Influence of selenium on growth, lipid peroxidation and antioxidative enzyme activity in melon (Cucumis melo L.) seedlings under salt stress

• Autorzy: Hu K. L. , Zhang L. , Wang J. T. , You Y.
• Języki publikacji: EN

Abstrakty

EN

The objective of this study was to investigate the effect of exogenous selenium (Se) supply (0, 2, 4, 8, 16 μM) on the growth, lipid peroxidation and antioxidative enzyme activity of 100 mM NaCl-stressed melon (Cucumis melo L.) seedlings. Salt stress significantly reduced the growth attributes including stem length, stem diameter, dry weight and increased antioxidative enzyme activity [superoxide dismutase (SOD), peroxidase (POD), catalase (CAT)]. Moreover, the plant exhibited a significant increase in electrolyte leakage and malondialdehyde (MDA) content under NaCl stress. Se supplementation not only improved the growth parameters but also successfully ameliorated the adverse effect caused by salt stress in melon seedlings. However, the mitigation of NaCl-stressed seedlings was different depending on the Se concentration. At lower concentrations (2–8 μM), Se improved growth and acted as antioxidant by inhibiting lipid peroxidation and increasing in SOD and POD enzymes activity under salt stress. At higher concentrations (16 μM), Se exerted diminished beneficial effects on growth. Whereas CAT activity was enhanced. The result indicated that Se supplementation had a positive physiological effect on the growth and development of salt-stressed melon seedlings.

Słowa kluczowe

EN

selenium; plant growth; lipid peroxidation; antioxidative enzyme; enzyme activity; melon; Cucumis melo; seedling; salt stress

• Wydawca: -
• Czasopismo: Acta Societatis Botanicorum Poloniae
• Rocznik: 2013
• Tom: 82
• Numer: 3
• Opis fizyczny: p.193-197,fig.,ref.

Twórcy

autor

Hu K. L.

• Department of Horticulture, Anhui Agriculture University, 130 West Chang jiang Road, HeFei, Anhui 230036, China

autor

Zhang L.

• Department of Horticulture, Anhui Agriculture University, 130 West Chang jiang Road, HeFei, Anhui 230036, China

autor

Wang J. T.

• China Tobacco Anhui Industrial Co., LTD HeFei, Anhui 230088, China

autor

You Y.

• Department of Horticulture, Anhui Agriculture University, 130 West Chang jiang Road, HeFei, Anhui 230036, China

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Identyfikatory

DOI

10.5586/asbp.2013.023