Photo-regulation of the ratio of ester to free indole-3-acetic acid |
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| Authors: | Robert S Bandurski Aga Schulze Jerry D Cohen |
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| Institution: | Department of Botany and Plant Pathology Michigan State University East Lansing, Michigan 48824 USA |
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| Abstract: | A light exposure, sufficient to cause a 30% reduction in growth rate of seedlings of Zea mays, causes a decrease of 40% in the concentration of free indole-3-acetic acid in the seedling and an increase in the content of esterified indole-3-acetic acid. We conclude that one mechanism for regulation of plant growth is alteration of the ratio of free to conjugated hormone by environmental stimuli. |
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