| Genetic Analysis of Rice Mutants Identifies a New Locus at the Pi-ta Region Controlling Pathogen Recognition |
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| 作者姓名： | Understanding the molecular mechanisms of host and parasite interactions should facilitate the development of novel strategies to control plant diseases.…… |
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| 作者单位： | USDA-ARS Dale Bumpers National Rice Research Center, Stuttgart, AR, 72160, USA |
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| 基金项目： | This work was mainly supported by USDA-ARS National Program NP301 genomic characterization of rice germplasm and the University of Arkansas （UA） Rice Research and Promotion Board. Cooperation and support of UA Rice Research and Extension Center, Plant Pathology, UA, 0akridge Laboratory, Zhejiang University, Zhejiang Wanli University, China Scholarship Research Council, South China Agricultural University, Kansas State University and other USDA AiRS programs are greatly appreciated. |
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| 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 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）.
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| 关 键 词： | 突变体 区域控制 基因 稻子 |
Genetic Analysis of Rice Mutants Identifies a New Locus at the Pi-ta Region Controlling Pathogen Recognition |
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| Y.L. Jia.Genetic Analysis of Rice Mutants Identifies a New Locus at the Pi-ta Region Controlling Pathogen Recognition[J].Molecular Plant Breeding,2007,5(2):173-174. |
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| Authors: | YL Jia |
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| Abstract: | Understanding the molecular mechanisms of host and parasite interactions should facilitate the development of novel strategies to control plant diseases. |
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| Keywords: | Oryza sativa L Pi-ta resistance gene Rice blast Magnaporthe oryzae NBS-LRD Avirulence gene AVR-Pita |
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