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中国农学通报 ›› 2017, Vol. 33 ›› Issue (19): 80-85.doi: 10.11924/j.issn.1000-6850.casb16060150

所属专题: 生物技术

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

超富集植物体降解菌枯草芽孢杆菌BS-C3产纤维素酶条件研究

包文庆1,2,罗学刚2,杨 圣1,2   

  1. (1西南科技大学生命科学与工程学院,四川绵阳 621010;2生物质材料教育部工程研究中心,四川绵阳 621010)
  • 收稿日期:2016-06-28 修回日期:2017-05-31 接受日期:2016-08-25 出版日期:2017-07-11 发布日期:2017-07-11
  • 通讯作者: 罗学刚
  • 基金资助:
    国家核设施退役及放射性废物治理科研重点项目(2014ZG6104)。

The Cellulase Producing Conditions of Hyperaccumulation Plant Degradation Bacterium Bacillus subtilis BS-C3

Bao Wenqing1,2, Luo Xuegang2, Yang Sheng1,2   

  1. (1College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang Sichuan 621010;2 Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang Sichuan 621010)
  • Received:2016-06-28 Revised:2017-05-31 Accepted:2016-08-25 Online:2017-07-11 Published:2017-07-11

摘要: 旨在通过研究一株能够降解超富集植物的枯草芽孢杆菌枯草亚种BS-C3菌株的产纤维素酶条件,为其降解超富集植物体提供一定参考。通过设置不同碳源、氮源、接种量、培养温度、装液量、培养基初始pH和培养时间等生长条件,进行单因素和正交试验。实验结果表明菌株BS-C3产纤维素酶的最佳条件是:以1%的CMC-Na为碳源,1%的蛋白胨和1%的酵母粉为氮源,接种量为3%,培养温度为37℃,装液量为70 mL,初始pH为8,其滤纸酶活FPA和羧甲基纤维素酶活CMCA分别在第4天和第5天时达到最大值223.74 U/mL和257.67 U/mL。该试验获得了菌株BS-C3产纤维素酶的最佳条件。

关键词: 枣果黑斑病, 枣果黑斑病, 树龄, 间作模式, 结果方向, 灌溉方式, 田间防治

Abstract: This study aims at providing references for degrading hyperaccumulation plants by researching cellulase production conditions of a capable of degrading hyperaccumulator Bacillus subtilis subspecies BSC3. By setting different carbon sources, nitrogen sources, inoculation amount, culture temperature, liquid volume, initial pH value and culture time of growing conditions, single factor and orthogonal experiment were carried out. The experiment results showed that the optimum condition for producing cellulase by strain BS-C3 was 1% CMC-Na as carbon source, 1% peptone and 1% yeast powder as nitrogen source, inoculation quantity was 3%, temperature was 37℃, liquid volume was 70 mL, the initial pH value was 8, the filter paper enzyme activity FPA and carboxymethyl cellulase activity CMCA reached the maximum value of 223.74 U/mL and 257.67 U/mL on the fourth day and the fifth day respectively. We obtained the best condition of strain BS-C3 producing cellulase.

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