壳聚糖对茶树氮代谢影响  

Effects of chitosan on nitrogen metabolism of tea plant.

作　　者：骆耀平[1] 唐萌[1] 任明兴[1] 

机构地区：[1]浙江大学茶学系,浙江杭州310029

出　　处：《浙江大学学报（农业与生命科学版）》2007年第3期298-301,共4页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：浙江省教育厅资助项目(20030255);浙江省武义县科技局资助项目(2004-5-24)

摘　　要：选取龙井43、浙农113两个盆栽茶树品种,研究不同浓度的壳聚糖液喷施茶树叶片,对茶树叶片内硝酸还原酶活性、全氮和可溶性蛋白含量变化的影响.结果表明:在0、50、100、150、200 mg·L-15种不同的壳聚糖溶液喷施浓度处理下,浓度低于150 mg·L-1时,随着喷施浓度提高,茶树叶片中全氮、可溶性蛋白含量和硝酸还原酶活性均呈现提高趋势,但进一步增加至200 mg·L-1时,上述3项测定指标值下降.说明壳聚糖对茶树氮代谢具有一定的调节作用.Two pot-cultivated tea cultivars including Longjing43 and Zhenong113 were used to investigate the effect of chitosan on the activity of nitrate reductase and contents of total nitrogen and soluble protein in leaves of tea plant by foliar spraying. The results showed that： among the 5 treatments of chitosan at concentrations of 0, 50, 100, 150 and 200 mg·L^-1, the activity of nitrate reductase and the contents of total nitrogen and soluble protein in leaves of tea plant increased with the increase of chitosan concentration, and then decreased when the concentration of chitosan was increased to 200 mg·L^-1 . The results suggests that the chitosan can regulate nitrogen metabolism of tea plant.

关 键 词：壳聚糖 茶树 氮代谢 硝酸还原酶 可溶性蛋白 

分 类 号：S571.1[农业科学—茶叶生产加工]