Pathogenesis-related proteins in somatic hybrid rice induced by bacterial blight
文献类型: 外文期刊
第一作者: Yu, Chu L.
作者: Yu, Chu L.;Wang, Chang C.;Hu, Hai T.;Yang, Ling;Yan, Shun P.;Sun, Wei N.;Yan, Cheng Q.;Chen, Jian P.
作者机构:
关键词: somatic hybrid rice;leaf blades;bacterial blight;proteomics
期刊名称:PHYTOCHEMISTRY ( 影响因子:4.072; 五年影响因子:4.132 )
ISSN: 0031-9422
年卷期: 2008 年 69 卷 10 期
页码:
收录情况: SCI
摘要: Rice bacterial blight, caused by Xanthomonas oryzae pv. Oryzae (Xoo), is one of the most serious rice diseases worldwide. The bacterial blight resistance trait from Oryza meyeriana, a wild rice species, was introduced into an elite japonica rice cultivar using asymmetric somatic hybridization. This study was carried out with the intention of understanding the molecular mechanism of incompatible interaction between Xoo and the stable somatic hybrids by using proteomic analyses. Proteins were extracted from leaves at 24, 48, and 72 h after Xoo inoculation and separated by 2-DE. A total of 77 protein spots changed their intensities significantly (p < 0.05) by more than 1.5-fold at least at one time point. Sixty-four protein spots were successfully identified by MS analysis. Among them, 51 were known to be involved in photosynthesis. Up-regulation of Rubisco large subunit (RcbL) small fragments and down-regulation of RcbL big fragments indicated that intact RcbL and RcbL big fragments degraded following Xoo attack, which was further confirmed by Western blot analysis. The differential expression of proteins related to signal transduction, antioxidant defense, photosynthesis, metabolism, and protein turnover during the Xoo infection, suggests the existence of a complex regulatory network in the somatic hybrid rice that increases resistance toward Xoo infection and damage. (C) 2008 Elsevier Ltd. All rights reserved.
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