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园艺学报 ›› 2010, Vol. 37 ›› Issue (4): 547-552.

• 果树 • 上一篇    下一篇

1–甲基环丙烯对甜柿贮藏中冷害的控制作用

张 宇,饶景萍*,孙允静,李珊珊   

  1. (西北农林科技大学园艺学院,陕西杨凌 712100)
  • 收稿日期:2009-11-03 修回日期:2010-03-16 出版日期:2010-04-25 发布日期:2010-04-25
  • 通讯作者: 饶景萍

Reduction of Chilling Injury in Sweet Persimmon Fruit by 1-MCP

ZHANG Yu,RAO Jing-ping*,SUN Yun-jing,and LI Shan-shan   

  1. (College of Horticulture,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100, China)
  • Received:2009-11-03 Revised:2010-03-16 Online:2010-04-25 Published:2010-04-25
  • Contact: RAO Jing-ping

摘要: 研究了0.25、0.50、1.00 μL · L-1 浓度的1–甲基环丙烯(1-MCP)对4 ℃冷藏条件下‘阳丰’甜柿果实成熟生理和冷害发生的影响。结果表明:1-MCP处理推迟了冷害症状的出现,降低了果实细胞膜透性和丙二醛(MDA)含量;延缓了乙烯释放高峰出现的时间并降低了峰值;对呼吸速率没有明显影响;提高了超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性;对多酚氧化酶(PPO)和过氧化物酶(POD)活性变化有一定的抑制作用。1.00 μL · L-1 1-MCP对冷害的控制作用比其他两个浓度更显著。

关键词: 甜柿, 1-MCP, 酶活性, 冷害, 贮藏

Abstract: Youhou sweet persimmon were chosen to investigate the effect of three consistencies of 1-MCP(0.25, 0.50, 1.00 μL · L-1)on postharwest physiology and chilling injury at 4 ℃. The results indicated that 1-MCP treatment efficiently retarded the development of the main chilling injury symptom of sweet persimmon fruit, reduced membrane permeability and MDA content, inhibited ethylene release, but had no effect on respiration rate of the fruits. Further study showed that 1-MCP treatment maintained the higher level of superoxide dismutase(SOD)and catalase(CAT)activities, decreased polyphenol oxidase (PPO)activity and inhibited the increase of peroxidase(POD)activities of fruits. Application of 1.00 μL · L-1 1-MCP treatment had a better effect.

Key words: sweet persimmon, 1-MCP, enzymatic activity, chilling injury, storage

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