VIEW ARTICLE

Physiology and Biochemistry

Translocated Heat Therapy of Bean Rust. C. E. Yarwood, Professor Emeritus, Department of Plant Pathology, University of California, Berkeley, CA 94720; Phytopathology 68:1170-1171. Accepted for publication 1 March 1978. Copyright © 1978 The American Phytopathological Society, 3340 Pilot Knob Road, St. Paul, MN 55121. All rights reserved.. DOI: 10.1094/Phyto-68-1170.

When the distal halves of bean leaves were heated for 10 sec in water at 75 C 10 hr after inoculation with Uromyces phaseoli, the heated tissue was killed, and most of the U. phaseoli in the proximal halves of the same leaves was killed without permanent injury to the proximal leaf tissue. The amount of surviving fungus in the nonheated tissue was further reduced if the entire leaf was dipped in water at 45 C or in ice water for 10 sec immediately after heat treatment.