ArticleJournal of microbiology (Seoul, Korea)2020
Characterization of a novel dsRNA mycovirus of Trichoderma atroviride NFCF377 reveals a member of "Fusagraviridae" with changes in antifungal activity of the host fungus.
Article in Journal of microbiology (Seoul, Korea), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 14 citations in OpenAlex.
- Molecular characterization of a novel partitivirus harboring an additional third dsRNA segment from Trichoderma harzianum.Archives of virology · 2026Article
- Molecular characteristics of a novel alternavirus from Trichoderma harzianum.Archives of virology · 2025Article
- Mycoviruses in Entomopathogenic Fungi.Viruses · 2025Review
- Complete genome sequence of a novel endornavirus from Rhizoctonia solani AG-1 IA isolate MY-JK-1.Archives of virology · 2025Article
- Sixteen Novel Mycoviruses Containing Positive Single-Stranded RNA, Double-Stranded RNA, and Negative Single-Stranded RNA Genomes Co-Infect a Single Strain ofJournal of fungi (Basel, Switzerland) · 2023Article
- An Outstandingly Rare Occurrence of Mycoviruses in Soil Strains of the Plant-Beneficial Fungi from the GenusMicrobiology spectrum · 2023Article
- A Transfectable Fusagravirus from a Japanese Strain ofViruses · 2022Article
- Review
- Molecular characteristics of a novel hypovirus from Trichoderma harzianum.Archives of virology · 2022Article
- A New Double-Stranded RNA Mycovirus inJournal of fungi (Basel, Switzerland) · 2021Article
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3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Trichoderma atroviride is a common fungus found in various ecosystems that shows mycoparasitic ability on other fungi. A novel dsRNA virus was isolated from T. atroviride NFCF377 strain and its molecular features were analyzed. The viral genome consists of a single segmented double-stranded RNA and is 9,584 bp in length, with two discontinuous open reading frames (ORF1 and ORF2). A mycoviral structural protein and an RNA-dependent RNA polymerase (RdRp) are encoded by ORF1 and ORF2, respectively, between which is found a canonical shifty heptameric signal motif (AAAAAAC) followed by an RNA pseudoknot. Analysis of sequence similarity and phylogeny showed that it is closely related to members of the proposed family "Fusagraviridae", with a highest similarity to the Trichoderma atroviride mycovirus 1 (TaMV1). Although the sequence similarity of deduced amino acid to TaMV1 was evident, sequence deviations were distinctive at untranslated regions (UTRs) due to the extended size. Thus, we inferred this dsRNA to be a different strain of Trichoderma atroviride mycovirus 1 (TaMV1-NFCF377). Electron microscopy image exhibited an icosahedral viral particle of 40 nm diameter. Virus-cured isogenic isolates were generated and no differences in growth rate, colony morphology, or conidia production were observed between virus-infected and virus-cured strains. However, culture filtrates of TaMV1-NFCF377-infected strain showed enhanced antifungal activity against the plant pathogen Rhizoctonia solani but not to edible mushroom Pleurotus ostreatus. These results suggested that TaMV1-NFCF377 affected the metabolism of the fungal host to potentiate antifungal compounds against a plant pahogen, but this enhanced antifungal activity appeared to be species-specific.
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