Response of the pea roots defense systems to the two-element combinations of metals (Cu, Zn, Cd, Pb). | Zendy

Arleta Małecka | Zendy; Aneta Piechalak | Zendy; Barbara Zielińska | Zendy; Agnieszka Kutrowska | Zendy; Barbara Tomaszewska | Zendy

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Response of the pea roots defense systems to the two-element combinations of metals (Cu, Zn, Cd, Pb).

Author(s) -

Arleta Małecka,

Aneta Piechalak,

Barbara Zielińska,

Agnieszka Kutrowska,

Barbara Tomaszewska

Publication year - 2014

Publication title -

acta biochimica polonica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.452

H-Index - 78

eISSN - 1734-154X

pISSN - 0001-527X

DOI - 10.18388/abp.2014_1918

Subject(s) - catalase , reactive oxygen species , chemistry , malondialdehyde , peroxidase , glutathione reductase , oxidative stress , trace element , biochemistry , enzyme , superoxide dismutase , metal , antioxidant , glutathione peroxidase , organic chemistry

The presence of the single metals (Cd, Pb, Cu, Zn) induces ROS (reactive oxygen species) production and causes oxidative stress in plants. While applied in two-element combinations, trace metals impact organisms in a more complex way. To assess the resultant effect we treated the pea grown hydroponically with the trace metals in variants: CuPb, CuCd, CuZn, PbCd, ZnPb, ZnCd in concentrations of 25 µM for each metal ion. Abiotic stress inhibited root elongation growth, decreased biomass production, induced changes in root colour and morphology. It changed rate of ROS production, malondialdehyde content, increased activity and altered gene expression of defence enzymes (superoxide dysmutase, catalase, ascorbate peroxidase, glutathione reductase, γ-glutamylcysteine synthetase).

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