Cytokinin activity induced by thidiazuron |
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Authors: | Thomas J C Katterman F R |
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Affiliation: | Department of Plant Sciences, Forbes Building, University of Arizona, Tucson, Arizona 85721. |
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Abstract: | The diphenylurea derivative thidiazuron induces a variety of cytokinin responses. Levels above 5 × 10−9 molar and 4 × 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. |
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