Esterase isozyme upon isoelectric focusing eletrophores demonstrated that the high levels of total esterase activity in ABM R was due to the increased activities of E7, E13 and E15 isozymes.

• 从酯酶同工酶等电聚焦电泳得出 ,ABM- R种群的 E7、E13和 E15同工酶活力显著提高是导致 ABM- R种群酯酶活力提高的主要原因。