Mycoviruses are common among different species of endophytic fungi of grasses

8 páginas, 1 tabla, 1 figuraA survey of mycoviruses was made in a collection of 103 isolates belonging to 53 different species of endophytic fungi of grasses. DsRNA elements were detected in isolates of 12 of the species analyzed. The banding characteristics and sizes of some of the dsRNA elements suggest that they might belong to previously described mycovirus families. The observed incidence (22.6%) indicates that the presence of mycoviruses could be common among species of this group of ubiquitous fungi.This research was financed by project AGL2005-02839 granted by the Spanish Ministry of Science and Education. We thank Drs. Robert Coutts and Beatríz R. Vázquez de Aldana for reviewing the manuscript.Peer reviewe