The use of mycoviruses in the control of forest diseases

Muñoz-Adalia, E.J.; Fernández, M.M.; Diez, JJ. (2016) - The use of mycoviruses in the control of forest diseases - Biocontrol Science and Technology / Taylor & Francis

Fifteen families of mycoviruses have been described and 80% of
these catalogued. However, their evolutionary relationship with
fungi is not clear. The mycovirus genome can be formed by
single- or double-stranded RNA or single-stranded DNA. The
effects of mycoviruses range from the induction of a cryptic state
(asymptomatic) to promotion of hyper- or hypovirulence in the
host. Horizontal transmission of mycoviruses is determined by the
presence of different vegetative compatibility types and mating
types. Biocontrol of chestnut blight (Cryphonectria parasitica) has
been found to be a successful mycovirus-based treatment and is
considered a model in forest disease management. Development
of this type of biological control tool for use in other forest
pathologies requires a sound knowledge of viral symptomatology
and transmission. The present review focuses on the application
of mycoviruses and the prospects for future use in the biological
control of forest diseases as well as on advances in mycovirusapplied
research in forestry, landscape and culture of woody plants.

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