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Polyamines and their cellular anti-senescence properties in honey dew muskmelon fruit
1Kika de la Garza Subtropical Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, 2413 E. Bus. Hwy. 83, 78596, Weslaco, TX, USA
Plant Science : an International Journal of Experimental Plant Biology
|February 13, 2001
Abstract:
Activated oxygen free radicals cause peroxidative damage to all membranes and hasten senescence. Polyamines (PAs) are effective scavengers of these free radicals produced by lipoxygenase (LOX) and phospholipase-D (PL-D). Five days prior to abscission (harvest), 'Honey Brew' (Cucumis melo L. (Inodorus group)) fruit have a change in the ratio of endogenous spermidine (SPD) to putrescine (PUT), from SPD>PUT to SPD