CAJ | 학술논문

从高亲和性和低亲和性K~+吸收两个方面较详细介绍了K~+营养的吸收机制.高亲和性K~+吸收机制包括H~+-K~+交换ATPase、K~+-ATPase、H~+-K~+ symporter和Na~+-K~+ symporter;低亲和性K~+吸收机制也被称为"协助扩散",研究表明是通过K~+通道进行的,但K~+通道的确切结构尚无定论.综述了植物K~+吸收的调节,并对相关问题进行了展望.
종고친화성화저친화성K~+흡수량개방면교상세개소료K~+영양적흡수궤제.고친화성K~+흡수궤제포괄H~+-K~+교환ATPase、K~+-ATPase、H~+-K~+ symporter화Na~+-K~+ symporter;저친화성K~+흡수궤제야피칭위"협조확산",연구표명시통과K~+통도진행적,단K~+통도적학절결구상무정론.종술료식물K~+흡수적조절,병대상관문제진행료전망.
The paper summed up the advances of potassium uptake mechanism in biochemical molecular fields involved in potassium channel, high-affinity potassium transporter and H~+-ATPase.The potassium transport in plants correlates respectively to the three types of proteins coded by different potassium transporter family.The review focus-es on describing the characteristic of the cloned K~+ transporters and their possible roles in mediating high and low-affinity K~+ uptake from the soil as well as how K~+ acquisition regulated with the different level of K~+.