烟草钾离子通道研究进展

Research Advances in Tobacco Potassium Ion Channel

摘要: K⁺通道是烟草吸收K⁺的重要途径之一。近年来，已从多种植物或同种植物的不同组织器官中分离到多种K⁺通道基因。笔者从K⁺通道基因类型、K⁺通道基因的克隆与功能、K⁺吸收机制和K⁺通道分子调控技术等方面综述了烟草K⁺通道研究现状与进展。对应用生物工程技术改良烟草的钾营养性状进行了讨论，并对利用现代生物技术手段提高烟叶含钾量进行了展望。

Abstract: K⁺ channel is one of the important pathway for tobacco absorbing K⁺. In recent years, Many K⁺ channel genes have been cloned from various plants or different organization of same plant. In this paper, the type of K⁺ channel gene, cloning and function of K⁺ channel, K⁺ absorption mechanism and molecular regulation technology of K⁺ channel are summarized. Applying biotechnology to improve tobacco potassium nutrition character is discussed, and utilizing the modern biotechniques to improve the potassium content of tobacco leaves is proposed.