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Pregled bibliografske jedinice broj: 202015

Influence of NaCl and mannitol on peroxidase activity and lipid peroxidation in Centaurea ragusina L. roots and shoots


Radić, Sandra; Radić-Stojković, Marijana; Pevalek-Kozlina, Branka
Influence of NaCl and mannitol on peroxidase activity and lipid peroxidation in Centaurea ragusina L. roots and shoots // Journal of Plant Physiology, 163 (2006), 12; 1284-1292 (međunarodna recenzija, članak, znanstveni)


Naslov
Influence of NaCl and mannitol on peroxidase activity and lipid peroxidation in Centaurea ragusina L. roots and shoots

Autori
Radić, Sandra ; Radić-Stojković, Marijana ; Pevalek-Kozlina, Branka

Izvornik
Journal of Plant Physiology (0176-1617) 163 (2006), 12; 1284-1292

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Centaurea ragusina; iso-peroxidases; lipid peroxidation; oxidative stress; salinity

Sažetak
Centaurea ragusina L. is a Croatian endemic plant species growing on cliffs above the Adriatic sea, but there is no information about its physiological behavior or stress tolerance. To investigate the response of C. ragusina plants to salinity and drought, we have analysed soluble peroxidase (POD ; EC 1.11.1.7) activity, anionic isoperoxidase pattern, levels of MDA and hydrogen peroxide in C. ragusina plants exposed to these stresses. Rooted plantlets grown on MS &frac12 ; nutrient medium supplemented with mannitol (300 mM) and different concentrations of NaCl (150, 300, 450 or 600 mM) were harvested after 5, 10 and 15 days. Both osmotic treatments significantly increased MDA and hydrogen peroxide contents in C. ragusina shoots after 10 days of stress, while in roots these parameters showed no significant difference compared to control in overall. Peroxidase activity of salt-stressed plants changed with respect to different saline treatments and plant organs - in shoots enzymatic activity markedly increased in response to lower saline treatments, especially 300 mM NaCl ; otherwise it was similar as in control plants while in roots of plants grown under 450 mM and 600 mM NaCl it significantly decreased. Drought increased POD activity of both shoots and roots especially after 10 days of experiment. Generally, change in the peroxidase isoenzyme pattern of treated plants was in accordance with the activity change in time. Several peroxidase isoforms (P3, P4 and P9) were specifically induced by salinity and drought.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija



POVEZANOST RADA


Projekt / tema
0119155

Ustanove
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Uključenost u ostale bibliografske baze podataka:


  • Biological Abstracts