Abstract
Indoleacetic acid induces senescence in isolated carnation (Dianthus caryophyllus, cv. White Sim) petals, increasing the duration and amount of ethylene production. This effect is inhibited by Actinomycin D, an inhibitor of RNA synthesis, and cycloheximide, a translational inhibitor of protein synthesis. The ability of petals to respond to indoleacetic acid appears to be a function of physiological age. Indoleacetic acid is capable of enhancing ethylene evolution and senescence only in specific portions of the petal.
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Selected References
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