%0 Journal Article
%T Effects of Nitrogen Forms on Nitrogen Metabolism-related Enzymes and Growth of Phellodendron amurense Seedlings<br>氮素形态对黄檗幼苗生长及氮代谢相关酶类的影响
%A Xia Li
%A Xiufeng Yan
%A Jianfeng Liu
%A <br>李霞
%A 阎秀峰
%A 刘剑锋
%J 植物学报
%D 2006
%I 
%X The NH4+-N/NO3--N ratio of nutrient solutions was shifted to study the effects of nitrogen forms on enzymes related to nitrogen metabolism of corktree seedlings (Phellodendron amurense). Nutrient solutions with a higher NO3--N than NH4+-N content were beneficial for growth, and the content of chlorophyll and soluble protein in leaves with this treatment was also high. The highest biomass occurred when the NH4+-N/NO3--N ratio reached 25/75. Glutamine synthetase (GS) activity in corktree seedlings increased with NH4 +-N ratio, whereas nitrate reductase (NR) activity increased with increasing NO3--N ratio. The nitrogen form and ratio in nutrition solution could control nitrogen metabolism by affecting GS and NR activities.
%K <br>黄檗
%K 氮素形态
%K 氮素代谢
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=97AE3D0EBF25E42C466FEF50E492F710&aid=29B5B7CD3ACBA1EBDEB0137540B9CC2B&yid=37904DC365DD7266&vid=EA389574707BDED3&iid=38B194292C032A66&sid=627456E7977439A4&eid=4D7D059FFBF006B9&journal_id=1674-3466&journal_name=植物学报&referenced_num=1&reference_num=29