甜菜碱在提高烟草抗逆性中的作用

The Role of Glycine Betaine in Improving Tobacco Stress Resistance

甜菜碱(GB)是植物在胁迫下积累的一种渗透保护剂。介绍了甜菜碱在植物中的作用机理,以及高盐度、干旱、高温、低温和重金属逆境下添加外源甜菜碱或转甜菜碱基因对烟草内部相关变化的研究进展,旨在为甜菜碱增强烟草抗逆性和提高品质、产量提供参考。

Glycine betaine(GB)is an osmoprotectant accumulated in plants under stress.The mechanism of glycine betaine in plants and the related changes under high salinity,drought,high temperature,low temperature and heavy metal stress with the addition of exogenous betaine or transbetaine genes were introduced in tobacco in this paper.This article would provide a reference for glycine betaine to enhance stress resistance and quality yield of tobacco.