Open AccessAntioxidant responses of peanut (Arachis hypogaea L.) seedlings to prolonged salt-induced stress
Author(s) -
Musa Kavas,
Oya Ercan Akça,
Ufuk Çelikkol Akçay,
Begüm Peksel,
Seçkin Eroğlu,
Hüseyin Avni Öktem,
Meral Yücel
Publication year - 2015
Publication title -
archives of biological sciences
Language(s) - English
Resource type - Journals
eISSN - 1821-4339
pISSN - 0354-4664
DOI - 10.2298/abs150407107k
Subject(s) - arachis hypogaea , proline , cultivar , salinity , antioxidant , glutathione reductase , horticulture , arachis , chemistry , glutathione , biology , peroxidase , botany , agronomy , enzyme , catalase , glutathione peroxidase , biochemistry , amino acid , ecology
In this study, the effects of long-term NaCl treatment were investigated in two cultivars of peanut designated as drought-resistant and drought-sensitive. Growth parameters, changes in the concentrations of MDA, H2O2 and proline, and the activities of antioxidant enzymes were determined under salinity stress. Growth parameters indicated the superiority of cv. Florispan to cv. Gazipaşa under milder salinity stress treatment. However, comparative analysis of the two cultivars showed that MDA, H2O2, ion leakage levels and photosystem II activities were not significantly different, except for the proline activity, which increased only in Florispan leaf tissues under 100 mM salt treatment. Among the processes that govern the tolerance in peanut tissues, proline level and the activity of glutathione reductase (GR) appeared to be only components that play an important part in salt stress protection
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