河南农业大学学报2018，Vol.52Issue(3)：307-312,6.
外源Zn2+对冬小麦幼苗根系生长及部分氮代谢关键酶的影响
Effects of exogenous Zn2+on root growth and some key enzymes in nitrogen metabolism in winter wheat seedlings
摘要
Abstract
This study was to investigate the effects of exogenous Zn2+ on root growth and key enzymes in nitrogen metabolism in winter wheat seedlings by hydroponics test.Two wheat cultivars Yangao 006 and Ping'an 8 were used as a sample wheat.Four dosages of zinc(0,15,30,60 mg·L-1)were set up in this study.Samples were collected and analyzed on 7 d and 14 d after Zn2+treatment.The hy-droponic experiments were carried out in April 2017.The results showed that compared with the con-trol,the root length,root volume,root tops and root forks significantly increased under the Zn15 treat-ment of two varieties of winter wheat,the highest activity of nitrate reductase and glutamine synthetase under the Zn15 treatment,and Ping'an 8 which was higher than Yangao 006,each index were signifi-cantly decreased under the Zn60 treatment.Thus,it can promote root growth,increase nitrate reduc-tase and glutamine synthetase activities,and promote nitrogen absorption of two varieties of winter wheat with a suitable concentration of exogenous Zn2+.关键词
冬小麦幼苗/Zn2+/幼苗生长/硝酸还原酶/谷氨酰胺合成酶Key words
winter wheat seedlings/Zn2+/seedlings growth/nitrate reductase/glutamine synthase分类
农业科技引用本文复制引用
王佳,聂兆君,扶海超,郭佳佳,路育茗,秦晓明,刘红恩,赵鹏..外源Zn2+对冬小麦幼苗根系生长及部分氮代谢关键酶的影响[J].河南农业大学学报,2018,52(3):307-312,6.基金项目
国家重点研发计划项目(2017YFD0201700) （2017YFD0201700）
