Silicon increases boron tolerance and reduces oxidative damage of wheat grown in soil with excess boron

Gunes A., Inal A., Bagci E., Coban S., Sahin O.

Biologia Plantarum, cilt.51, sa.3, ss.571-574, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 3
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s10535-007-0125-6
  • Dergi Adı: Biologia Plantarum
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.571-574
  • Anahtar Kelimeler: antioxidant enzymes, B toxicity, lipid peroxidation, lipoxygenase, proline, Triticum aestivum, HYDROGEN-PEROXIDE, MEMBRANE-PERMEABILITY, LIPID-PEROXIDATION, SALINITY STRESS, ENZYME-ACTIVITY, ANTIOXIDANT, RESPONSES, BARLEY, PLANTS, RESISTANCE
  • Ankara Üniversitesi Adresli: Evet

Özet

The effect of silicon on the growth, boron concentrations, malondialdehyde (MDA) content, lipoxygenase (LOX) activity, proline (PRO) and H 2O2 accumulation, and the activities of major antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX)] and non-enzymatic antioxidants (AA) of wheat grown in soil originally with toxic B concentrations were investigated. Applied of 5.0 and 10.0 mM Si to the B toxic soil significantly increased Si concentration of the wheat and counteracted the deleterious effects of B on shoot growth. The contents of PRO, H2O2, MDA, and LOX activity of wheat grown in B toxic soil were significantly reduced by Si treatments. Compared with control plants, the activities of SOD, CAT, APX and content of AA were decreased by applied Si. Based on the present work, it can be concluded that Si alleviates B toxicity of wheat by preventing oxidative membrane damage and also translocation of B from root to shoot and/or soil to plant. © 2007 Institute of Experimental Botany, ASCR.