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Characterization and Proteomic Analysis of Novel Rice Lesion Mimic Mutant with Enhanced Disease Resistance

Rice science 2021年第5期28卷 466-478,I0020-I0028页

作者： Yang Yong Lin Qiujun Chen Xinyu Liang Weifang Fu yuwen Xu Zhengjin Wu yuanhua Wang Xuming Zhou Jie yu chulang Yan Chengqi Mei Qiong Chen Jianping State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products/Key Laboratory of Biotechnology far Plant Protection Ministry of Agriculture and Rural Affairs of China/Zhejiang Provincial Key Laboratory of Biotechnology far Plant ProtectionInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural ScienceHangzhou 310021China Plant Pathogen Laboratory College of Plant ProtectionShenyang Agricultural UniversityShenyang 110866China State Key Laboratory of Subtropical Silviculture Zhejiang Agriculture and Forest UniversityHangzhou 311300China College of Plant Protection Yunnan Agricultural UniversityKunming 650201China State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products/Key Laboratory of Biotechnology for Plant Protection Ministry of Agriculture and Rural Affairs of China/Zhejiang Provincial Key Laboratory of Biotechnology for Plant ProtectionInstitute of Plant VirologyNingbo UniversityNingbo 315211China institute of Biotechnology Ningbo Academy of Agricultural ScienceNingbo 315040China

Lesion mmic mutants(LMMs)are plants that spontaneously form lesions without pathogeninfection or external stimulus and exhibit resistance to ***,a rice LMM was created by ethylmethane sulfonate mutagenesis,named as hpil(hydrogen peroxide induced lesion).Diaminobenzidineand trypan blue staining showed that large amounts of H_(2)O_(2) were produced and cell death was occurredat and around the parts of lesion mimic in the rice *** phenotype of hpil is controlled by a singlerecessive gene,localized at a 2 Mb interval on chromosome *** data suggested that hpil is a novelLMM with enhanced bacterial and fungal disease resistance,and multiple pathogenesis-related proteins(PRs)were *** proteomes of leaves at three positions(different degrees of lesion mimicseverity)were characterized in hpil compared with its wild type *** expressed proteinswere detected by two dimensional difference gel electrophoresis and 274 proteins were identified byMALDITOF/*** proteins were related to metabolic process,cellular process and response tostimulus,with mostly down-regulated in hpil *** of these proteins were related to the Calvincycle,photosynthetic electron transport chain,glycolysis/gluconeogenesis and phosphonates *** resistance-related proteins including 14-3-3 proteins,OsPR10 and antioxidases such asperoxidase,superoxide dismutase and ascorbate peroxidase were up-regulated in leaves with *** results provide the foundation for cloning of the target gene and shed light on themechanism involved in autaimmunity of rice.

关键词： lesion mimic muta nt H_(2)O_(2) disease resista nee pathoge nesis・related protein resista nce・related pathway

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