تقدير فعالية انزيم Catalase خارج الجسم الحي لبعض انواع الداتورة

الملخص EN

In this research we determined the catalase activity in D.innoxia &D.metal in vitro under salt stress (9,12)dc/m & determined the activity of these species grown in media supplied with 2,4- D,BA with concentration (2mg/L) for each one.

The results revealed that the enzyme activity decrease in callus of D.

metal 283.1 μkat/g with media of salt stress 9 dc/m .

Also it was 225.1 μkat/g with media of salt stress 12 dc/m ,while in callus of D.

innoxia it was 188.1 μkat/g in 9 dc/m & increase to more than 141.5μkat/g in 12 dc/m media .

the enzyme activity in callus of D.innoxia supplied with BA increase to 149.6 μkat/g, also which is higher than the enzyme activity in control for both species. Complete randomized design was used to analysis the results.