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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (8): 240-242.

所属专题： 水稻

• 植物保护 农药 • 上一篇    下一篇

禾长蠕孢菌代谢物抑制水稻细菌性条斑病菌

朱凯,段桂芳,张建萍,余柳青   

  • 收稿日期:2009-11-24 修回日期:2010-01-04 出版日期:2010-04-20 发布日期:2010-04-20
  • 基金资助:

    中央级公益性科研院所专项资金项目;国家863项目;浙江省重大科技计划项目

Biocontrol of Rice Bacterial Leaf Stripe by filtrate and Metabolites of Helminthosporium gramineum Rabenhf．sp．echinochlone

Zhu Kai, Duan Guifang, Zhang Jianping, Yu Liuqing   

  • Received:2009-11-24 Revised:2010-01-04 Online:2010-04-20 Published:2010-04-20

PDF (PC)

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摘要：

为了充分研究利用现有的生防菌菌种资源，进行了禾长蠕孢菌（Helminthosporium gramineum Rabenhf．sp．echinochlone，HGE）发酵液及发酵液粗提物防治水稻细菌性条斑病的初步探讨。采用平板打孔灌药法和试管二倍稀释法比较了禾长蠕孢菌发酵原液、粗毒素及对照药剂20%噻菌铜、72%农用链霉素和叶枯唑对水稻细条病菌的抑制效果。试验结果表明，禾长蠕孢菌的代谢产物粗毒素对水稻细条病菌的抑制效果最好。

关键词: Fe元素, Fe元素, 西红柿, 辣椒, 地瓜叶, 沼液

Abstract:

Helminthosporium gramineum Rabenhf．sp．echinochlone (HGE), a promising fungus for controlling barnyardgrass, was evaluated for biocontrol of rice bacterial leaf stripe caused by Xanthomonas oryzae pv oryzacola. The filtrate and crude toxins (ethyl acetate extract of culture filtrate of HGE) of HGE were tested with the method of stiletto, and measured in MIC(Minimun Inhibitory Concentration) and MBC(Minimal Bacteriocidal Concentration), compared with the checks of 20% thiodiazole-copper, 72% streptomycin sulfate and bismerthlazol. The result indicated that the biocontrol effect from the treatment of the crude toxins of HGE was much better than those of other treatments.