EFFECTS OF ETHYLENE ON SENESCENCE OF SOME LEAFY VEGETABLES AND THE SYNERGISTIC INFLUENCE OF LIGHT ON THE EFFECTS OF ETHYLENE

doi:10.3321/j.issn:1000-7091.1987.04.020

Abstract

Abstract: Crisphead lettuce and spinach were continuously treated with exogenous ethylene(4 ppm)supplied through an air fluid system at 20℃in lighter in darkness for five days.It was found that the ethylene treatment increased the losses of chlorophyll and soluble protein and enhanced peroxidase activity in both light and darkness,but these effects were much more remarkable in light than in darkness,especially russet spotting of crisphead lettuce.The ethylene treatment did not change the pattern of isoperoxidases,indicating that the increase in peroxidase activity enhanced by ethylene treatment may result from an increase in mobilization of the ethylene-activated peroxidases that are previously inactive,or may result from the enhanced translation of existing mRNA other than de novo synthesis of new isoperoxidases.Three extra bands in the pattern of soluble proteins in crisphead lettuce leaves treated by ethylene were found and the probable meanings were discussed.

Key words: Ehtylene, Light, Senescence of leafy vegetables

Zhang Lixin, Zong Rujing. EFFECTS OF ETHYLENE ON SENESCENCE OF SOME LEAFY VEGETABLES AND THE SYNERGISTIC INFLUENCE OF LIGHT ON THE EFFECTS OF ETHYLENE[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1987, 2(4): 121-125. doi: 10.3321/j.issn:1000-7091.1987.04.020.

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