一种海洋硅藻对硝酸盐和尿素的钠依赖性摄取。
Sodium-dependent uptake of nitrate and urea by a marine diatom.
作者信息
Rees T A, Cresswell R C, Syrett P J
出版信息
Biochim Biophys Acta. 1980 Feb 15;596(1):141-4. doi: 10.1016/0005-2736(80)90178-9.
PMID:7353005
Abstract
Uptake of nitrate and urea by Phaeodactylum tricornutum is shown to be a sodium dependent process inhibited by lithium or potassium. The half-saturation constant for sodium (KNa) was 2.6 mM for nitrate uptake and 71 mM for urea uptake. It is suggested that sodium dependent uptake mechanisms may be characteristic of marine plants.
摘要
三角褐指藻对硝酸盐和尿素的吸收被证明是一个依赖钠的过程，会受到锂或钾的抑制。硝酸盐吸收的钠半饱和常数（KNa）为2.6 mM，尿素吸收的钠半饱和常数为71 mM。研究表明，依赖钠的吸收机制可能是海洋植物的特征。
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