水杨酸对黄花梨采后衰老和膜脂过氧化的影响  

EFFECTS OF SALICYLIC ACID ON POSTHARVEST SENESCENCE AND MEMBRANE LIPID PEROX IDATION OF PEAR FRUIT (PYRUS PYRIFOLIAVAR. HUANGHUA)

作　　者：王大平[1] 刘奕清[1] 朱钧[2] 朱建勇[3] 

机构地区：[1]重庆文理学院生命科学系,重庆永川402168 [2]西南大学园艺园林学院,重庆400716 [3]重庆文理学院继续教育学院,重庆永川402168

出　　处：《西南农业大学学报（自然科学版）》2005年第5期621-623,633,共4页Journal of Southwest Agricultural University

基　　金：渝西学院重点科研资助项目(Z2003SK04)

摘　　要：黄花梨果实采后用浓度为0.1 g/L,0.3 g/L的水杨酸(SA)溶液浸泡20 m in后,在(25±1)℃的贮藏条件下,研究了水杨酸处理对黄花梨果实采后衰老和膜脂过氧化的影响。结果表明,与以清水为对照相比,0.1 g/L SA处理能抑制SOD,CAT,POD活性的下降,降低果肉组织的相对电导率和MDA积累量,从而延缓了果实的成熟衰老;而0.3 g/L SA处理无明显影响。Harvested fruit of pear （ Pyrus pyrifolia var. Huanghua ） was immersed in 0. 1 g/L and 0.3 g/L salicylic acid （ SA ） solutions for 20 minutes prior to storage at 25 ± 1℃. As compared with the control （ immersion in water） , 0. 1 g/L SA treatment inhibited the decline in SOD, CAT and POD activities of the stored fruit and decreased the its relative conductivity and MDA accumulation, thus delaying the postharvest ripening and senescence. Applied at 0.3 g/L, SA had no significant influence on the senescence and membrane lipid peroxidation of the fruit.

关 键 词：黄花梨果实 水杨酸 衰老 膜脂过氧化 

分 类 号：S661.201[农业科学—果树学]