Temperature Sensitive Mutants of the Tobacco Mosaic Virus. I. In Vivo Behavior (Temperatursensitive Mutanten des Tabakmosaikvirus. I. In Vivo- Verhalten)
Abstract
Twenty-one mutants of TMV isolated by other investigators, five specially selected mutants, and four wild strains (Table 2) were investigated with respect to their temperature behavior in the host cell. Of the 21 mutants, 14 were temperature sensitive (ts) in the sense that in tobacco leaves at 32C, they produced only a fraction of the stable infective material produced at 23C. Seven of these mutants and all 4 wild strains were temperature resistant (tr), that is, they produced comparable amounts of infective material at both temperatures. The pattern of tr and ts behavior is similar, but not identical, on three other host plants. The 14 unselected ts mutants all showed spreading symptoms at 32C (ts-I mutants). Eleven of them produced yellow symptoms on tobacco at 23C as well as at 32C (Table 3).
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1968
- Accession Number
- AD0845942
Entities
People
- H. Jockusch
Organizations
- United States Army Biological Warfare Laboratories