ArticleArchives of virology2026
Effect of two double-stranded RNA viruses on the virulence of the phytopathogenic fungus Fusarium oxysporum.
Article in Archives of virology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
11 authors.
Funding
Abstract
Fusarium root rot, a persistent soil-borne disease, poses a serious threat to crop production, quality, and ultimately to food security. We identified two double-stranded RNA viruses co-infecting the phytopathogenic fungus Fusarium oxysporum strain 3 S-18: Fusarium oxysporum partitivirus 1 isolate 3 S-18 (FoPV1/3S18) and Fusarium oxysporum virus 1 (FoV1). The genome of FoPV1/3S18 consists of two segments. dsRNA1 is 1,761 nt in length with a large open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp) of 539 amino acids (aa). dsRNA2 is 1,556 nt in length with an ORF encoding a putative coat protein (CP) of 430 aa. Phylogenetic analysis based on both RdRp and CP amino sequences indicated that FoPV1/3S18 clusters with the members of the genus Gammapartitivirus within the family Partitiviridae. FoV1 was identified as a new monopartite dsRNA virus with 2,944 nt, containing two ORFs which encode a protein of 590 aa RdRp and 134 aa nucleocapsid protein, respectively. It belongs to the genus Unirnavirus, family Amalgaviridae. Furthermore, we demonstrated that both FoPV1/3S18 and FoV1 can be successfully transmitted via hyphal anastomosis to a virus-free strain. Co-infection with FoV1 and FoPV1/3S18 reduced conidial production but did not attenuate fungal virulence. However, infection with FoV1 alone not only reduced conidial production but also induced hypovirulence.
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