색무늬병균(Pseudomonas tolaasii)에 대한 길항세균 Pseudomonas azotoformans HC5의 대량배양을 위한 최적 배양조건
Optimum cultivation conditions for mass production of antagonistic bacterium Pseudomonas azotoformans HC5 effective in antagonistic of brown blotch disease caused by Pseudomonas tolaasii
This study was conducted to investigate optimum conditions for mass production of antagonistic microbes Pseudomonas azotoformans HC5. P. azotoformans HC5 is a potent biological control agent to control brown blotch disease caused by Pseudomonas tolaasii. This markedly showed the antagonistic activity against P. tolaasii, the most destructive pathogen of cultivated mushrooms. To define the optimum conditions for the mass production of the P. azotoformans HC5, we have investigated optimum culture conditions and effects of various nutrient source on the bacterial growth. The optimum initial pH and temperature were determined as pH 6.0 and 15oC, respectively. The optimal concentration of medium elements for the growth of pathogen inhibitor bacterium was determined as follows: 0.6% adonitol, 1.5% yeast extract, 0.8% NH4H2PO4, 5mM MgSO4, and 0.2% asparagine.
목차
서 론 재료 및 방법 공시균주 및 배양 배양적온 초기 pH의 영향 영양원에 따른 길항미생물의 증식에 미치는 영향 결과 및 고찰 온도와 pH에 따른 영향 탄소원에 따른 영향 무기질소원에 따른 영향 유기질소원에 따른 영향 아미노산에 따른 영향 무기염류에 따른 영향 길항미생물 HC5의 최적 배양조건 적 요 감사의 말씀 References