Effect of salicylic acid treatment on alleviating postharvest chilling injury of 'Qingnai' plum fruit
Effect of salicylic acid treatment on alleviating postharvest chilling injury of 'Qingnai' plum fruit
复制标题
水杨酸处理减轻‘青乃’李果采后冷害的效果
DOI：
10.1016/j.postharvbio.2011.05.012
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发表时间：
2011-11-01
影响因子：
7
通讯作者：
Xie, Jing
中科院分区：
文献类型：
--
作者：
Luo, Zisheng;Chen, Chun;Xie, Jing
研究了水杨酸（SA）处理对青乃李果实冷害、发病率、电解质渗漏、丙二醛（MDA）含量、呼吸强度、乙烯释放量、多酚氧化酶（PPO）和过氧化物酶（POD）活性以及多胺（PA）含量的影响。对照果实冷藏15-30 d后冷害、发病率、电解质渗漏率、MDA含量、呼吸强度和乙烯释放量均增加。冷害促进了PPO和POD活性的升高，并与果肉布朗宁有关。对照果实的冷害与腐胺和精胺含量呈显著正相关，并伴随着多胺含量的增加。SA抑制冷害与降低渗漏、降低MDA含量、延缓PPO和POD活性、促进PA积累有关。SA处理推迟了呼吸跃变高峰的出现，也抑制了呼吸和乙烯的产生。结果表明，SA处理可用于防治青耐冷害。李果实冷藏期间。(C)2011 Elsevier B. V.保留所有权利。
The effects of salicylic acid (SA) treatment on chilling injury, disease incidence, electrolyte leakage, malondialdehyde (MDA) content, respiration rate and ethylene production, polyphenol oxidase (PPO) and peroxidase (POD) activities, and polyamine (PA) content of 'Qingnai' plum fruit were examined. Chilling injury, disease incidence, electrolyte leakage, MDA content, respiration and ethylene production of control fruit increased after about 15-30 days cold storage. Chilling injury promoted PPO and POD activities which were associated with fruit flesh browning. Accompanied by a polyamine content increase, chilling injury was positively correlated with putrescine and spermine contents in control fruit. Suppression of chilling injury by SA was associated with reducing leakage, MDA content, delayed activities of PPO and POD, and enhanced PA accumulation. SA treatment delayed the onset of the climacteric peak of respiration, and also inhibited respiration and ethylene production. The results suggest that SA treatment may be used commercially to control chilling injury in 'Qingnai'. plum fruit during cold storage. (C) 2011 Elsevier B.V. All rights reserved.