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Plant Physiology 70:1039-1043 (1982)
© 1982 American Society of Plant Biologists

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Senescence in Isolated Carnation Petals 1

Effects of Indoleacetic Acid and Inhibitors of Protein Synthesis

George Wulster, John Sacalis and Harry W. Janes

Department of Horticulture and Forestry, Cook College, Rutgers University, New Brunswick, New Jersey 08903

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.

1 This work, a paper of the journal series, performed as part of New Jersey Agricultural Experiment Station project No. 12143, supported by New Jersey Agricultural Experiment Station; Hatch Act Funds, Department of Horticulture and Forestry, Cook College, Rutgers—The State University, New Brunswick, NJ 08903.




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Y. Xu and M. R. Hanson
Programmed Cell Death during Pollination-Induced Petal Senescence in Petunia
Plant Physiology, April 1, 2000; 122(4): 1323 - 1334.
[Abstract] [Full Text]


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