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author:

高珍娜 (高珍娜.) [1] | 吕文静 (吕文静.) [2] | 谢航 (谢航.) [3] | 林娟 (林娟.) [4]

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PKU CSCD

Abstract:

采用羧甲基纤维素(CMC)平板初筛和50℃培养,筛选到一株纤维素酶活力较高的耐高温霉菌MY菌株,其CMC培养基最适pH为6.0,培养温度为40℃,最佳产酶时间为5d.以MY菌株为出发菌株,分别采用紫外线和硫酸二乙酯诱变,以透明圈直径与菌落直径的比值(HC值)提高30%以上或菌落形态发生明显变异为筛选指标,共筛选到97株突变株;通过测定粗酶液CMC酶活力,从中筛选出29株CMC酶活力提高30%以上的菌株;结合突变菌株的传代稳定性实验,最后筛选得到1株性能优良的霉菌MY004突变株,其CMC酶活力比原始菌株MY提高了80.6%.

Keyword:

CMC酶活力 筛选 纤维素降解菌 育种

Community:

  • [ 1 ] 福州大学生物科学与工程学院

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Source :

福州大学学报(自然科学版)

ISSN: 1000-2243

CN: 35-1337/N

Year: 2010

Issue: 03

Volume: 38

Page: 450-455

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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