Abstract Bacterial blight (BB) is one of the most destructive diseases of rice, caused by the bacterial pathogen Xanthomonas oryzae pv. oryzae (Xoo). Several BB resistant genes have been deployed in rice cultivars. One such gene is Xa38, which exhibits resistance against several Indian Xoo races. Since the detailed characterization of Xa38 is still awaited, we have used Virus Induced Gene Silencing, using the rice-specific pRTBV-MVIGS system, to silence Xa38 and study its effect on the symptom development of BB. We find that Xa38 silencing compromises the resistance towards Xoo. Silencing results in increased BB symptoms and enhanced Xoo accumulation.

中文翻译：

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病毒诱导的 Xa38 基因沉默损害了水稻对白叶枯病的抗性

摘要 细菌性枯萎病（BB）是水稻中最具破坏性的病害之一，由细菌病原体米黄单胞菌引起。米（Xoo）。几个 BB 抗性基因已部署在水稻品种中。其中一种基因是 Xa38，它对几种印度 Xoo 种族表现出抗性。由于仍在等待 Xa38 的详细表征，我们使用病毒诱导的基因沉默，使用水稻特异性 pRTBV-MVIGS 系统，使 Xa38 沉默并研究其对 BB 症状发展的影响。我们发现 Xa38 沉默会降低对 Xoo 的抵抗力。沉默导致 BB 症状增加和 Xoo 积累增加。