利用酶联免疫吸附法(ELISA)测定了东北红豆杉雌株枝、叶生长过程中脱落酸(ABA)、吲哚乙酸(IAA)、赤霉素(GA)及玉米核苷素(ZR)的含量变化,测定结果表明:4种内源激素中ABA,GA含量较高,IAA,ZR含量明显少于前两者;在生长期IAA,ZR含量增加;在休眠期ABA,GA含量明显高于生长期;叶中4种内源激素含量高于枝中内源激素的含量. Abscisic acid (ABA), IAA, GA and ZR were measured by enzyme-linked immunosorbent assay (ELISA) The contents of IAA and ZR in the four endogenous hormones were significantly lower than those in the former two. The content of IAA and ZR increased in the growth stage, while the contents of ABA and GA in the dormancy stage were significantly higher than those in the first two stages Growth stage; four kinds of endogenous hormones in leaves were higher than those in endogenous hormones.