Hormonal regulation of genetic tumor induction: Cytokinin and abscisic acid |
| |
| Authors: | Ames Ira H; Hill Carol A; Walton Daniel C; Dashek William V |
| |
| Institution: | Laboratory of Experimental Oncology, Department of Anatomy, State University of New York, Upstate Medical Center and Department of Environmental and Forest Biology, State University of New York, College of Environmental Science and Forestry Syracuse, New York 13210, U.S.A. |
| |
| Abstract: | Young seedlings of the tumor-prone amphiploid Nicotiana suaveolens? N. langsdorjfii were grown aseptically on nutrient mediumin a controlled environment chamber. At regular intervals theincidence of tumor formation was scored and plants were harvested.Total cytokinin activity was determined by means of the cucumbercotyledon bioassay, while ABA activity was measured by radioimmunoassay.A close correlation between onset of tumor formation and elevationin endogenous cytokinin activity was demonstrated, but no correlationwas observed between onset of tumorigenesis and change in thelevel of ABA. In addition, exposure of plants to exogenous ABAdid not alter therate of tumor formation. These results arediscussed in relation to the trigger mechanism for tumor inductionin the Nicotiana system.
1A preliminary report of some of this work was presented atthe American Society of Plant Physiologists meeting in June1978.
3Present address: Department of Biology, West Virginia University,Morgantown, West Virginia 26506, U.S.A. (Received March 10, 1979; ) |
| |
| Keywords: | |
| 本文献已被 Oxford 等数据库收录！ |
|
