Identification of genes regulating hrpG expression in Xanthomonas oryzae pv. oryzae Application of molecularly imprinted technology for separation of PGG from Guizhi Fuling capsule Overexpression of a Zinc-finger Protein Gene AmZFPG from Ammopiptanthus mongolicus Confers Tolerance to Cold , Drought and Salt Stress in Transgenic Tobacco Determination of 1,2,3,4,6-penta-O-galloyl-D-glucose in forty four kinds of Chinese traditional medicines by HPLC Overexpression of a Zinc-finger Protein Gene AmZFPG from Ammopiptanthus mongolicus Confers Tolerance to Cold , Drought and Salt Stress in Transgenic Tobacco