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中国生物防治学报 ›› 2015, Vol. 31 ›› Issue (6): 921-929.DOI: 10.16409/j.cnki.2095-039x.2015.06.015

• 研究论文 • 上一篇    下一篇

葡萄霜霉病菌拮抗放线菌PY-1发酵条件优化

梁春浩, 臧超群, 安福涛, 刘长远, 白元俊, 于舒怡, 刘丽   

  1. 辽宁省农业科学院植物保护研究所, 沈阳 110161
  • 收稿日期:2015-05-11 出版日期:2015-12-08 发布日期:2015-12-17
  • 通讯作者: 刘长远, 白元俊
  • 作者简介:梁春浩(1979-),博士研究生,E-mail:liangchunhao99@126.com
  • 基金资助:
    辽宁省农业领域青年科技创新人才培养计划(2014020);公益性行业(农业)科研专项(201203035);葡萄育种及综合配套技术创新团队(2014204004);辽宁省科学事业公益研究基金(2014002018)

Optimization of Fermentation Conditions for Antagonistic Actinomycete PY-1 against Plasmopara viticola

LIANG Chunhao, ZANG Chaoqun, AN Futao, LIU Changyuan, BAI Yuanjun, YU Shuyi, LIU Li   

  1. Institute of Plant Protection, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China
  • Received:2015-05-11 Online:2015-12-08 Published:2015-12-17

摘要: 为探讨暗黑链霉菌Streptomyces atratus PY-1液体摇瓶发酵条件,提高其活性次级代谢产物的产量,以菌体生物量和发酵液抑制葡萄霜霉病菌Plasmopara viticola活性为指标,采用单因子试验和正交试验对菌株PY-1的最适发酵培养基成分及发酵条件进行优化。结果表明,菌株PY-1最适发酵培养基为玉米粉50 g/L、葡萄糖5 g/L、蛋白胨5 g/L、氯化铵5 g/L、氯化钠 0.5 g/L;最佳发酵培养条件为培养温度28 ℃、培养时间5 d、初始pH 7.0、250 mL三角瓶装液量90 mL、接种量体积分数5%、摇床转速180 r/min。在最佳发酵培养基和培养条件下,菌株PY-1发酵液抑菌率达到99.26%,抑菌能力提高8.35%。

关键词: 拮抗放线菌, 发酵条件优化, 正交试验, 葡萄霜霉病菌

Abstract: Authors used single factor experiments and orthogonal experiments to optimize the liquid fermentation conditions of Streptomyces atratus PY-1 to increase its antagonistic substance productivity against Plasmopara viticola. The result showed that the optimum medium was corn meal 50 g, glucose 5 g, peptone 5 g, NH4Cl 5 g, NaCl 0.5 g, in 1 liter of distilled water. The optimal incubation conditions were 28 ℃, fermentation time 120 h, initial pH 7.0, medium capacity 90 mL/250 mL, inoculation rate 5%, and rotate speed 180 r/min. The inhibitory activity of strain PY-1 fermentation solution was increased by 8.35% under the optimum fermentation medium and incubation conditions.

Key words: antagonistic actinomycete, fermentation condition optimization, orthogonal experiment, Plasmopara viticola

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