过氧化氢诱导采后香蕉耐冷性的研究  

Hydrogen Peroxide Induced Chilling-Resistance of Postharvest Banana Fruit

作　　者：潘少丽[1] 黄椿颖[1] 王海波[1] 庞学群[2] 黄雪梅[1] 张昭其[1] 

机构地区：[1]华南农业大学广东省果蔬保鲜重点实验室,广东广州510642 [2]华南农业大学生命科学学院,广东广州510642

出　　处：《华南农业大学学报》2007年第4期34-37,共4页Journal of South China Agricultural University

基　　金：国家自然科学基金(30471219);广东省自然科学基金团队项目(06200670)

摘　　要：为了探讨过氧化氢(H2O2)诱导香蕉耐冷性的作用,本试验研究了外源H2O2、茉莉酸甲酯(MJ)和水杨酸(SA)处理对采后香蕉果实冷害的影响.结果表明:SA、MJ和H2O2处理在不同程度上减轻了香蕉果实的冷害症状,延缓了果实硬度和PPO活性的提高,维持了果皮颜色,延缓了细胞膜透性的提高和抑制了冷害诱导的呼吸强度的提高,推测H2O2可作为信号分子诱导采后香蕉果实的耐冷能力.In order to understand the role of hydrogen peroxide on the chilling resistence of banana fruits,the effects of hydrogen peroxide,salicylic acid（SA） and methyl jasmonate（MJ） on chilling injury of postharvest banana fruits were investigated.The results indicated that hydrogen peroxide,salicylic acid and methyl jasmonate treatments alleviated the chilling injury symptoms on harvested banana fruits to a different extent.All the treatments could retard change of the fruit color and increase of fruit hardness,PPO activity,relative electrical conductivity and respiration rate.This study suggested that hydrogen peroxide could be used as a signaling molecule,which induced the chilling resistance of postharvest banana fruits.

关 键 词：香蕉果实 过氧化氢 水杨酸 茉莉酸甲酯 冷害 

分 类 号：S667.2[农业科学—果树学]