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当前位置: 首页 > 文章 > 河南省不同地区烤烟碳氮代谢与衰老启动关系的分析 河南农业科学 2011,40 (6) 58-61
Position: Home > Articles > Analysis on the Relationship between Carbon and Nitrogen Metabolism of Tobacco and the Beginning of Senescence in Different Regions of Henan Journal of Henan Agricultural Sciences 2011,40 (6) 58-61

河南省不同地区烤烟碳氮代谢与衰老启动关系的分析

作  者：
杜铮;魏庆华;刘卫群
单  位：
河南农业大学烟草学院;河南农业大学生命科学学院
关键词：
烤烟;衰老;蔗糖;谷氨酰胺合成酶;次生代谢
摘  要：
以烤烟NC89为材料,研究了河南宝丰和确山两地区碳氮代谢关键物质和关键酶的变化趋势,以及次生代谢物质的变化,分析了两地区不同时期碳氮代谢的强度和协调程度。结果表明,确山地区烤烟较低的碳代谢引起蔗糖的积累。由于游离氨的限制,两地区谷氨酰胺合成酶的活性变化趋势基本一致。烟叶生长发育过程中,宝丰烟叶碳代谢比确山高;移栽后98 d,宝丰烤烟积累的蔗糖比确山烤烟高160%,加速了宝丰烤烟进入次生代谢的进程,积累了较多的次生代谢物。
译  名：
Analysis on the Relationship between Carbon and Nitrogen Metabolism of Tobacco and the Beginning of Senescence in Different Regions of Henan
作  者：
DU Zheng1,WEI Qing-hua1,LIU Wei-qun2(1.Tobacco College,Henan Agricultural University,Zhengzhou 450002,China;2.College of Life Science,Henan Agricultural University,Zhengzhou 450002,China)
关键词：
Tobacco;Senescence;Sucrose;GS;Secondary metabolism
摘  要：
Taking NC89 as materials,this article investigated the variation trends of the key materials and the key enzymes in carbon and nitrogen metabolism,and the variation trends of the secondary metabolites.In order to explain the beginning of senescence and its effect on the secon-dary metabolites,the intensity and the degree of coordination of carbon and nitrogen metabolism during different periods at both regions were analyzed.The results showed that the accumulation of sucrose was due to its low strength of carbon metabolism.Because of the restriction of free ammonia,glutamine synthetase(GS) activity was simillar in both regions.In the tobacco growth process,tobaccos in Baofeng had stronger carbon metabolism than Queshan.At 98 days after transplanting,tocbaccos in Baofeng had accumulated 160% sucrose than Queshan,which accele-rated the secondary metabolism process of Baofeng and accumulated more secondary metabolites.

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