本研究以麻疯树为材料,设置6个AlCl3处理浓度(0、25、50、100、200、400μmol/L)和3个时间梯度(7、14和21d),研究了铝胁迫对麻疯树幼苗叶片抗氧化系统的影响.结果表明,从Al3+处理浓度来看,蛋白质含量随着Al3+浓度的增加呈现出先增加后降低再增加的趋势;可溶性糖含量随着Al3+浓度的增加呈现出先增加后降低的趋势;低浓度的Al3+处理时,麻疯树幼苗叶片Pro含量、MDA含量和POD活性变化不大,高浓度的Al3+处理时,麻疯树幼苗叶片Pro和MDA迅速积累,POD活性增强且都随着Al3+浓度的增加呈现出上升的趋势.从Al3+胁迫时间来看,蛋白质含量、可溶性糖含量、MDA含量和POD活性随着胁迫时间的增加而增加;而Pro含量随着胁迫时间的增加而降低.这些结果表明麻疯树幼苗叶片在铝毒逆境胁迫环境中具有一定的自我保护和修复能力.“,”Jatropha curcas was taken as the test material, 6 concentrations including 0, 25, 50, 100, 200 and 400 μmol/L AlCl3, plus 3 time gradients including 7, 14 and 21 d, were set to study the effects of Al3+ stress on the antioxidant system of Jatropha curcas L. seedling. The results showed that with the Al3+ treatment being applied, protein content increased frst, then decreased and fnally increased with the increase of Al3+ concentration; the soluble sugar content increased first and then decreased with the increase of Al3+ concentration. Under low concentration of Al3+ treatment, Pro content, MDA content and POD activity of Jatropha curcas L. seedling leaves changed a little, while under high concentration of Al3+ treatment, Pro and MDA content of Jatropha curcas L. seedling leaves rapidly accumulated, POD activity increased and they showed a trend of increase with the increase of Al3+ concentration; From the perspective of Al3+ stress time, protein content, soluble sugar content, MDA content and POD activity increased with stress time being prolonged, while Pro content decreased with stress time being prolonged. These results indicated that the leaves of Jatropha curcas L. seedlings had certain self-protection and remediation abilities under Al3+ stress.