INFLUENCE OF MANGANESE DEFICIENCY ON METAL ION UPTAKE, ANTIOXIDANT DEFENSE MECHANISM AND LIPID PEROXIDATION LEVELS IN MENTHA PIPERITA LEAVES


Candan N., Tarhan L.

ACTA BIOLOGICA CRACOVIENSIA SERIES BOTANICA, cilt.53, sa.1, ss.20-25, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 1
  • Basım Tarihi: 2011
  • Doi Numarası: 10.2478/v10182-011-0003-6
  • Dergi Adı: ACTA BIOLOGICA CRACOVIENSIA SERIES BOTANICA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.20-25
  • Anahtar Kelimeler: Antioxidant defense system, lipid peroxidation, Mentha piperita, Mn2+ deficiency, metal uptake, SUPEROXIDE-DISMUTASE, OXIDATIVE STRESS, PHOSPHORUS, SENESCENCE, TOLERANCE, TOXICITY, IRON
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

We investigated the antioxidant defense mechanism, metal uptake and lipid peroxidation (LPO) levels at different leaf positions in Mentha piperita L. grown in Mn2+-deficient and control conditions. Under manganese deficiency the activity of superoxide dismutase (SOD), catalase (CAT) and guaiacol peroxidase (GuaPOX) and the content of ascorbate, chlorophyll, and carotenoid under Mn2+ deficiency were significantly lower than in the control for all leaf positions. SOD activity correlated positively with Mn2+ uptake. Fe2+ uptake was inhibited by Mn2+ deficiency. During early stages of Mn2+ deficiency, M. piperita leaves showed relatively more antioxidant activity and lower LPO. Towards the final stages of the treatment period, comparatively lower SOD, CAT and GuaPOX activity and higher LPO levels accelerated the senescence process.