| 水稻纹枯病菌毒素致病机理研究 |
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| 引用本文： | 陈夕军,徐艳,童蕴慧,孟令军,纪兆林,徐敬友.水稻纹枯病菌毒素致病机理研究[J].植物病理学报,2009,39(4):439-443. |
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| 作者姓名： | 陈夕军 徐艳 童蕴慧 孟令军 纪兆林 徐敬友 |
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| 作者单位： | 扬州大学园艺与植物保护学院, 扬州 225009 |
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| 摘 要： | Crude toxin of Rhizoctonia solani(RS-toxin) caused obvious damage to the cell of rice.The permeability of cell membrane changed and phosphorous permeated exterior when the sheath and leaves were treated with RS-toxin.After 12 hours treated with RS-toxin,chloroplast membrane was damaged and lamella was relaxed and swollen,with some cavities in the chloroplast.Treated with RS-toxin for 36 hours,the chloroplast was disassembled,other organelles became unclear and disappeared such as mitochondria,and some parts of the cell wall thinned and loosed.Treated with 10 times diluted RS-toxin,the chlorophyll content in the rice plants was reduced over 85%.With higher RS-toxin concentration and longer treatment time,the lower the chlorophyll content became.
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Pathogenic mechanism of phytotoxin produced by Rhizoctonia solani, the causal pathogen of rice sheath blight |
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| CHEN Xi-jun,XU Yan,TONG Yun-hui,MENG Ling-jun,JI Zhao-lin,XU Jing-you.Pathogenic mechanism of phytotoxin produced by Rhizoctonia solani, the causal pathogen of rice sheath blight[J].Acta Phytopathologica Sinica,2009,39(4):439-443. |
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| Authors: | CHEN Xi-jun XU Yan TONG Yun-hui MENG Ling-jun JI Zhao-lin XU Jing-you |
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| Institution: | Horticulture and Plant Protection College, Yangzhou University, Yangzhou 225009, China |
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| Abstract: | Crude toxin of Rhizoctonia solani (RS-toxin) caused obvious damage to the cell of rice. The permeability of cell membrane changed and phosphorous permeated exterior when the sheath and leaves were treated with RS-toxin. After 12 hours treated with RS-toxin, chloroplast membrane was damaged and lamella was relaxed and swollen, with some cavities in the chloroplast. Treated with RS-toxin for 36 hours, the chloroplast was disassembled, other organelles became unclear and disappeared such as mitochondria, and some parts of the cell wall thinned and loosed. Treated with 10 times diluted RS-toxin, the chlorophyll content in the rice plants was reduced over 85%. With higher RS-toxin concentration and longer treatment time, the lower the chlorophyll content became. |
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| Keywords: | Rhizoctonia solani toxin pathogenic mechanism |
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