The root tip(0-10 mm root segment) cell wall PME activity in Fu-84 was enhanced after 6h Al treatment but decreased after 24 h Al treatment.

• 铝处理下；西矮麦1号根尖果胶甲酯酶(PME)活性无明显变化；但辐84系0~10 mm根段PME活性在铝处理6 h后提高；处理24 h则略有下降.