棕色棉纤维发育过程中碳水化合物和色素的变化特征  

Dynamics of Carbohydrate and Pigment Content During Fiber Development in Brown-colored Cotton

作　　者：华水金[1] 王学德[1] 赵向前[1] 倪密[1] 袁淑娜[1] 蒋立希[1] 

机构地区：[1]浙江大学农业与生物技术学院,杭州310029

出　　处：《棉花学报》2008年第3期239-240,F0003,共3页Cotton Science

基　　金：国家"973"项目(2004CB11730502);浙江省自然科学基金项目(Y306093);浙江省科技项目(2008C22087)

摘　　要：以深棕色棉、棕色棉、浅棕色棉和白色棉(对照)为材料,研究了纤维发育过程中碳水化合物和色素的变化特征。结果表明,在开花当天至开花后10d,白色棉纤维中的可溶性总糖和蔗糖含量最高;其次为浅棕色棉,棕色棉和深棕色棉含量较低且接近;从开花后15d至纤维成熟期棕色棉和白色棉纤维中总糖和蔗糖含量差异不大。整个纤维发育期内果糖含量一直呈下降趋势,且棕色棉和白色棉差异不明显。从开花当天至纤维成熟时,纤维中的色素含量从高到低依次为:深棕色棉>棕色棉>浅棕色棉>白色棉,说明棕色棉纤维因色素的大量积累将消耗部分碳水化合物。One of the most distinctive points of brown cotton fiber is a lot of pigment accumulation during fiber development compared with white cotton fiber. So, dynamics of carbohydrate and pig-ment content during fiber development was characterized using dark brown, brown, light brown, and white fiber cotton as plant materials. Results showed that white cotton fiber had the hightest soluble sugar and sucrose content from the day of anthsis to 10 DPA （days post anthesis）. Brown and dark brown cotton fiber had lower sugar content, and their sugar content was similar at the same development stage. From 15 DPA on, total soluble sugar and sucrose content both in brown and white fiber was close. As for fructose content, variation between brown and white cotton fiber was not obvious and showed a decline trend during whole fiber development stage. Pigment content in cotton fiber was dark brown〉brown〉light brown〉white from anthesis to fiber maturation indicating that carbohy-drate would be partially consumed due to pigment synthesis in brown cotton fiber.

关 键 词：棕色棉 碳水化合物 色素 

分 类 号：S562[农业科学—作物学]