EsDREB2B a novel truncated DREB2-type transcription factor in the desert legume Eremosparton songoricum enhances tolerance to multiple abiotic stresses in yeast and transgenic tobacco

摘要

BackgroundDehydration-Responsive Element-Binding Protein2 (DREB2) is a transcriptional factor which regulates the expression of several stress-inducible genes. DREB2-type proteins are particularly important in plant responses to drought, salt and heat. DREB2 genes have been identified and characterized in a variety of plants, and DREB2 genes are promising candidate genes for the improvement of stress tolerance in plants. However, little is known about these genes in plants adapted to water-limiting environments.