向日葵植物中铷的两种摄取方式。
Two modes of rubidium uptake in sunflower plants.
机构信息
Departamento de Agronomía, Escuela Técnica Superior de Ingenieros Agrónomos, E-14071 Córdoba, Spain.
出版信息
Plant Physiol. 1989 Jul;90(3):939-42. doi: 10.1104/pp.90.3.939.
Abstract
The Rb(+)-uptake kinetics in K(+)-starved sunflower (Helianthus annuus) plants can be explained by the addition of two Michaelis-Menten equations. In contrast, Rb(+) uptake can be described by a single Michaelis-Menten equation in normal-K(+) plants. Differences in the K(m)s and in the Arrhenius plots of Rb(+) uptake in the two types of plants suggest two uptake modes.
摘要
在 K(+)饥饿的向日葵（Helianthus annuus）植物中，Rb(+)的摄取动力学可以通过添加两个米氏方程来解释。相比之下，在正常 K(+)植物中，Rb(+)的摄取可以用单个米氏方程来描述。两种植物中 K(m)和 Rb(+)摄取的阿累尼乌斯图的差异表明存在两种摄取模式。
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