title: Cytokinin activity induced by thidiazuron.
abstract: The diphenylurea derivative thidiazuron induces a variety of cytokinin responses. Levels above 5 x 10(-9) molar and 4 x 10(-7) molar stimulate maximum soybean callus growth and radish cotyledon expansion, respectively. A wider range of dose response related effects follows thidiazuron induced tobacco plant regeneration. Analysis of soybean callus extracts strongly suggests that thidiazuron treatment creates an accumulation and/or synthesis of purine cytokinins, able to induce the growth, expansion and regeneration, mentioned above.
authors: Department of Plant Sciences, Forbes Building, University of Arizona, Tucson, Arizona 85721.
authors: J C
authors: JC
authors: Thomas
authors: F R
authors: FR
authors: Katterman