期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 114, 期 46, 页码 12267-12272出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1714916114
关键词
plant virus; fungus; transmission; cross-kingdom
资金
- National Key Research and Development Program of China [2017YFD0201100]
- National Natural Science Foundation of China [31260416, 31550110222]
- 111 program for crop breeding for disease resistance and genetic improvement, Science Foundation of Shaanxi [2016KW-069]
- Japan Society for the Promotion of Science [15K07312, 16H06436, 17H01463]
- Grants-in-Aid for Scientific Research [16H06429, 15K07312] Funding Source: KAKEN
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据