Abstract
Freshwater clams (Anodonta cygnea) were exposed to Cd2+ (25 μg/L) or to Cd2+ (25 μg/L) plus Zn2+ (2.5 mg/L). In the presence of zinc, uptake of cadmium in whole clam was halved. In organs such as the gills, mantle, and labial palps a still larger reduction of Cd accumulation occurred. By contrast, accumulation in midgut gland and kidney was hardly affected by the presence of zinc. It is shown that in the gills zinc competes with cadmium for metal binding sites both within the particulate fraction and the high-molecular weight fraction of the cytosol. Zinc probably did not induce an enlarged synthesis of specific metal-binding, metallothionein-like, proteins. In conclusion, zinc exerts antagonistic effects on uptake of cadmium by gills, and accelerates Cd transport from the gills towards the internal organs.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ahsanullah M, Negilski DS, Mobley MC (1981) Toxicity of zinc, cadmium and copper to the shrimpCallianassa australiensis. III. Accumulation of metais. Mar Biol 64:311–316
Bryan GW, Hummerstone LG (1973) Adaptation of the polychaeteNereis diversicolor to estuarine sediments containing high concentrations of zinc and cadmium. J Mar Biol Assoc U.K. 53:839–857
Carpené E, George SG (1981) Absorption of cadmium by gills ofMytilus edulis (L.). Molec Physiol 1:23–34
Eisler R, Gardner GR (1973) Acute toxicology to an estuarine teleost of mixtures of cadmium, copper and zinc salts, J Fish Biol 5:131–142
Fowler SW, Benayoun G (1974) Experimental studies on cadmium flux through marine biota. In: Comparative studies of food and environmental contamination IAEA-SM 175/10. International Atomic Energy Agency, Vienna, pp 159–178
Hemelraad J, Holwerda DA, Zandee DI (1986a) Cadmium kinetics in freshwater clams. I. The pattern of cadmium accumulation inAnodonta cygnea. Arch Environ Contam Toxicol 15:1–7
Hemelraad J, Holwerda DA, Teerds KJ, Herwig HJ, Zandee DI (1986b) Cadmium kinetics in freshwater clams. II. A comparative study of cadmium uptake and cellular distribution in the UnionidaeAnodonta cygnea, Anodonta anatina andUnio pictorum. Arch Environ Contam Toxicol 15:9–21
Jackim E, Morrison G, Steele R (1977) Effects of environmental factors on radiocadmium uptake by four species of marine bivalves. Mar Biol 40:303–308
Lamphere DN, Dorn CR, Reddy CS, Meyer AW (1984) Reduced cadmium body burden in cadmium-exposed calves fed supplemental zinc. Environ Res 33:119–129
McLeese DW, Ray S (1984) Uptake and excretion of cadmium, CdEDTA and zinc byMacoma balthica. Bull Environ Contam Toxicol 32:85–92
Phillips DJH (1976) The common mussleMytilus edulis as an indicator of pollultion by zinc, cadmium, lead and copper. I. Effects of environmental variables on uptake of metals. Mar Biol 38:59–69
Ray S, McLeese DW, Pezzack D (1979) Chelation and interelemental effects on the bioaccumulation of heavy metals by marine invertebrates. In: Proc Int Conf, Management and Control of Heavy Metals in the Environment. CEP Consultants, Edinburg, pp 35–38
Ray S, McLeese DW, Waiwood BA, Pezzack D (1980) Disposition of cadmium and zinc inPandalus montagui. Arch Environ Contam Toxicol 9:675–681
RIWA: Rijncommissie Waterleidingbedrijven (1983) Annual report of the cooperating Rhine and Meuse Water Supply Companies in the Netherlands and Belgium, Amsterdam (in Dutch)
Webb M (1972) Protection by zinc against toxicity. Biochem Pharmacol 21:2767–2771
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hemelraad, J., Kleinveld, H.A., de Roos, A.M. et al. Cadmium kinetics in freshwater clams. III. Effects of zinc on uptake and distribution of cadmium inAnodonta cygnea . Arch. Environ. Contam. Toxicol. 16, 95–101 (1987). https://doi.org/10.1007/BF01055364
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01055364