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. 1988 Nov;88(3):833–837. doi: 10.1104/pp.88.3.833

Inhibition of Ethylene Biosynthesis by Salicylic Acid

Charles A Leslie 1,1, Roger J Romani 1
PMCID: PMC1055670  PMID: 16666393

Abstract

Salicylic acid inhibited ethylene formation from ACC in self-buffered (pH 3.8) pear (Pyrus communis) cell suspension cultures with a K1app of about 10 micromolar after 1 to 3 hours incubation. Inhibition appeared noncompetitive. Among 22 related phenolic compounds tested, only acetylsalicylic acid showed similar levels of inhibition. Inhibition by salicylic acid was inversely dependent on the pH of the culture medium and did not require a continuous external supply of salicylate. When compared to known inhibitors of the ethylene forming enzyme, cobalt, n-propyl gallate, and dinitrophenol, inhibition by salicylic acid most closely resembled that by dinitrophenol but salicylic acid did not produce the same degree of respiratory stimulation. Results are discussed in terms of other known effects of salicylic acid on plants, pH-dependency, and the possible influence of salicylic acid on electron transport.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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