Investigation and characterization of rice dwarfing epidemic caused by southern rice black-streaked dwarf virus in Jiangsu in 2023
文献类型： 外文期刊
作者： Li, Chenyang 1 ; Yang, Wenxuan 1 ; Zhang, Yuanming 2 ; Zhu, Feng 3 ; Qiu, Yanglin 2 ; Du, Linlin 1 ; Lin, Feng 1 ; Lan, Ying 1 ; Xu, Kai 2 ; Zhou, Tong 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Plant Protect, Key Lab Food Qual & Safety, Nanjing 210014, Peoples R China
2.Nanjing Normal Univ, Coll Life Sci, Jiangsu Engn & Technol Res Ctr Microbiol, Jiangsu Key Lab Microbes & Funct Genom, Nanjing 210023, Peoples R China
3.Jiangsu Stn Plant Protect & Quarantine, Nanjing 210014, Jiangsu, Peoples R China
关键词： Rice viral disease; SRBSDV; Jiangsu rice dwarfing epidemic; Virus detection; Koch's postulates
期刊名称：VIROLOGY （ 2022影响因子：3.7； 五年影响因子：3.2 ）
ISSN： 0042-6822
年卷期： 2024 年 593 卷
收录情况： SCI
摘要： During the field surveys in Jiangsu Province, China, contiguous patches of rice plants with varying degrees of dwarfing, wax-white or dark brown enations at the base of stems, and abnormal heading symptoms were observed in the fields located in Jiangning District in Nanjing City, Jurong County in Zhenjiang City, and Zhangjiagang County in Suzhou City. Through molecular analyses, the presence of southern rice black-streaked dwarf virus was confirmed in symptomatic rice plants. The infections of other rice viruses that cause dwarfing were also ruled out. Additionally, Koch's postulates were fulfilled, further validating SRBSDV as the causal agent for the observed dwarfing disease epidemic. Furthermore, the phylogenetic analyses revealed that the SRBSDV prevalent in Jiangsu in 2023 may originate from multiple regions in Vietnam. Our study has documented the emergence of an SRBSDV epidemic in Jiangsu in 2023, marking the first incidence of southern rice blackstreaked dwarf disease in this region.
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