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dc.contributor.authorAltaf, M. A.
dc.contributor.authorShahid, R.
dc.contributor.authorRen, M. X.
dc.contributor.authorNaz, S.
dc.contributor.authorAltaf, M. M.
dc.contributor.authorQadir, A.
dc.contributor.authorAnwar, M.
dc.contributor.authorShakoor, Awais
dc.contributor.authorHayat, F.
dc.description.abstractMelatonin (N-acetyl-5-methoxytryptamine) is an essential molecule which regulates plant growth and development and alleviates the damaging effects of abiotic stresses. To evaluate the important functions of melatonin in response to salinity stress, the effects of exogenous melatonin on the antioxidant system and growth of tomato (Solanum lycopersicum L.) under 150 mM NaCl stress were investigated. The application of 100 μM melatonin compensated the growth inhibition caused by salt-stress. Melatonin treated seedlings had an increased fresh and dry masses of shoots and roots. The application of 1 - 200 µM melatonin notably enhanced the relative chlorophyll content (SPAD index), root characteristics, and gas exchange in tomato seedlings subjected to salt stress compared to seedlings treated with salt stress alone. Moreover, melatonin pretreatment minimized accumulation of reactive oxygen species and improved activities of antioxidative enzymes including catalase, superoxide dismutase, glutathione reductase, and ascorbate peroxidase.ca_ES
dc.description.sponsorshipWe would like to thank Wang Zhiwei from the College of Horticulture and Landscape Architecture, Hainan University, Haikou for his kind guidance and laboratory equipment. This program was financially supported by the Innovative Team Program of Hainan Natural Science Foundation (2018CXTD334) and the National Natural Science Foundation of China (41871041).ca_ES
dc.publisherInstitute of Experimental Botany, Czech Academy of Sciencesca_ES
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofBiologia plantarum, 2020, vol. 64, p. 604-615ca_ES
dc.rightscc-by-nc-nd, (c) Institute of Experimental Botany, Czech Academy of Sciences, 2020ca_ES
dc.subjectAbiotic stressesca_ES
dc.subjectAntioxidative enzymesca_ES
dc.subjectOxidative damageca_ES
dc.titleExogenous melatonin enhances salt stress tolerance in tomato seedlingsca_ES

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cc-by-nc-nd, (c) Institute of Experimental Botany, Czech Academy of Sciences, 2020
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