华北农学报 ›› 2013, Vol. 28 ›› Issue (6): 204-208. doi: 10.7668/hbnxb.2013.06.035

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放线菌Yn168菌种鉴定及其发酵条件对抗病毒活性的影响

田兆丰1, 刘霆1, 张涛涛1, 李永丹2, 董丹1, 刘伟成1   

  1. 1 北京市农林科学院植物保护环境保护研究所,北京,100097;
    2 中国农业大学植物保护系,北京,100094
  • 收稿日期:2013-06-18 出版日期:2013-12-28
  • 通讯作者: 刘伟成(1959-),男,辽宁凌源人,研究员,博士,主要从事植物真菌病害及其生防微生物研究。
  • 作者简介:田兆丰(1966-),女,山西榆社人,副研究员,博士,主要从事植物病毒及其生物防治研究。
  • 基金资助:
    北京市自然科学基金项目(6122017);北京市农林科学院科技创新基金项目(KJCX201101001);北京市科技计划课题项目(Z121100001212002)

Strain Identification of Actinomycetes Yn168 and Influence of Its Fermentation Condition on Antiviral Activity

TIAN Zhao-feng1, LIU Ting1, ZHANG Tao-tao1, LI Yong-dan2, DONG Dan1, LIU Wei-cheng1   

  1. 1 Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;
    2 Department of Plant Protection, China Agriculture University, Beijing 100094, China
  • Received:2013-06-18 Published:2013-12-28

摘要: 通过对一株具有广谱抗病毒活性的放线菌菌株Yn168的形态、培养特征、生理生化特征及16S rDNA序列分析,对该放线菌进行了菌种鉴定,并研究了不同发酵条件对该菌发酵液抗病毒活性的影响。鉴定结果表明,该菌株为一株小链霉菌(Streptomyces parvus)。不同发酵条件下发酵液抗病毒活性检测表明,当种子培养24 h、种子液接种量为8%、培养温度为28℃、初始pH值为7.0、摇床转速为200 r/min时,发酵液对烟草花叶病毒(Tobacco mosaic virus,TMV)的抑制活性最强,枯斑抑制率在86%以上。

关键词: 放线菌, 菌种鉴定, 抗病毒活性, 发酵条件

Abstract: A actinomycete strain Yn168 with broad-spectrum antiviral activity was identified as Streptomyces parvus by culture characteristics, physiological and biochemical characteristics, and 16 S rDNA sequence analysis.Also, the influence of different fermentation conditions on antiviral activity of the fermentation broth was studied.The experiment results indicated that the antiviral activities of the fermentation broth was optimal when the strain age was 24 h,inoculum was 8%,temperature was 28℃,initial pH was 7.0,rotary shaker was at 200 r/min.And the vi-rus inhibition rate was above 86%by tobacco mosaic virus ( TMV) necrosis test.

Key words: Actinomycete, Strain identification, Antiviral activity, Fermentation conditions

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引用本文

田兆丰, 刘霆, 张涛涛, 李永丹, 董丹, 刘伟成. 放线菌Yn168菌种鉴定及其发酵条件对抗病毒活性的影响[J]. 华北农学报, 2013, 28(6): 204-208. doi: 10.7668/hbnxb.2013.06.035.

TIAN Zhao-feng, LIU Ting, ZHANG Tao-tao, LI Yong-dan, DONG Dan, LIU Wei-cheng. Strain Identification of Actinomycetes Yn168 and Influence of Its Fermentation Condition on Antiviral Activity[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(6): 204-208. doi: 10.7668/hbnxb.2013.06.035.

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