江西农业学报Issue(8)：43-45,3.
不同烤烟品种成熟期碳氮代谢关键酶活性的变化
Changes in Activity of Key Enzymes in Carbon-Nitrogen Metabolism of Different Flue-cured Tobacco Varieties at Mature Stage
摘要
Abstract
In order to understand the rule of carbon-nitrogen metabolism of main flue-cured tobacco varieties in Nanxiong ar-ea,the author studied the changes in the activity of key enzymes in carbon-nitrogen metabolism of three flue-cured tobacco varie-ties(Yueyan 97,Yueyan 98 and K326)at mature stage. Along with the maturity of tobacco leaves,the total chlorophyll content, nitrate reductase activity,and invertase activity in the tobacco leaves of three varieties all showed a downward trend,while the amyl-ase activity increased first and then decreased. The total chlorophyll content was the highest in Yueyan 98 and the lowest in Yueyan 97 in earlier mature period,but the degradation rate of chlorophyll was higher in Yueyan 98 and lower in Yueyan 97. At earlier ma-ture stage,the nitrate reductase activity of K326 and Yueyan 98 was very significantly higher than that of Yueyan 97. There were no significant differences in invertase activity and amylase activity among various flue-cured tobacco varieties in whole mature period. On the whole,the coordination of carbon-nitrogen metabolism of Yueyan 98 was relatively good.关键词
烤烟/碳氮代谢/叶绿素/硝酸还原酶/转化酶/淀粉酶Key words
Flue-cured tobacco/Carbon-nitrogen metabolism/Chlorophyll/Nitrate reductase/Invertase/Amylase分类
农业科技引用本文复制引用
陈永明,王行,赵伟才,罗慧红..不同烤烟品种成熟期碳氮代谢关键酶活性的变化[J].江西农业学报,2014,(8):43-45,3.基金项目
中国烟草总公司特色优质烟叶开发重大专项“浓香型特色优质烟叶开发”（110201101001）；广东省烟草专卖局（公司）科技项目“广东浓香型特色优质烟叶开发”（201101）。 （）
