J4 ›› 2010, Vol. 23 ›› Issue (6): 39-43.

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绿色木霉LTR-2的ATMT插入突变及5,6-二氢-6-戊基-2H-吡喃-2-酮高产菌株的筛选

 扈进冬1, 周红姿1, 张彦杰2, 杨合同1,2,3*, 陈凯1, 李纪顺1   

  1. 1.山东省科学院中日友好生物技术研究中心,山东 济南 250014; 2.山东理工大学生命科学学院,山东 淄博 255049; 3.山东省科学院生物研究所,山东 济南 250014
  • 收稿日期:2010-06-22 出版日期:2010-12-20 发布日期:2010-12-20
  • 基金资助:

    国家“863”计划现代农业技术领域重大项目资助(2006AA10A211)

nsertional Mutation of Trichoderma viride LTR-2 by ATMT and Screening of HighYield Strains of 5,6-dihydro-6-pentyl-2H-pyran-2-one

 HU Jin-Dong1, ZHOU Hong-Zi, ZHANG Yan-Jie2, YANG He-Tong1,2,3*, CHEN Kai1, LI Ji-Shun1   

  1. 1.Biotechnology Center of Shandong Academy of Sciences, Jinan 250014, China;
    2.School of Life Sciences, Shandong University of Techology, Zibo 255049, China;
    3.Biology Institute of Shandong Academy of Sciences, Jinan 250014, China
  • Received:2010-06-22 Online:2010-12-20 Published:2010-12-20

摘要:

         通过土壤杆菌介导的T-DNA转化方法,利用土壤杆菌菌株携带的Ti质粒,对绿色木霉LTR-2进行插入突变,获得木霉LTR-2突变体共400株。以串珠镰孢菌为指示菌,采用抑菌圈方法,从中筛选吡喃酮高产突变体6株,PCR和探针杂交证实,T-DNA序列已经插入到木霉LTR-2基因组。经GC-MS分析发现,其中一株突变体T-54在PDA培养基上产生的吡喃酮含量较高,在分生孢子中的含量达到了2.62 mg/g,比出发菌株提高9倍。

关键词: 插入突变, 吡喃酮, 气相色谱-质谱

Abstract:

        We performed insertional mutation for Trichoderma viride LTR-2 by Agrobacteria tuefaxiensmediated transformation and obtained 400 mutants. We selected six highyield mutants from these four hundred mutants by powder bacteriostatic circle method. These mutants were identified and analyzed by gas chromatography and mass spectrometric detection. The content of 5,6-dihydro-6-pentyl-2H-pyran-2-one is 2.62 mg/g, which is produced by one mutant T-54 in a PDA plate and is nine times as that by LTR-2.

Key words: insertional mutation, 5,6-dihydro-6-pentyl-2H-pyran-2-one, GC/MS

中图分类号: 

  • S432.2