Effects of jinggangmycin on peroxidase and esterase isozymes and phytotoxin from Rhizoctonia solani AG-1 IA, the causal agent of rice sheath blight

文献类型: 外文期刊

第一作者: Yang, Ying-Qing

作者: Yang, Ying-Qing;Li, Ming-Hai;Yang, Mei;Shu, Can-Wei;Zhou, Er-Xun;Yang, Ying-Qing;Li, Xiang-Min;Lan, Bo;Jian, Yan-Li;Li, Ming-Hai;Jian, Yan-Li

作者机构:

关键词: Rice sheath blight;Rhizoctonia solani ku AG-1 IA;Jinggangmycin;Peroxidase and esterase isozymes;Phytotoxin;Pathogenicity

期刊名称:TURKISH JOURNAL OF BIOCHEMISTRY-TURK BIYOKIMYA DERGISI ( 影响因子:0.401; 五年影响因子:0.378 )

ISSN: 0250-4685

年卷期: 2016 年 41 卷 4 期

页码:

收录情况: SCI

摘要: Objective: To explore the effects of jinggangmycin on the pathogenicity of rice sheath blight. Methods: The effects of jinggangmycin on peroxidase and esterase isozymes from Rhizoctonia solani Kuhn AG-1 IA were compared using non-denaturing polyacrylamide gel electrophoresis (PAGE). Rs-toxins were obtained from the improved Richard medium amended with jinggangmycin at different concentrations. Subsequently, bioassays of Rs-toxin, including virulence to rice tissues, seedling wilting and inhibition to the seed germination were conducted. Results: The results of PAGE showed that when the jinggangmycin concentration increased to 50 mu g/mL, two of peroxidase isozyme bands became apparently weaker compared with the controls, indicating that jinggangmycin could considerably weaken the activity of the perox-idase isozyme. In addition, three extra bands of esterase isozyme were induced by jinggangmycin when the concentration increased to 50 mu g/mL, indicating that jinggangmycin could affect the metabolism of esterase isozyme. The bioassays of Rs-toxin showed that jinggangmycin could weaken the virulence of Rs-toxin in rice tissues. Conclusion: It was concluded that the control role of jinggangmycin in rice sheath blight might be due to the effects of jinggangmycin on the peroxidase and esterase isozymes and Rs-toxin virulence.

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