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Understanding the molecular mechanisms of host parasite interactions should facilitate the development of novel strategies to control plant diseases.…… 《分子植物育种》2007,5(2):173-174
Understanding the molecular mechanisms of host and parasite interactions should facilitate the development of novel strategies to control plant diseases. Host interactions with biotrophic and hemi-biotrophic pathogens are known to follow a gene-for-gene specificity. The plant expresses a resistance (R) gene that is effective in preventing disease in response to pathogen races expressing the corresponding avirulence gene. We are studying the interaction mechanisms of the R gene, Pi-ta, in rice with the corresponding avirulence gene, A VR-Pita, found in the hemi-biotrophic pathogen, Magnaporthe oryzae (formerly Magnaporthe grisea). Pi-ta is a putative cytoplasmic receptor with a centrally localized nucleotide-binding site and leucine rich domain at the carboxyl terminus (Bryan et al., 2000; Jia et al., 2000). AVR-Pita is predicted to be a metalloprotease (Jia et al., 2006b). The putative processed protein, AVR-Pita176, has been shown to interact with the Pi-ta protein (Bryan et al., 2000; Jia et al., 2000). 相似文献
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