Antioxidative responses and proline level in leaves and roots of pea plants subjected to nickel stress

• Autorzy: Gajewska E , Sklodowska M.
• Języki publikacji: EN

Abstrakty

EN

The activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), glutathione S-transferase (GST) as well as proline content were studi ed in leaves and roots of14 day-old pea plants treated with NiSO4 (10, 100, 200 pM) for 1,3, 6 and 9 day s. Exposure of pea plants to nickel (Ni) resulted in the decrease in CuZnSOD as well as total SOD activities in both leaves and roots. The activity of APX in leaves of plants treated with 100 and 200 pM Ni increased following the 3rd day after metal application, while in roots at the end of the experiment the activity of this enzyme was significantly reduced. In both organs CAT activity generally did not change in response to Ni treatment. The activity of GST in plants exposed to high concentrations of Ni increased, more markedly in roots. In both leaves and roots after Ni application accumulation of free proline was observed, but in the case of leaves conceniraiion of this amino acid increased eariier and to a greater extent than in roots. The results indicate that stimulation of GST activity and accumulation of proline in the tissues rather than antioxidative enzymes are involved in response of pea plants to Ni stress.

Słowa kluczowe

EN

superoxide dismutase; pea plant; plant physiology; glutathione S-transferase; antioxidative response; proline level; plant stress; leaf; antioxidative enzyme; nickel stress; Pisum sativum

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2005
• Tom: 27
• Numer: 3B
• Opis fizyczny: p.329-339,fig.,ref.

Twórcy

autor

Gajewska E

• University of Lodz, Banacha 12/16, 90-237 Lodz, Poland

autor

Sklodowska M.

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