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Arboriculture & Urban Forestry Online
Volume 7, Issue 9 — September 1981

Possible Role of Fungal Viruses in the Distribution and Spread of the Dutch Elm Disease Fungus    (View PDF)

P. Lawrence Pusey and Charles L. Wilson

Abstract: Double-stranded RNA, which is characteristic of fungal viruses, has been detected previously in isolates of Ceratocystis ulmi. Isolates from states with a long history of Dutch elm disease contained dsRNA, whereas isolates from states with a short history of the disease had no dsRNA. It is suggested that fungal viruses may be a factor in the distribution and spread of C. ulmi.


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