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中国农学通报

中国农学通报 ›› 2008, Vol. 24 ›› Issue (7): 375-377.

所属专题： 水稻

• 植物保护 农药 • 上一篇    下一篇

枯草芽孢杆菌Xi-55对稻曲病菌的拮抗活性测定

李竞生,张 敏,彭化贤,代海霞   

  • 收稿日期:2008-05-09 修回日期:2008-05-26 出版日期:2008-07-05 发布日期:2008-07-05

Mensuration of the Antibiotic Activity on Bacillus subtilis Xi-55 Against Ustilaginoidea virens

Li Jingsheng, Zhang Min, Peng Huaxian, Dai Haixia   

  • Received:2008-05-09 Revised:2008-05-26 Online:2008-07-05 Published:2008-07-05

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摘要： 利用枯草芽孢杆菌Xi-55处理稻曲病菌和水稻种子，测定对稻曲病菌的孢子萌发影响、抑菌率、致畸性以及对水稻的促生性作用。结果表明，Xi-55的发酵液对稻曲病菌平均抑制率为54.64%，对稻曲病菌分生孢子萌发平均抑制率为69.33%，对水稻促生作用不明显。

关键词: 土壤肥力特性, 土壤肥力特性, 中药材种植区, 岩溶

Abstract: By Bacillus subtilis Xi-55 against Ustilaginoidea virens, its antagonistic activity was tested in vitro. Its inhibition rate, deformation effect, and effect on spore germination of Xi-55 with strong antagonistic effect and its growth-promoting effect on rice were studied. The results showed that the average inhibition rate of the metabolites of Xi-55 against U.virens was 54.64%. The average inhibition rate against spore germination of U.virens was 69.33%, while the growth-promoting effect on rice of Xi-55 was opposite.

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