Genetic Analysis of Rice Mutants Identifi es a New Locus at the Pi-ta Region Controlling Pathogen Recognition  

作　　者：Y.L. Jia 

机构地区：[1]USDA-ARS Dale Bumpers National Rice Research Center, Stuttgart, AR, 72160, USA

出　　处：《分子植物育种》2007年第2期173-174,共2页Molecular Plant Breeding

摘　　要：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 pathogensUnderstanding 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）.

关 键 词：突变体 区域控制 基因 稻子 

分 类 号：S511[农业科学—作物学]