CaCl_2溶液对小麦苗超氧物歧化酶的影响

The Effect ofCaCl_2Solution on Superoxide Dismutase of WheatSeedlings

ＣａＣｌ＿２溶液能提高小麦苗的ＳＯＤ活性，尤其以２０ｍｇ／Ｌ、５０ｍｇ／Ｌ溶液最为有效．最佳处理次数与所用浓度有关，较低浓度溶液（２０ｍｇ／Ｌ）处理５次，较高浓度溶液（５０ｍｇ／Ｌ、１００ｍｇ／Ｌ）处理１次．浇根和喷叶一样也能提高ＳＯＤ活性。ＣａＣｌ＿２溶液喷洒麦苗使ＳＯＤ同工酶出现新的谱带。

CaCl_2 can increase the SOD activity of wheat seedlings.The solution of20mg/Land 50mg/L are the best concentrations used.The treating frequency depends on theconcentration used.For gaining the best result,wheat seedlings must be treated five timeswith eolution of lower concentration(20mg/L)or treated only once with solution of higherconcentration(50mg/L or 100mg/L).Either pouring on the roots or spraying on the leaveswith the solution is equally useful for increasing the SOD activity,After the leaves aresprayed with CaCl_2,the SOD isozymes display a new band.