DOI: 10.36347/sajb.2015.v03i11.017

Pages: 974-980

Trehalose-6-phosphate synthase (TPS), as the key enzyme for the synthesis of plants trehalose, has effects of enhancing its anti-dehydration, as well as protecting biofilm, proteins, and others from harm. Additionally, reproductive isolation between species can be broken with transgenic technology, and beneficial gene of other species can be transformed and utilized to improve resistance of crops. Rice, maize and other crops once were transformed with SOD, DREB and other drought stress tolerance genes at home and abroad, trying to improve its drought tolerance. However, the drought tolerance of transgenic offspring cannot achieve the requirements of agricultural production due to weak drought resistant ability of these genes, incongruity between drought-resistance mechanism and metabolic mechanism of these crops, and other factors. The transformation of TPS genes will be a new direction for studying stress resistance of crops in recent years.