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Review
. 2024 Feb 5;16(2):253.
doi: 10.3390/v16020253.

The Interaction between Hypovirulence-Associated Chrysoviruses and Their Host Fusarium Species

Chengwu Zou  1 , Xueying Cao  1 , Qiujuan Zhou  1 , Ziting Yao  1   2
Affiliations
Review

The Interaction between Hypovirulence-Associated Chrysoviruses and Their Host Fusarium Species

Chengwu Zou et al. Viruses. .

Abstract

Chrysoviruses are isometric virus particles (35-50 nm in diameter) with a genome composed of double-stranded RNAs (dsRNA). These viruses belonged to the Chrysoviridae family, named after the first member isolated from Penicillium chrysogenum. Phylogenetic classification has divided the chrysoviruses into Alphachrysovirus and Betachrysovirus genera. Currently, these chrysoviruses have been found to infect many fungi, including Fusarium species, and cause changes in the phenotype and decline in the pathogenicity of the host. Thus, it is a microbial resource with great biocontrol potential against Fusarium species, causing destructive plant diseases and substantial economic losses. This review provides a comprehensive overview of three chrysovirus isolates (Fusarium graminearum virus 2 (FgV2), Fusarium graminearum virus-ch9 (FgV-ch9), and Fusarium oxysporum f. sp. dianthi mycovirus 1 (FodV1)) reported to decline the pathogenicity of Fusarium hosts. It also summarizes the recent studies on host response regulation, host RNA interference, and chrysovirus transmission. The information provided in the review will be a reference for analyzing the interaction of Fusarium species with chrysovirus and proposing opportunities for research on the biocontrol of Fusarium diseases. Finally, we present reasons for conducting further studies on exploring the interaction between chrysoviruses and Fusarium and improving the accumulation and transmission efficiency of these chrysoviruses.

Keywords: Fusarium; RNA interference; chrysovirus; mycovirus–host interactions; transmission; viral infection.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Strategy diagram for fungal disease prevention and control using Fusarium chrysoviruses.
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