江西农业大学学报2017，Vol.39Issue(1)：43-49,7.DOI:10.13836/j.jjau.2017006
乙烯对采后菠萝蜜果实碳水化合物代谢及其酶活性的影响
Effects of Ethylene on Carbohydrate Metabolism and Enzyme Activities in Postharvest Ripening Jackfruit
摘要
Abstract
The effects of ethephon and 1-MCP ( 1-Methylcyclopropene ) on carbohydrate metabolism and activities of the related enzymes were studied in the fruit of 'Haida 2 ' Jackfruit during the ripening period were studied.The results showed that the soluble sugars (mainly sucrose) content increased with the decrease of the starch content in the fruit ripening process.A single peak of the total amylase and SPS activity of jack-fruit was observed during storage.Correlation analysis showed that the decrease of soluble sugar content had a significantly negative correlation with the increase of starch content,and a significantly positive correlation withSPS activity.The change of starch content had no significant correlation with the total amylase activity.Ethephon significantly increased the activity of total amylase and SPS (P<0.01),and shifted the peak of amylase and SPS activity 2 and 4 days earlier,respectively.1-MCP significantly slowed the degradation of starch but also de-layed the accumulation of soluble sugars.1-MCP treatment reduced the early total amylase enzyme and SPS ac-tivity,and delayed the time of its activity peak for 8 days,but significantly increased the total amylase activity peak (P<0.01),and had no significant effect on the SPS activity peak.Ethephon and 1-MCP treatment signifi-cantly increased the fructose and glucose levels,but had no significant effect on the sucrose and total soluble sugar content in the ripe fruit.It is suggested that starch and sucrose may be a key in carbohydrate metabolism of jackfruit,and ethylene has an important effect on carbohydrate metabolism,total amylase and sucrose phos-phate synthase activities in the postharvest maturity of jackfruit fruit.关键词
菠萝蜜/乙烯利/1-MCP/碳水化合物代谢/酶活性Key words
jackfruit/ethephon/1-MCP/carbohydrate metabolism/enzyme activities分类
农业科技引用本文复制引用
王俊宁,马静,丰锋,杨转英,叶春海..乙烯对采后菠萝蜜果实碳水化合物代谢及其酶活性的影响[J].江西农业大学学报,2017,39(1):43-49,7.基金项目
国家自然科学基金青年科学基金(31401928)、广东省自然科学基金博士启动项目(S2013040011544)、广东海洋大学引进人才科研启动项目( 1312130)和广东海洋大学大学生创新项目( CXXL2014068) Project supported by the National Natural Science Foundation of China (31401928),the PhD Start-up Fund of Natural Science Foundation of Guangdong Province ( S2013040011544) ,Scientific Research Foundation for Tal?ented Scholars (1312130) and undergraduate innovative experiment project (CXXL2014068) of Guangdong O?cean University （31401928）
