欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2006, Vol. 22 ›› Issue (4): 252-252.

所属专题： 生物技术； 棉花

• 目次 • 上一篇    下一篇

棉花不同品种叶片和纤维中蔗糖磷酸合成酶活性变化 及其与糖含量的关系

刘凌霄,沈法富,范作晓,卢合全,谢庆恩,王元格   

  • 出版日期:2006-04-05 发布日期:2006-04-05

Dynamic Activity Changes of Sucrose Phosphate Synthase and Correlation with Sugar Content in Leaves and Fibres of Different Cotton Cultivars

Liu Lingxiao, Shen Fafu, Fan Zuoxiao, Lu Hequan, Xie Qingen, Wang Yuange   

  • Online:2006-04-05 Published:2006-04-05

PDF (PC)

621

摘要： 利用山农棕02、丰抗6号、中棉45 3个品种在大田栽培的条件下，研究了叶片和纤维中蔗糖磷酸合成酶活性的变化及与糖含量的关系。结果表明，在3个品种的叶片和纤维中，蔗糖磷酸合成酶活性均出现双峰，在开花当天最高，花后18d次之，整体呈下降趋势；与此同时可溶性总糖和蔗糖的含量变化以及光合速率的变化也成相似的变化。3个品种中，丰抗6号蔗糖磷酸合成酶活性和含糖量最高，中棉45次之，山农棕02最低。3个品种的相应观测指标之间均呈极显著差异。

关键词: 强（弱）筋小麦, 强（弱）筋小麦, 加工品质, 氮磷钾效应

Abstract: The study showed that under field condition, the activities of Sucrose Phosphate Synthase(SPS) appeared double peaks at blooming day and 18 days post anthesis(DAP) in leaves and cotton fibres of Shannong Brown 02, Fengkang 6 and Zhongmiansuo 45; the first peak surpassed the second peak and it decreased as a whole. And simultaneously soluble sugar content, sucrose content and photosynthesis rate had the same changes. The values of SPS activity, soluble sugar content, sucrose content and photosynthesis rate were the highest in Fengkang 6, second in Zhongmiansuo 45, third in Shannong Brown 02. The three cotton cultivars differ very significantly (P<1%) in corresponding observation index.

中图分类号: