Abstract:

Some plants could accumulate glycine betaine by self synthesis so as to alleviate the injury caused by drought, low temperature and salt stress. Meanwhile it could promote the accumulation amount of glycine betaine by genetic engineering or exogenous application for plants which could not make by themselves. This article summarized main research progress on discovery, biosynthetic pathway and applications of glycine betaine in plants, meanwhile evaluated research status, existing problems and application prospect of glycine betaine in tobacco. At last, we concluded that glycine betaine had the popularization and application potential in paddy yield of tobacco for its low cost, little dosage and strong stress resistence.