Epibrassinolide reverses the stress generated by combination of excess aluminum and salt in two wheat cultivars through altered proline metabolism and antioxidants

This study was conducted to unravel the EBL mediated changes on the enzymes of proline metabolism under combined stress of aluminum and salt through varied mode of application. The results of the study revealed that application of EBL through different mode significantly increased the activities of P5CS and delta-OAT, proline content, photosynthetic efficiency and various enzymes of antioxidant system whereas, these parameters were further accelerated in the plants exposed to combined stress of aluminum and salt followed by EBL treatment. These findings indicate that exogenous application of EBLmodified the activity of enzymes of prolinemetabolism and also scavenges the excess reactive oxygen species through improved activities of antioxidant enzymeswhich could have provided the ability to confer tolerance in wheat plants under combination of aluminum and salt stress. (C) 2017 Published by Elsevier B.V. on behalf of SAAB.