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首页> 外文期刊>African Journal of Biotechnology >Different patterns of gene expression in rice varieties undergoing a resistant or susceptible interaction with the bacterial leaf streak pathogen
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Different patterns of gene expression in rice varieties undergoing a resistant or susceptible interaction with the bacterial leaf streak pathogen

机译：水稻品种基因表达的不同模式与细菌叶片病原体抗性或易感相互作用

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The rice line carrying the nonhost gene?Rxo1, which was cloned from maize, exhibits a rapid hypersensitive response (HR) to?Xanthomonas oryzae?pv.?oryzicola(Xoc). In this study, a microarray experiment was carried out to analyze the genome-wide gene expression responses to?Xoc?at the early stage in the rice transgenic line and its wild type. 175 and 379 differentially regulated genes (DRGs) were detected in 9804-Rxo1?and 9804 at 36 h post-inoculation (hpi), respectively. The patterns of DRGs induced by?Xoc?in the transgenic rice line and its wild type were distinctly different: 92.00% of the DRGs were up-regulated in inoculated 9804-Rxo1?and 48.22% of the DRGs were sorted as defense-related genes. In contrast, 40.69% of the DRGs were up-regulated in inoculated 9804 and 40.00% were sorted as injury-induced genes. Some genes specifically up-regulated in infected 9804-Rxo1?were defense-related, including the genes encoding pathogenesis-related protein, terpene synthase family, transcription factors (TFs) AP2 domain containing protein, myb-like deoxyribonucleic acid (DNA)-binding domain containing protein, and C2H2-type zinc-finger transcription factors. Six peroxidase (POD) genes were significantly up-regulated and POD activity consistently rose in the inoculated 9804-Rxo1, whereas seven POD genes were down-regulated in its wild type, indicating that POD may also play a role in the complex process of resistant response to?Xocin the transgenic line. Instead of focusing only on the?R-gene-mediated defense, this study also discusses the susceptible response in the wild types to virulent pathogen infection in transcription level.
机译：携带非健康基因的稻米αrxO1，其从玉米克隆，表现出快速的过敏反应（HR）至αxanthomonas oryzae？pv。βoryzicola（xoc）。在这项研究中，进行了微阵列实验，以分析XOC的基因组基因表达反应？在水稻转基因系和野生型的早期阶段。在9804-RXO1中检测到175和379差异调节的基因（DRG），分别在接种后36小时内（HPI）。由αxoc诱导的DRG的模式在转基因稻米及其野生型中明显不同：92.00％的DRG在接种9804-RXO1中上调，48.22％的DRG被分类为与国防相关的基因。 。相比之下，在接种9804中，40.69％的DRG在接种9804中调节，40.00％被分类为损伤诱导的基因。在感染的9804-rxO1中特别占据的一些基因是与防御有关的，包括编码致病相关蛋白，萜烯合酶的基因，含有蛋白质，脱氧核糖核酸（DNA）的蛋白质，脱氧核糖核酸（DNA） - 绕线含有蛋白质和C2H2型锌 - 手指转录因子的结构域。六个过氧化物酶（POD）基因显着上调，荚活性在接种的9804-RXO1中始终升高，而七个POD基因在其野生型中下调，表明POD也可能在耐腐蚀过程中发挥作用反应？Xocin转基因线。该研究还概述了r-基因介导的防御，而不是专注于？r-gene介导的防御，而是讨论了野生类型中的敏感反应转录毒性病原体感染。

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