ANTIOXIDANT RESPONSES OF PEANUT (ARACHIS HYPOGAEA L.) SEEDLINGS TO PROLONGED SALT-INDUCED STRESS

KAVAS M., Akca O. E., Akcay U. C., Peksel B., Eroglu S., ÖKTEM H. A., ...Daha Fazla

ARCHIVES OF BIOLOGICAL SCIENCES, cilt.67, sa.4, ss.1303-1312, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.2298/abs150407107k
  • Dergi Adı: ARCHIVES OF BIOLOGICAL SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1303-1312
  • Anahtar Kelimeler: Antioxidant enzymes, lipid peroxidation, oxidative stress, proline, salt, OXIDATIVE STRESS, TOLERANCE, SALINITY, PROLINE, PLANTS, ACCUMULATION, MECHANISMS, SODIUM, GROWTH
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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. Gazipasa 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.