RICE SCIENCE

• 研究报告 • 上一篇    下一篇

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

GAO Dong-ying 1, ZHOU Yi-hong 2, HUANG Xue-qing 1, SUN Li-hua 1, LIU Ai-min 1

  

  1. 1Institute of Agribiological Genetics and physiology, Jinagsu Academy of Agricultural Sciences, Nanjing 210014, China<SPAN style=
  • 收稿日期:2003-09-01 修回日期:1900-01-01 出版日期:2004-06-30 发布日期:2004-06-30

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(O2 ) 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 O2 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.

关键词: bacterial leaf blight, somaclonal mutant, active oxygen, resistance, cell level