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黑木耳子实体胶质呈薄片状,吸附作用强,耳片分离难度较大。为提高分离成功率,得到纯正、健壮的母种,笔者进行了几项技术改进,收到了良好效果。 (一)改PDA培养基加抑菌剂的综合培养基 配方为:葡萄糖20g,磷酸氢二钾0.1g,蛋白胨2g,硫酸镁0.5g,酵母浸膏1g,琼脂20g,磷酸二氢钾0.46g,蒸馏水1000ml,另加浓度40ppm的青霉素或链霉素抑菌剂以控制细菌和酵母菌的污染。
Black fungus solid gum was flaky, strong adsorption, ear separation is more difficult. In order to improve the success rate of separation and obtain a pure and robust mother species, the author made several technical improvements and received good results. (A) to change the PDA medium plus antimicrobial agent integrated medium formula: glucose 20g, potassium hydrogen phosphate 0.1g, peptone 2g, magnesium sulfate 0.5g, yeast extract 1g, agar 20g, potassium dihydrogen phosphate 0.46g , Distilled water 1000ml, plus a concentration of 40ppm penicillin or streptomycin bacteriostat to control bacteria and yeast contamination.