DDC was an effective inhibitor of the SOD at a concentration of 7>5 mmol/L, it markedly inhibited the SOD activity in soybean seedlings, and thus affected normal growth of seedlings and intensified the oxygen damage.

• 相反,DDC是SOD的有效抑制剂,当它的浓度大于5 mmol/L时,显著抑制大豆幼苗SOD活性,增加了体内O_2~+的积累,影响了幼苗的正常生长以及幼苗氧伤害的加剧。