Abstract
Bean leaves from Phaseolus vulgaris L. var. Pinto 111 react to mechanical wounding with the formation of ethylene. The substrate for wound ethylene is 1-aminocyclopropane-1-carboxylic acid (ACC). It is not set free by decompartmentation but is newly synthesized. ACC synthesis starts 8 to 10 min after wounding at 28°C, and 15 to 20 min after wounding at 20°C. Aminoethoxyvinylglycine (AVG), a potent inhibitor of ethylene formation from methionine via ACC, inhibits wound ethylene synthesis by about 95% when applied directly after wounding (incubations at 20°C). AVG also inhibits the accumulation of ACC in wounded tissue. AVG does not inhibit conversion of ACC to ethylene. Wound ethylene production is also inhibited by cycloheximide, n-propyl gallate, and ethylenediaminetetraacetic acid.
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Abbreviations
- ACC:
-
1-aminocyclopropane-1-carboxylic acid
- AVG:
-
ammoethoxyvinylglycine
- EDTA:
-
ethylenediaminetetraacetic acid
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Konze, J.R., Kwiatkowski, G.M.K. Rapidly induced ethylene formation after wounding is controlled by the regulation of 1-aminocyclopropane-1-carboxylic acid synthesis. Planta 151, 327–330 (1981). https://doi.org/10.1007/BF00393286
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DOI: https://doi.org/10.1007/BF00393286