%0 Journal Article
%T Effect of Nitrate Nitrogen on Activities of Glutamine Synthetase and Glutamate Dehydrogenase during Development of Cucumber Cotyledon<br>硝态氮对黄瓜子叶谷氨酰胺合成酶和谷氨酸脱氢酶活性的影响
%A WANG Yun-Hua
%A WANG Zhi-Qiang
%A ZHANG Chu-Fu
%A ZHOU Zhong-Xin
%A MA Jing-Kun
%A OU Ji-Quan Sciences
%A Wuhan University
%A Wuhan
%A China
%A <br>王云华
%A 王志强
%A 张楚富
%A 周忠新
%A 马敬坤
%A 欧吉权
%J 植物科学学报
%D 2004
%I 
%X The content of the soluble protein and the activities of glutamine synthetase and glutamate dehydrogenase were determined in the development of cucumber(Cucumis sativus L.) cotyledon at the presence or absence of nitrate. In the early days of the development, the level of the protein and the activities of GS, NADH-GDH, and (NAD~+-GDH) in each pair of cotyledons increased whether exogenous nitrogen was existent or not. After 4 days, the level of the protein was constant roughly, though it was declined little at the presence of the exogenous nitrogen. The activities of GS and NADH-GDH fell gradually, but NAD~+-GDH was raised markedly. At the absence of the exogenous nitrogen, the levels of the protein, GS, NADH-GDH, and (NAD~+-GDH) decreased gradually at the same stage. In the whole course of the development, the activities of GS and NAD~+-GDH increased by exogenous nitrogen, and NAD~+-GDH activity was promoted remarkably in the late stage of the development particularly.
%K Glutamine synthetase
%K Glutamate dehydrogenase
%K Nitrate
%K Cucumber(Cucumis sativus L
%K ) cotyledon
%K Development<br>谷氨酰胺合成酶
%K 谷氨酸脱氢酶
%K 硝态氮
%K 黄瓜子叶
%K 发育
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=9973DE552EA54506F7AABD4780345ED2&aid=1E832918EBC1BD3E&yid=D0E58B75BFD8E51C&vid=BC12EA701C895178&iid=B31275AF3241DB2D&sid=D45762219109E903&eid=E49BED2EA9A8956B&journal_id=1000-470X&journal_name=武汉植物学研究&referenced_num=11&reference_num=20