茉莉酸甲酯处理对软枣猕猴桃生理生化变化的影响

Effect of MeJA treatments on physiological and biochemical changes for Actinidia arguta

摘要: 以软枣猕猴桃"丰绿"为试材,探讨茉莉酸甲酯处理对采后软枣猕猴桃果实生理生化变化的影响,结果表明:不同浓度茉莉酸甲酯处理,能够有效的降低软枣猕猴桃的呼吸强度,抑制果实硬度的下降和可溶性固形物的增加,延缓VC含量的下降。此外,处理还可诱导POD、CAT两种酶活性的上升,抑制PPO、LOX两种酶活性的增加,有效增强了软枣猕猴桃果实组织的抗性,在各种处理中,以0.15mmol/LMeJA处理效果最好。

Abstract: The Actinidia arguta variety “Fenglv” was used to study the effect of different MeJA treatment on the physiological and biochemical changes in the postharvest.The result showed that different concentrations of MeJA treatment could effectively delayed the respiration intensity, inhibition of the decline firmness and increase of the soluble solids, delayed the loss of titratable acid and vitamin C, it could also be induced by the rise of POD and CAT activity, inhibition of PPO and LOX activity increased, enhanced the resistance of Actinidia arguta fruit organizations.Such as 0.15mmol/L MeJA was significantly better than other treatments.