50-plus years of fungal viruses

Said A. Ghabrial, José R. Castón, Daohong Jiang, Max L. Nibert, Nobuhiro Suzuki

    Research output: Contribution to journalReview articlepeer-review

    293 Citations (Scopus)

    Abstract

    Mycoviruses are widespread in all major taxa of fungi. They are transmitted intracellularly during cell division, sporogenesis, and/or cell-to-cell fusion (hyphal anastomosis), and thus their life cycles generally lack an extracellular phase. Their natural host ranges are limited to individuals within the same or closely related vegetative compatibility groups, although recent advances have established expanded experimental host ranges for some mycoviruses. Most known mycoviruses have dsRNA genomes packaged in isometric particles, but an increasing number of positive- or negative-strand ssRNA and ssDNA viruses have been isolated and characterized. Although many mycoviruses do not have marked effects on their hosts, those that reduce the virulence of their phytopathogenic fungal hosts are of considerable interest for development of novel biocontrol strategies. Mycoviruses that infect endophytic fungi and those that encode killer toxins are also of special interest. Structural analyses of mycoviruses have promoted better understanding of virus assembly, function, and evolution.

    Original languageEnglish
    Pages (from-to)356-368
    Number of pages13
    JournalVirology
    Volume479-480
    DOIs
    Publication statusPublished - May 1 2015

    Keywords

    • Biological control
    • Capsid structure
    • Chrysoviridae
    • DsRNA viruses
    • Hypovirulence
    • Mycoviruses
    • Partitiviridae
    • Totiviridae

    ASJC Scopus subject areas

    • Virology

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