Calmodulin antagonist trifluoperizine(TFP)and Ca2+ chelator EGTA both inhibited the effects induced by ethylene to a certain extent. It is concluded that Ca2+and CaM participate in the reaction of exogenous ethylene.

• 钙离子专一性螯合剂EGTA和钙调素拮抗剂TFP均在一定程度上抑制了乙烯诱导的上述反应,表明细胞内Ca2+与CaM参与了乙烯反应。