热带作物学报2018，Vol.39Issue(1)：77-83,7.DOI:10.3969/j.issn.1000-2561.2018.01.013
1-MCP和乙烯利处理对采后菠萝蜜果实活性氧代谢的影响
Effects of 1-MCP and Ethephon Treatment on Reactive Oxygen Metabolism of Postharvest Jackfruit
摘要
Abstract
The effects of 0.5 mg/L 1-MCP and 1000 mg/L ethephon treatment on the active oxygen metabolism in harvested'Haida No.2'jackfruit during storage at ambient temperature (22±1)℃ and its relation to reactive oxygen species,defense enzyme activities and antifungal substance contents involved were investigated to provide a theoretical basis for preservation of jackfruit.The results showed that with the ripening of jackfruit fruits,LOX activity,contents of H2O2 and MDA increased rapidly.The activities of CAT and APX continuously decreased and the activities of SOD,POD and contents of GSH and ASA increased first and then decreased.Ethephon treatment significantly enhanced LOX activity and reduced POD,APX and pre-storage SOD activity,accelerated the accumulation of H2O2 and MDA in the middle of storage.1-MCP treatment decreased the production of reactive oxygen species by very noticeably reducing the activity of LOX and the contents of H2O2 and MDA.At the same time,it enhanced the reactive oxygen scavenging capacity by significantly increased the activities of SOD,CAT,POD,APX and contents of GSH and reduced ASA.These results suggest that ethephon and 1-MCP play an important role in regulating the production of reactive oxygen species,the activity of protective enzymes and the content of reducing substances in the ripening of jackfruit.关键词
菠萝蜜/乙烯利/1-MCP/活性氧代谢Key words
jackfruit/ethephon/1-MCP/active oxygen metabolism分类
农业科技引用本文复制引用
谢忠斌,叶春海,任雪岩,丰锋,王俊宁..1-MCP和乙烯利处理对采后菠萝蜜果实活性氧代谢的影响[J].热带作物学报,2018,39(1):77-83,7.基金项目
国家自然科学基金青年科学基金(No.31401928) （No.31401928）
广东省自然科学基金博士启动项目(No.S2013040011544) （No.S2013040011544）
广东海洋大学引进人才科研启动项目(No.1312130) （No.1312130）
广东海洋大学大学生创新训练项目(No.CXXL201410566078,No.GDOU2016055) （No.CXXL201410566078,No.GDOU2016055）
国家级农科教合作人才培养基地(No.GDOU2013040301) （No.GDOU2013040301）
教育部卓越农林人才培养计划(园艺,No.GDOU2014041204). （园艺,No.GDOU2014041204）
