RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Skip to content. | Skip to navigation

Home → Publications → American Chestnut Proceedings → 1982 → Effects of Selected North American and Italian Cytoplasmic Hypovirulence Agents on North American and Italian Strains of Endothia Parasitica

Effects of Selected North American and Italian Cytoplasmic Hypovirulence Agents on North American and Italian Strains of Endothia Parasitica

ABSTRACT.--Each of four North American and two Italian cytoplasmic hypovir-ulence (CH) agents were transmitted on agar into each of 22 isolates of Endothia parasitica. Half of the isolates were from North America and half from Italy. Eleven vegetative compatibility groups were represented. Three of the isolates from North America and five from Italy had previously been naturally infected with CH agents and freed of these by single conidial isolation. The others had no known history of natural infection with CH agents. Each agent caused a characteristic disease in each isolate, regardless of geographic origin or previous history.


Download this file:

PDF document Download this file — PDF document, 477Kb

Details

Author(s): John E. Elliston

Publication: American Chestnut Proceedings - 1982