棉花学报2009，Vol.21Issue(4)：319-323,5.
海岛棉棉铃发育过程中糖与纤维素含量变化
Dynamics of Sugar and Cellulose Synthesis in Bolls of Island Cotton (Gossypium barbadense L)
摘要
Abstract
Sugar contents and cellulose deposition were monitored in the bolls of two varieties Xinhai 21 and Xinhai 28(YX-193 and XH-28) of island cotton in South Xinjiang in 2006 and 2007.After anthesis, total sugars in boll shells, seeds and fiber kept increasing and reached their maximum level at 21-28 days post anthesis (DPA).After that the sugar contents rapidly declined and reached the low level at the boll opening period.The cellulose was synthesized starting form 14 DPA and reached a peak at the boll opening stage.Soluble solids contents in fibers kept decreasing linearly during the boll development.Total soluble sugars, reducing sugars and their conversion rates showed an order as: fibers ＞seeds ＞boll shells, and were generally higher in YX-193 than in XH-28.The results indicate that sugar unloading and conversion capacities in bolls are related to fiber development and YX-193 has advantages over XH-28.关键词
海岛棉/棉铃发育/可溶性糖/还原糖/纤维素Key words
island cotton (Gossypium barbadense L)/boll development/sugar metabolism/reducing sugars/cellulose synthesis分类
农业科技引用本文复制引用
边如欣,刘明,范君华,曹娟,张建华..海岛棉棉铃发育过程中糖与纤维素含量变化[J].棉花学报,2009,21(4):319-323,5.基金项目
教育部骨干教师资助项目,塔里木大学(2004-10,TDZKQN06002, 2005-02)和香港UGC和RGC 项目 (AoE/B-07/99, HKBU 262307) （2004-10,TDZKQN06002, 2005-02）
