Abstract

Rice (Oryza sativa L.) is a staple food crop, feeding more than 50% of the world’s population. Diseases caused by bacterial, fungal, and viral pathogens constantly threaten the rice production and lead to enormous yield losses. Bacterial blight (BB) and bacterial leaf streak (BLS), caused respectively by gram-negative bacteria Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas oryzae pv. oryzicola (Xoc), are two important diseases affecting rice production worldwide. Due to the economic importance, extensive genetic and genomic studies have been conducted to elucidate the molecular mechanism of rice response to Xoo and Xoc in the last two decades. A series of resistance (R) genes and their cognate avirulence and virulence effector genes have been characterized. Here, we summarize the recent advances in studies on interactions between rice and the two pathogens through these R genes or their products and effectors. Breeding strategies to develop varieties with durable and broad-spectrum resistance to Xanthomonas oryzae based on the published studies are also discussed.

中文翻译：

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水稻（Oryza sativa L.）抗病基因及其与细菌性枯萎病/叶条纹病原菌（Xanthomonas oryzae）的相互作用

摘要

稻米（Oryza sativa L.）是一种主要粮食作物，为世界上50％以上的人口提供食物。由细菌，真菌和病毒病原体引起的疾病不断威胁稻米生产并导致巨大的产量损失。革兰氏阴性细菌米氏黄单胞菌（Xanthomonas oryzae pv ）分别引起的细菌疫病（BB）和细菌叶斑病（BLS）。米（Xoo）和黄单胞菌pv。空心稗（XOC），是影响全球水稻生产的两个重要疾病。由于经济上的重要性，已进行了广泛的遗传和基因组研究，以阐明水稻对Xoo和Xho反应的分子机制。Xoc在过去的二十年中。已鉴定了一系列抗性（R）基因及其同源无毒力和毒力效应子基因。在这里，我们总结了水稻和两种病原体之间通过这些R基因或其产物和效应子相互作用的研究的最新进展。还讨论了基于已发表的研究开发对水稻黄单胞菌具有持久性和广谱抗性的品种的育种策略。