棉花种子胚胎发生和萌发的发育生物化学：X. 萌发过程中精氨酸到天冬酰胺的氮素流。
Developmental biochemistry of cotton seed embryogenesis and germination: x. Nitrogen flow from arginine to asparagine in germination.
机构信息
Department of Biochemistry, University of Georgia, Athens, Georgia 30602.
出版信息
Plant Physiol. 1978 Apr;61(4):698-702. doi: 10.1104/pp.61.4.698.
Abstract
The enzymic basis for the flow of nitrogen from arginine to asparagine during the first 3 days of germination has been measured in extracts from cotton (Gossypium hirsutum) cotyledons. Evidence that asparagine synthetase regulates asparagine accumulation in germination (for transport to the axis) is presented. Further, evidence that the bulk of the nitrogen passed from one generation to the next in dicots is through an asparagine cycle involving the following sequence asparagine --> arginine --> storage protein --> arginine --> asparagine is discussed.
摘要
在棉花（Gossypium hirsutum）子叶的提取物中测量了在萌发的头 3 天中从精氨酸到天冬酰胺的氮流动的酶促基础。提出了天冬酰胺合成酶调节萌发中天冬酰胺积累（用于向轴运输）的证据。此外，还讨论了在双子叶植物中氮从一代传递到下一代的大部分是通过涉及以下序列的天冬酰胺循环完成的：天冬酰胺->精氨酸->储存蛋白->精氨酸->天冬酰胺。
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