ISHS Acta Horticulturae 57: I International Symposium on Tropical and Subtropical Fruits
RECENT ADVANCES IN POSTHARVEST PHYSIOLOGY OF TROPICAL AND SUBTROPICAL FRUITS |
| Author: | Jacob B. Biale |
| Abstract:
The role, biogenesis, and mode of action of ethylene in relation to the respiration climacteric are discussed. The distinction between climacteric and non-climacteric fruits was extended to several tropical species. This classification was supported by studies of the response to external ethylene. The question of ethylene as the sole triggering agent of the respiratory rise was reopened. Methionine was established as the precursor of ethylene in avocado during the rise and at the peak of the climacteric. A mechanism for ethylene action was proposed which involves the operation of an alternate electron transport pathway. The interplay of both degradative and synthetic processes in fruit ripening was stressed. | |
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