Effect of Cadmium, Copper, and Lead on Different Enzyme Activities in a Native Forest Soil

Autor:	D. Effron, A. M. de la Horra, R. M. Palma, R. L. Defrieri, V. Fontanive
Rok vydání:	2004
Předmět:	Cadmium biology Urease Acid phosphatase Soil Science chemistry.chemical_element Mineralogy Contamination Copper Enzyme assay chemistry Environmental chemistry Soil water biology.protein Agronomy and Crop Science Incubation
Zdroj:	Communications in Soil Science and Plant Analysis. 35:1309-1321
ISSN:	1532-2416 0010-3624
DOI:	10.1081/css-120037548
Popis:	Heavy metals contamination has been reported to affect enzymatic activities in soils. The objectives of this work were (i) to study the effect of cadmium [Cd(II)], copper [Cu(II)], and lead [Pb(II)] at different doses and different incubation times on arylsulphatase, s-glucosidase, acid phosphatase, protease, and urease activities in a noncontaminated native forest soil and (ii) to analyze the potential use of enzyme activity to detect contamination in soils by the studied metals. The study site was located in a subtropical forest of Argentine. A soil sample representative from the studied site was placed in plastic containers and contaminated with solutions containing Cd (20, 100, 200, and 500 mg kg−1 soil), Cu (50, 250, 500, and 2500 mg kg−1 soil), and Pb (40, 200, 400, and 1000 mg kg−1 soil) in a laboratory experiment. The metal influence on the enzymatic activity was studied at different incubation times (30, 60, 90, and 120 days). Results showed that, the metals studied inhibited the arylsup...
Databáze:	OpenAIRE
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