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Expression patterns of defense genes in resistance of the panicles exserted from the caulis and from the tillers to neck blast in rice

文献类型: 外文期刊

作者: Hao, Zhongna 1 ; Wang, Lianping 1 ; Huang, Fudeng 2 ; Tao, Rongxiang 1 ;

作者机构: 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, Hangzhou 310021, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou 310021, Zhejiang, Peoples R China

关键词: Caulis;Defense gene;Magnaporthe oryzae;Neck in vitro;Oryza sativa;Tiller

期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:4.27; 五年影响因子:4.816 )

ISSN:

年卷期:

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收录情况: SCI

摘要: The rice variety Xiushui227 is resistant to neck blast in the panicles exserted from the caulis but susceptible in the panicles from the tillers, however, the other variety Xiushui09 is susceptible to neck blast in the panicles from the caulis but resistant in the panicles from the tillers. These two varieties were used to analyze the expression patterns of defense genes in the panicles from the caulis and the first first-class tiller at the preliminary heading stage, after inoculating the necks in vitro with Magnaporthe oryzae, respectively. All defense genes (pathogenesis-related genes PR1a, Gns1 (1,3; 1,4- β-glucanase), Cht-1 (chitinase), PR4, PR5, and PR10a, secondary metabolite pathway genes PAL (phenylalanine ammonia-lyase), CHS (chalcone synthase), and LOX (lipoxygenase), and oxidative stress-related protein genes POX22.3 (peroxidase), and PPO (polyphenol oxidase)) used in this experiment except Cht-1 and PR5 could participate in defending Xiushui227 against neck blast in the panicles from the caulis. All defense genes used in this study except Cht-1, PR10a, and PPO may play roles in defending Xiushui09 against neck blast in the panicles from the tillers.

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