南方农业学报2011，Vol.42Issue(4)：384-387,4.
转化酶与甜瓜果实膨大及糖分积累相关研究
The relationship between invertase activity and sucrose accumulation during the development of fruits in melon
摘要
Abstract
[Objective]The present experiment was conducted to elucidate the relationship between invertase activity in fruits and leaves, and sucrose accumulation and development in melon to provide reference for its quality improvement.[Method]Some agronomic traits, soluble sugar content in fruits and the activity of invertase enzyme in leaves and fruits were determined at different growing stages of melon varieties Fengmi 2 and Haoyun 52. [Result]The fruit of two melon varieties started to developed within 16 d of pollination. At this stage, an increase in reducing sugar content were observed, the activities of acid invertase and neutral irtvertase in fruits and leaves were decreased sharply. And the sucrose content was very low during this period, however, it increased rapidly after this. The activities of acid inverlase and neutral invertase in pulp declined after 16 d of pollination, however, the activity of neutral invertase in leaves showed rising trend. [Conclusion]The fruit of two melon varieties developed rapidly within the 16 d after pollination, however, its gowth rate slowed down at 24 d after pollination. During this period, the sucrose accumulated rapidly and invertase activity reduced to a lower level. Results revealed a significant negative correlation between the reducing sugar content of melon fruits and activity of neutral invertase in pulp in both varieties. However, the sucrose accumulation and leaf neutral invertase showed a significant positive correlation in leaves of Fengmi 2.关键词
甜瓜/果实膨大/蔗糖积累/转化酶/相关分析Key words
melon/ fruit development/ sucrose accumulation/ invertase/ correlation分类
农业科技引用本文复制引用
罗海玲,黄玉辉,张曼,王日升,黄如葵,何龙飞..转化酶与甜瓜果实膨大及糖分积累相关研究[J].南方农业学报,2011,42(4):384-387,4.基金项目
广西农业科学院科技发展基金项目(2007007) （2007007）
