【摘要】 解淀粉芽孢杆菌4-3是一株性能优良的植物内生菌，可用作良好的微生态制剂原材料。为优化该菌株的培养条件，以内生菌4-3的活菌数为评价指标，采用单因素试验对其液体发酵的培养条件进行了优化。优化后的培养条件为：培养温度32℃，初始pH值7.2，培养转速220 r/min，接种量3%，培养56 h，该条件下可获得较高浓度的菌体。更多还原

【Abstract】 Bacillus amyloliquefaciens 4-3 is an excellent plant endophyte that can be used as a good raw material for microecological preparations. For this reason,it is important to optimize the culture conditions of this strain. The number of viable bacteria of strain 4-3 in this study was the evaluation index, and the culture conditions of the liquid fermentation were optimized by single factor experiment. The optimized culture condition was as follows: incubating temperature 32°C, initial pH value 7.2, rotation speed 220 r/min, inoculum concentration 3% and incubating 56 h,under which higher concentrations of Bacillus amyloliquefaciens could be obtained.更多还原