Photosynthetica 2018, 56(3):750-762 | DOI: 10.1007/s11099-017-0727-y

Ameliorative role of salicylic acid and spermidine in the presence of excess salt in Lycopersicon esculentum

Q. Fariduddin1,*, T. A. Khan1, M. Yusuf1, S. T. Aafaqee1, R. R. A. E. Khalil2
1 Plant Physiology and Biochemistry Section, Department of Botany, Aligarh Muslim University, Aligarh, India
2 Department of Botany, Faculty of Science, Benha University, Benha, Egypt

Salicylic acid (SA) and polyamines (PA) are widely used to overcome various abiotic stresses including salt (NaCl) stress in plants. In the present investigation, co-application efficacies of SA and PA on the salt stress (200 mM NaCl) were evaluated in Lycopersicon esculentum. After transplantation, at 10-d stage, seedlings were exposed to NaCl through soil and then allowed to grow till 30-d stage. At 31-d stage of growth, plants were sprayed with double distilled water (control) or spermidine (1.0 mM) and/or SA (10-5 M). The salt stress significantly reduced the growth, gas-exchange parameters, but increased antioxidant enzymes and proline content in the leaves. Moreover, the loss caused by salt stress was successfully restored by the following treatment of spermidine and SA.

Additional key words: abiotic stress; antioxidant; photosynthesis; proline

Received: October 5, 2016; Accepted: March 6, 2017; Prepublished online: September 1, 2018; Published: August 1, 2018  Show citation

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Fariduddin, Q., Khan, T.A., Yusuf, M., Aafaqee, S.T., & Khalil, R.R.A.E. (2018). Ameliorative role of salicylic acid and spermidine in the presence of excess salt in Lycopersicon esculentum. Photosynthetica, 56(3), 750-762. doi: 10.1007/s11099-017-0727-y
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