After domestication,the toxicity of Cu~(2+) decreased 10%,and the maximum decreasing percentage of Cd~(2+) inhibition was more than 40%,while the effect of Ni~(2+) transferred to be in favor of ETS activity with the optimal concentration of 70 mg/L.

• 驯化后；Cu2+毒性的降幅约为10%25；Cd2+毒性的最大降幅超过40%25；Ni2+对污泥ETS活性的作用则基本表现为促进；最佳促进浓度约为70 mg/L.