Effect of antioxidant enzyme activity and phenylpropanoid metabolism to jasmonic acid methyl ester(MeJA)of and ethephon treatments for fresh-cut apple
In order to determine the effect of two exogenous signal molecules-jasmonic acid methyl ester(MeJA) and ethephon onantioxidant enzyme activity and phenylpropanoid metabolism for fresh-cut fruit and vegetables,fresh-cut apple was taken as material,and treated with exogenous ethephon and MeJA,stored at 10 ℃.Antioxidant system enzymes PPO,POD,APX and phenylpropanes metabolic system enzymes PAL were analyzed.The results indicated that MeJA and ethylenecould effectively improved fresh-cut Fuji apple PPO and POD activity,and slowed down the decline rate of APX activity.The effects of exogenous ethylene and MeJA on PPO、POD and APX were similar.MeJA and ethephon could effectively improve PAL activity,and the effect of ethylene was more obvious.The two signal molecules could improve the ability of antioxidant system and phenylpropanes metabolic system,and started defense reaction of fresh-cut apple and increased fruit resistance.
国家科技期刊平台
NSTL
万方数据
维普
