灭活原生质体融合技术提高豆豉纤溶酶菌产酶量

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以豆豉纤溶酶产生菌株蜡状芽孢杆菌UV-101和MW-101作为亲本菌株,首先对亲本原生质体进行紫外灭活,然后用PEG(6000)作为融合剂对灭活双亲进行原生质体融合。通过对再生平板上长出的融合子进行平板初筛和摇瓶复筛,最终获得一株高产菌株PF-101,其酶活比亲本菌株分别提高了74.47%和86.36%,并且该菌株具有良好的遗传稳定性。
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