Comparison of Biochemical Substances in the Fiber Development of Different Cotton Varieties  

不同棉花品种棉纤维发育过程中生化物质的比较（英文）

作　　者：葛杰[1] 罗淑萍[1] 马德英[1] 羌松[1] 姚正培[1] 

机构地区：[1]新疆农业大学农学院,新疆乌鲁木齐830052

出　　处：《Agricultural Science & Technology》2015年第3期439-441,共3页农业科学与技术（英文版）

基　　金："973"计划前期研究专项(2008CB117014)~~

摘　　要：Zhongmian 42 and Xinluzao 36 were used as raw materials to determine the contents of soluble sugar and protein, as well as dynamic changes of enzyme activities after flowering during cotton fiber growth. The results showed that contents of soluble protein in the two species sharply declined 7 to 21 days after flowering, as the soluble sugar in Zhongmian 42 leveling off after 21 days of flowering while the soluble sugar in Xinluzao 36 dropped notably after 21 days of flowering before remaining stable after seven days later. The soluble sugar decreased 7 to 14 days after flowering before sharply rising to the maximum seven days later, and then began to decline quickly. The soluble sugar was the minimum after 35 days of flowering and then remaining stable. Peroxidase activity generally increased. Indole-3- acetic acid oxidase activities were low at 7 days after flowering. IAAO activity reached to the peaks on the 14th and 28th day after flowering. IAAO activity of two varieties decreased with the same trend 35 days after flowering.选用陆地棉品种中棉42和新陆早36为材料,测定了开花后棉纤维发育过程中可溶性糖和可溶性蛋白质含量及相关酶活性的动态变化。结果表明,棉纤维发育过程中两品种的可溶性蛋白质含量在开花后7~21 d急剧下降,其中中棉42在开花21 d后趋于平缓,新陆早36在开花21 d后仍下降明显,在开花后28 d才趋于平缓;可溶性糖含量在开花后7~14 d下降,至开花后14 d又急剧上升,开花后21 d时达到最大值,随后又开始快速下降,开花后35 d时可溶性糖含量最小,此后趋于平缓;过氧化物酶（POD）活性总体呈上升趋势;吲哚乙酸氧化酶（IAAO）活性在开花后7 d较低,开花后14 d和28 d左右是棉铃发育中IAAO活性的峰值,开花35d后两品种棉花IAAO活性都在降低并且变化趋于一致。

关 键 词：Cotton （Gossypium hirsutum L.） Cotton fiber Soluble sugar Soluble protein PEROXIDASE Indole-3-acetic acid oxidase 

分 类 号：S562[农业科学—作物学]