haichowensis was lower than that of C. communis. Both the (uncoupler) of oxidative phosphorylation DNP and P-type ATPase inhibitor Na_3VO_4 could inhibit Cu uptake, which showed properly initiative Cu uptake in the two plants.

• 解偶联剂2,4 二硝基苯酚(DNP)和P-型ATP酶抑制剂钒酸钠(Na3VO4)对海州香薷和鸭跖草铜吸收均有一定的抑制作用,说明两种植物对铜可能存在主动吸收。