水稻条纹花叶病毒劫持水稻头部相关基因,促进其昆虫载体越冬。

IF 9.3 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Journal of Integrative Plant Biology Pub Date : 2024-06-24 DOI:10.1111/jipb.13722
Siping Chen, Xinyi Zhong, Zhiyi Wang, Biao Chen, Xiuqin Huang, Sipei Xu, Xin Yang, Guohui Zhou, Tong Zhang
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引用次数: 0

摘要

水稻条纹花叶病毒(RSMV)是一种新出现的病原体,它使中国南方地区的水稻大幅减产。它由叶蝉 Recilia dorsalis 传播,后者在稻田中越冬。我们的田间调查发现,RSMV 感染会导致水稻延迟抽穗,导致冬季稻田中残留大量绿色病株。这为叶蝉和病毒的越冬创造了有利环境,有可能导致病害的快速传播和流行。接下来,我们探索了 RSMV 操纵水稻植株发育过程的机制。研究发现,一种与水稻标题相关的 E3 泛素连接酶--标题日期相关因子 1(HAF1)被 RSMV 编码的 P6 劫持。HAF1 的功能受损会影响下游蛋白 HEADING DATE 1 和 EARLY FLOWERING3 的泛素化和降解,从而导致水稻抽穗延迟。我们的研究结果为了解病毒与植物之间基于发育调控的分子相互作用提供了新的视角,并强调了了解病毒-病媒-植物三方相互作用对有效的病害管理策略的重要性。
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Rice stripe mosaic virus hijacks rice heading-related gene to promote the overwintering of its insect vector

Rice stripe mosaic virus (RSMV) is an emerging pathogen which significantly reduces rice yields in the southern region of China. It is transmitted by the leafhopper Recilia dorsalis, which overwinters in rice fields. Our field investigations revealed that RSMV infection causes delayed rice heading, resulting in a large number of green diseased plants remaining in winter rice fields. This creates a favorable environment for leafhoppers and viruses to overwinter, potentially contributing to the rapid spread and epidemic of the disease. Next, we explored the mechanism by which RSMV manipulates the developmental processes of the rice plant. A rice heading-related E3 ubiquitin ligase, Heading date Associated Factor 1 (HAF1), was found to be hijacked by the RSMV-encoded P6. The impairment of HAF1 function affects the ubiquitination and degradation of downstream proteins, HEADING DATE 1 and EARLY FLOWERING3, leading to a delay in rice heading. Our results provide new insights into the development regulation-based molecular interactions between virus and plant, and highlights the importance of understanding virus-vector-plant tripartite interactions for effective disease management strategies.

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来源期刊
Journal of Integrative Plant Biology
Journal of Integrative Plant Biology 生物-生化与分子生物学
CiteScore
18.00
自引率
5.30%
发文量
220
审稿时长
3 months
期刊介绍: Journal of Integrative Plant Biology is a leading academic journal reporting on the latest discoveries in plant biology.Enjoy the latest news and developments in the field, understand new and improved methods and research tools, and explore basic biological questions through reproducible experimental design, using genetic, biochemical, cell and molecular biological methods, and statistical analyses.
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