Identification of a 301 bp promoter core region of the SrUGT91D2 gene from Stevia rebaudiana that contributes to hormone and abiotic stress inducibility oleh Jinsong Chen, Renlang Liu, Chengcheng Lyv, Mengyang Wu, Siqin Liu, Meiyan Jiang, Yurou Zhang, Dongbei Xu, Kai Hou, Wei Wu