在重金属胁迫下，植物根系分泌物种类和量会发生显著变化。
Root exudates markedly altered in species and quantity under heavy metal stress.
同时还发现CAT和POD对重金属胁迫较SOD更为敏感。
It was also found that CAT and POD was more sensitive than SOD.
因此，研究农作物在重金属胁迫下生长及生理的变化具有深远的意义。
Therefore, the research of crops growth and the physiological changes under heavy metal stress has profound effect.
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