The interaction of Pb and Ca assimilation in Helix aspersa with wounded shells

• Autorzy: Beeby A.
• Języki publikacji: EN

Abstrakty

EN

The interaction of lead and calcium assimilation was examined in the soft tissues, shell and faeces of the soft tissues, shell and faeces of the garden snail an induced calcium stress, shell wounding. This is known to mobilise Ca both from the shell and soft tissues, conditions which are likely to affect Pb assimilation by each component Following wounding, snails were fed an artificial diet for 7 days with some combination of Pb and/or Ca and Mg in a 22 factorial experiment Dietary Pb raised the concentration of this metal in all tissue components, though the scale of the increase was the same in both wounded and unwoun- ded snails. The smallest increase was in the shell. Ca and Mg levels in the hepatopancreas remain unchanged by the dietary levels of any treatment, but were raised in the rest of the soft tissues. Significantly, the high Pb diet is almost equally effective as wounding in lowering the Ca in this component. Injuring the shell had little effect on the uptake of Pb by the snails.

Słowa kluczowe

EN

feces; Helix aspersa; calcium; shell; interaction; wounded shell; snail; lead; tissue; toxic metal

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 1993
• Tom: 02
• Numer: 3
• Opis fizyczny: p.9-13,fig.,ref.

Twórcy

autor

Beeby A.

• School of Applied Science South Bank University, London, U.K.

Bibliografia

• ABOLINS-KROGIS A. The histochemistry of the hepato¬pancreas of Helix pomatia (L.) in relation to the regenera¬tion of the shell. Ark. Zool. 13, 159 - 202.1960.
• ABOLINS-KROGUS A. Shell regeneration in Helix pomatia with special reference to the elementary calcifying particles. Symp. Zool. Soc. Lond. 22, 75 —92.1968.
• ABOLINS-KROGIS A. The effect of carbonic anhydrase, urea and urease on the calcium carbonate deposition in the shell repair membrane of Helix pomatia L. Cell Tissue Res. 244, 65-660. 1986.
• BEEBY A.N. Toxic metal uptake and essential metal regulation in terrestrial invertebrates: a review. In ’Metal Ecotoxicology, Concepts and Applications’ (Eds. Newman, M.C. and Mclnotsh, A.W.) 65—89. Lewis Publishers Inc. Boca Raton, USA. 1991.
• BEEBY AN, RICHMOND L. Calcium metabolism in two populations of Helix aspersa on a high lead diet. Arch. Environ. Contam. Toxicol. 17, 507—511.1988.
• BEEBY A.N, RICHMOND L. The shell as a site of lead deposition in Helix aspersa. Arch. Environ. Contam. Toxi- coL 18, 623-628.1989.
• BURTON RF. The storage of calcium and magnesium phosphates and of calcite in the digestive glands of the Pulmonata (Gastropoda). Comp. Biochem. Physiol. 43A, 655 - 663.1972.
• CARRIKER MR, SWANN CP, EWART J.W. An exploratory study with the proton microprobe of the ontogenetic distribution of 16 elements in the shell of living oysters (Craccostrea virginica). Mar. Biol. 69, 235 — 246. 1982.
• ChAN W, SALEUDDIN A. S. M. Evidence that Otala lactea (Muller) utilizes calcium from the shell. Proc. Malac. Soc. land. 41,195 -200.1974.
• DALLINGER R, WIESER W. Patterns of accumulation, distribution and liberation of Zn, Cu, Cd and Pb in different organs of the land snail Hellix pomatia L. Comp. Biochem. Physiol. 79C, 117-124 1984.
• FOURNIE J, CHETAIL M. Calcium dynamics in land gastropoda. Amer. Zool. 24, 857 — 870.1984.
• IRELAND M P. Effect of chronic and acute lead treatment in the slug Arion ater on calcium and delta- -aminolaevulinic acid dehydratase activity. Comp. Biochem. Physiol. 79C, 287 - 290.1984
• IRELAND M. P. Studies on the effects of dietary beryllium at two different calcium concentrations in Achatina fulica (Pulmonata). Comp. Biochem. Physiol. 83C, 435—438. 1986a.
• IRELAND M. P. Effects of wound-healing on zinc distri¬bution and alkaline phosphatase activity of Helix aspersa (Gastropoda: Pulmonata). J. Moll. Stud. 52, 169 — 173. 1986b.
• IRELAND M.P. A comparative study of the uptake and distribution of silver in a slug Arion ater and a snail Acha¬tina fulica. Comp. Biochem. Physiol. 90C, 189—194.1988.
• IREAND M. P, MARIGOMEZ I. The influence of dietary calcium on the tissue distribution of Cu, Zn, Mg, P and histological changes in the digestive gland cells of the snail Achatina fulica Bowdich. J. Moll. Stud. 58,157—168.1992.
• WAAGE L.E. Quantitative studies of calcium metabolism in Helix aspersa. J. Exp. Zool. 120, 311 — 342.1952.
• WARDLAW A.E. Practical statistics for experimental biologists. John Wiley, London, New York. 1989.
• WILBUR K.M., JODREY LH. Studies on shell formation. V. The inhibition of shell formation by carbonic anhydrase inhibitors. Biol. Bull. Mar. Biol. Lab. Woods Hole. 108, 359-365.1955.