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荆芥茎枯病拮抗木霉菌筛选及其田间防效评价

易茜茜, 丁万隆, 李勇   

  1. 中国医学科学院北京协和医学院药用植物研究所 北京 100193
  • 收稿日期:2009-09-25 出版日期:2009-12-31
  • 通讯作者: 李勇(1976-), 男, 河北衡水人, 博士, 副研究员, 主要从事药用植物分子生物学及病害生物防治技术研究.
  • 作者简介:易茜茜(1984-), 女, 浙江温州人, 硕士, 主要从事药用植物病害生物防治研究.
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金项目(yz-08-09)

Screening of Antagonistic Trichodemar Strain Against Stem Blight of Schizonepeta tenuifolia Briq. and Evaluation of Its Biocontrol Effect

YI Xi-xi, DING Wan-long, LI Yong   

  1. Institute of Medicinal Plant, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
  • Received:2009-09-25 Published:2009-12-31

摘要: 通过室内对峙培养方法, 从16株候选木霉菌中筛选出对荆芥茎枯病菌有较强抑制活性的绿色木霉M3和Tv04-2菌株, 抑菌率分别高达83.2%和78.2%;田间试验发现, M3菌株对荆芥茎枯病害的田间防效明显高于Tv04-2菌株。结果表明, 本研究筛选出的绿色木霉M3菌株具有理想的生防潜力, 可作为防控荆芥茎枯病害的候选生防菌。

关键词: 荆芥, 茎枯病, 木霉, 田间防效

Abstract: Two Trichoderma viride strains, M3 and Tv04-2, were identified from sixteen Trichoderma strains that showing strongly antagonist activity to Phytophthora nicotianae of Schizonepeta tenuifolia Briq. by antagonistic tests, and the pathogen-inhibition ratio were 83.2% and 78.2%, respectively. Further research showed that, the bio-control effect of Trichoderma strain M3 against Phytophthora nicotianae was higher than Trichoderma strain Tv04-2 significantly. Results indicated that Tridroderma viride strain M3 having expecting biocontrol potential, and can be used as a biocontrol candidate to Phytophthora nicotianae of Schizonepeta tenuifolia Briq.

Key words: Sehizonepeta tenuifolia Briq., Stem blight, Trichoderma spp., Control effect

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引用本文

YI Xi-xi, DING Wan-long, LI Yong. Screening of Antagonistic Trichodemar Strain Against Stem Blight of Schizonepeta tenuifolia Briq. and Evaluation of Its Biocontrol Effect[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S2.054.

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               http://www.hbnxb.net/CN/Y2009/V24/IS2/240