Abstract
Auxin treatment of aged pea stems (Pisum sativum L. var. Alaska) caused a decrease in monosomes (especially free monosomes) and an increase in polysomes (especially membrane-bound polysomes). These effects were not duplicated by gibberellic acid or benzyladenine. These auxin-stimulated shifts in polysome distribution commenced at least 9 hours before significant growth took place. It is suggested that this auxin-stimulated incorporation of free monosomes into membrane-bound polysomes might involve increased utilization (through activation or synthesis) of messenger RNA(s) acting as template(s) for synthesis of secretable enzyme(s) involved in growth.
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Selected References
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