EFFECT OF POLYAMINES PRETREATMENTS ON THE ACTIVITY OF ANTIOXIDANT ENZYMES IN SALT STRESSED WHEAT PLANTS

Document Type : Original Article

Authors

Botany and Microbiology Departments, Faculty of Science, Al-Azhar University, Cairo, (Girls Branch)

Abstract

A pot experiment was conducted to study the effect of polyamines pretreatments, putrescine (2, 4, 6, 8 &10  mM) or spermine (  2,4, 6,8 & 10 mM),on the activity of  catalas, peroxidase, and polyphenol oxidase in salt stressed wheat plants. NaCl (0.0, 6000, 8000,10000 ppm) led to a gradual increase in the activity of catalase, peroxidase and polyphenol oxidase in wheat plants. On the other hand, activity of antioxidant enzymes was decreased  by the application of different polyamines treatments, especially with higher levels, in plants grown under salt stress (6000, 8000 and 10000 ppm NaCl)