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Systemic acquired resistance plays a major role in bacterial blight resistance in a progeny of somatic hybrids of cultivated rice (Oryza sativa L.) and wild rice (Oryza meyeriana L.)

文献类型： 外文期刊

作者： Xu, Rumeng 1 ; Zhou, Jie 2 ; Zheng, Ersong 2 ; Yang, Yong 2 ; Li, Dongyue 2 ; Chen, Yang 2 ; Yan, Chengqi 4 ; Chen, Jianp 1 ;

作者机构： 1.Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321000, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, MOA Key Lab Plant Protect & Biotechnol, Zhejiang Prov Key Lab Plant Virol, Hangzhou 310021, Peoples R China

3.Northwest A&F Univ, Coll Plant Protect, Yangling 712100, Shaanxi, Peoples R China

4.Ningbo Acad Agr Sci, Inst Biotechnol, Ningbo 315101, Peoples R China

5.Ningbo Univ, Inst Plant Virol, Ningbo, Peoples R China

关键词： Transcriptome analysis; Bacterial blight resistance; PXO341; SAR

期刊名称：JOURNAL OF PLANT DISEASES AND PROTECTION （ 影响因子：1.526； 五年影响因子：1.211 ）

ISSN： 1861-3829

年卷期：

页码：

收录情况： SCI

摘要： As the number of people in the world increases, people's demand for food becomes greater. In order to reduce reliance on pesticides that maintain crop yields, plant disease resistance is gaining increasing attention. As a near-isogenic line with high resistance to bacterial blight, transcriptional regulation of Y73 on disease resistance has aroused our great interest. To comprehend how Y73 plants defend themselves against bacterial blight caused by Xanthomonas oryzae pv. oryzae (Xoo) and how their disease resistance is executed at the transcriptional level, a time series transcriptional profiles of the local leaves and systemic leaves of Y73 and its recurrent parent Dalixiang (DLX) were obtained after inoculation with Xoo strain PXO341. Transcriptome data showed that the differences between incompatible (Y73 to Xoo) and compatible (DLX to Xoo) interactions were greater in the systemic leaves than in the inoculated ones. In contrast to compatible interactions, incompatible interactions were able to generate a sustained systemic acquired resistance (SAR) response, groups of genes like PR3 (chitinase 5) and PR1 had been up-regulated in systemic leaves. These results provide evidence that a robust and sustained SAR response in Y73 plays an important role in its broad-spectrum and high resistance to bacterial blight.

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