Exogenous melatonin enhances salt stress tolerance in tomato seedlings
Data de publicació2020-09-01
Altaf, M. A.
Ren, M. X.
Altaf, M. M.
MetadadesMostra el registre d'unitat complet
Melatonin (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.
És part deBiologia plantarum, 2020, vol. 64, p. 604-615
Projectes de recerca europeus
Aquest document està subjecte a una llicència Creative Commons.cc-by-nc-nd, (c) Institute of Experimental Botany, Czech Academy of Sciences, 2020
Mostrant elements relacionats per títol, autor i matèria.
Editorial: Physiological, Molecular and Genetic Perspectives of Chilling Tolerance in Horticultural Crops Lara Ayala, Isabel; Drincovich, Maria F.; Beckles, Diane M.; Cao, Shifeng (Frontiers Media, 2020-12-10)Horticultural crops have high economic, and enrich our lives through their aesthetic and nutritional value. Many horticultural species originate from tropical regions and are sensitive to cold at every stage of their ...
Spermine facilitates recovery from drought but does not confer drought tolerance in transgenic rice plants expressing Datura stramonium S-adenosylmethionine decarboxylase Peremartí, Ariadna; Bassie Rene, Ludovic; Christou, Paul; Capell Capell, Teresa (Springer Verlag, 2009)Polyamines are known to play important roles in plant stress tolerance but it has been difficult to determine precise functions for each type of polyamine and their interrelationships. To dissect the roles of putrescine ...
Enhancing the carotenoid content of tomato fruit with pulsed electric field treatments: effects on respiratory activity and quality attribute González Casado, Sandra; Martín Belloso, Olga; Elez Martínez, Pedro; Soliva-Fortuny, Robert (Elsevier, 2018)Pulsed electric field (PEF) may be used to elicit the accumulation of carotenoids in plant tissues. The stress-adaptive response to PEF is dependent on the treatments conditions and could lead to undesirable effects on the ...