文献类型： 外文期刊

作者： Andika, Ida Bagus ¹ ; Wei, Shuang ¹ ; Cao, Chunmei ⁴ ; Salaipeth, Lakha ¹ ; Kondo, Hideki ³ ; Sun, Liying ¹ ;

作者机构： 1.Northwest A&F Univ, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Peoples R China

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

3.Okayama Univ, Inst Plant Sci & Resources, Kurashiki, Okayama 7100046, Japan

4.Inner Mongolia Acad Agr & Anim Husb Sci, Potato Res Ctr, Hohhot, Peoples R China

5.King Mongkuts Univ Technol Thonburi, Sch Bioresources & Technol, Bangkok, Thailand

关键词： plant virus;fungus;transmission;cross-kingdom

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：11.205； 五年影响因子：12.291 ）

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收录情况： SCI

摘要： The transmission of viral infections between plant and fungal hosts has been suspected to occur, based on phylogenetic and other findings, but has not been directly observed in nature. Here, we report the discovery of a natural infection of the phytopathogenic fungus Rhizoctonia solani by a plant virus, cucumber mosaic virus (CMV). The CMV-infected R. solani strain was obtained from a potato plant growing in Inner Mongolia Province of China, and CMV infection was stable when this fungal strain was cultured in the laboratory. CMV was horizontally transmitted through hyphal anastomosis but not vertically through basidiospores. By inoculation via protoplast transfection with virions, a reference isolate of CMV replicated in R. solani and another phytopathogenic fungus, suggesting that some fungi can serve as alternative hosts to CMV. Importantly, in fungal inoculation experiments under laboratory conditions, R. solani could acquire CMV from an infected plant, as well as transmit the virus to an uninfected plant. This study presents evidence of the transfer of a virus between plant and fungus, and it further expands our understanding of plant-fungus interactions and the spread of plant viruses.