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Position: Home > Articles > Resistance to Bacterial Leaf Blight in a Somaclonal Rice Mutant HX-3 at Cellular Level Rice Science 2004,11 (4) 186-190

Resistance to Bacterial Leaf Blight in a Somaclonal Rice Mutant HX-3 at Cellular Level

作者：

GAO Dong-ying;ZHOU Yi-hong;HUANG Xue-qing;SUN Li-hua;LIU Ai-min

单位：

Institute of Agribiological Genetics and physiology; Jinagsu Academy of Agricultural Sciences; China; Nanjing 210014

关键词：

bacterial leaf blight;somaclonal mutant;active oxygen;resistance;cell level

摘要：

The interaction between rice host and its pathogen Xanthomonas oryzae pv. oryzae (Xoo) at cellular level was studied by using a resistant somaclonal mutant HX-3 and its susceptable donor Minghui 63. After inoculation with Xoo strain Zhe 173 (Chinese pathotype IV), the activity of superoxide dismutase (SOD) and peroxidase (POD) in the callus of Minghui 63 was increased dramatically, and the active oxygen(O_2~·) was produced at a higher rate; Meanwhile, the callus grew slowly with the reduction of protein content. Compared to the activity of SOD and POD, the production rate of O_2~· and the fresh weight in HX-3 callus varied little after the inoculation. It could be proposed that there were great differences between the resistance of HX-3 and Mighui 63 at cellular level. There was no difference detected concerning resistance to bacterial leaf blight in HX-3 between the plant and the callus.

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Resistance to Bacterial Leaf Blight in a Somaclonal Rice Mutant HX-3 at Cellular Level

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