Overexpression of Transcription Factor GmTGA15 Enhances Drought Tolerance in Transgenic Soybean Hairy Roots and Arabidopsis Plants

Soybean (Glycine max) is one of the important oil crops worldwide. In recent years, environmental stresses such as drought and soil salinization have severely deteriorated soybean yield quality. We investigated overexpression transcription factor GmTGA15 in response to stress transgenic hairy roots Arabidopsis plants. The results quantitative real time polymerase chain reaction (qRT-PCR) analyses showed that was greatly induced by salt, PEG6000, salicylic acid (SA), gibberellic (GA), abscisic (ABA), methyl jasmonate (MeJA) soybean. stress, contents both chlorophyll proline were significantly increased, while content malondialdehyde (MDA) decreased with comparison wild type (WT). Under simulated conditions, plants longer lower mortality than type. These suggest promotes tolerance This study provides scientific evidence for further functional analysis TGA factors breeding drought-resistance crops.