24-epibrassinolide and/or putrescine trigger physiological and biochemical responses for the salt stress mitigation in Cucumis sativus L.

• DOI: 10.1007/s11099-014-0052-7
• Publication Date: 2014-08-08T14:13:30Z
• Authors: Q. Fariduddin; B. A. Mir; M. Yusuf; A. Ahmad
• Keywords: Cucumis

Brassinosteroids (BRs) and polyamines, well-established growth regulators, play a key role in abiotic stress response plants. In the present study, we examined of 24-epibrassinolide (EBL, an active BR) and/or putrescine (Put) salt-induced cucumber. The 15-d-old plants were exposed to 100 mM NaCl they subsequently treated by exogenous EBL Put. salt reduced significantly plant gas-exchange parameters, increased proline content electrolyte leakage leaves. Toxic effects induced completely overcome combination Put treatments improved parameters NaCl-treated plants, such as shoot length, root fresh dry mass. Our data also indicated that applications upregulated activities antioxidant enzymes, catalase, peroxidase, superoxide dismutase under stress.