Detoxication of metals by marine bivalves: An ultrastructural study of the compartmentation of copper and zinc in the oyster Ostrea edulis

George, Stephen; Pirie, B. J. S.; Cheyne, A. R.; Coombs, Thomas L.; Grant, P. T.

doi:10.1007/bf00390550

Cited by 207 publications

(89 citation statements)

References 18 publications

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“…Our data are consistent with the finding that accumulation of Zn occurs primarily in bivalve soft tissues, where it is usually associated with proteins or membrane-bound vesicles in the hemolymph [43,44]. Zinc deposition in the shell is considered to be insignificant [45].…”

Section: Field Exposures To Heavy Metalssupporting

confidence: 94%

DNA strand breakage in freshwater mussels (Anodonta grandis) exposed to lead in the laboratory and field

Black

Ferrell

Horning

et al. 1996

Enviro Toxic and Chemistry

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Abstract-The sensitivity of a freshwater mussel, Anodonta grandis, to DNA damage following lead (Pb) exposure was tested in laboratory and field experiments. Laboratory exposures were conducted for 4 weeks at the following Pb concentrations: 0 (controls), 50, 500, and 5000 g/L. Mussels were also collected from a strip-mine pond contaminated with trace amounts of lead, cadmium (Cd), and zinc (Zn). Significant DNA strand breakage was observed in foot tissue from mussels exposed in the laboratory to the lowest Pb concentration (50 g/L). No evidence of strand breakage was observed in any of the analyzed tissues from the mussels exposed to higher Pb concentrations (500 and 5000 g/L) or from the chronically exposed mussels collected from the strip-mine pond. These data suggest a threshold effect for DNA damage and repair resulting from low-level Pb exposure, whereby repair of DNA strand breaks may occur only if a certain body burden or exposure duration has been achieved.

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Section: Field Exposures To Heavy Metalssupporting

confidence: 94%

DNA strand breakage in freshwater mussels (Anodonta grandis) exposed to lead in the laboratory and field

Black

Ferrell

Horning

et al. 1996

Enviro Toxic and Chemistry

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“…The capacity within the oysters to accumulate higher concentrations of zinc and (copper) in oysters is primarily related to the oysters' high pumping rate. George et al (1978) report that based on observations of copper in the oyster Ostrea edulis relative to mussels, may be attributable to bonding to sulphur within haemocytes. Such haemocytes are typically present in all oysters (Roesijadi, 1996).…”

Section: Overall Observations On Metals Concentrations Between T ¼ 0 mentioning

confidence: 99%

Utilising caging techniques to investigate metal assimilation in Nucella lapillus, Mytilus edulis and Crassostrea gigas at three Irish coastal locations

Giltrap

Macken²,

Davoren³

et al. 2013

Estuarine, Coastal and Shelf Science

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.: Utilising caging techniques to investigate metal assimilation in Nucella lapillus, Mytilus edulis and Crassostrea gigas at three Irish coastal locations. Estuarine, Coastal and Shelf Science, vol. 132, 1 November 2013, p. 77-86. doi:10.1016/j.ecss.2011 Pollution by metals has been of increasing concern for a number of decades but at present, the mechanism of metal accumulation in sentinel species is not fully understood and further studies are required for environmental risk assessment of metals in aquatic environments. The use of caging techniques has proven to be useful for assessment of water quality in coastal and estuarine environments. This study investigates the application of caging techniques for monitoring uptake of 20 elements [Li, Na, Mg, Al, P, K, Ca, V, Cr, Mn, Fe, Ni, Co, Cu, As, Sb, Pb, Hg, Cd and Zn] in three marine species namely Nucella lapillus, Mytilus edulis and Crassostrea gigas. Stable isotopes were used to determine predatory effects and also used for modelling metal uptake in test species and to track nutrient assimilation. Metal levels were monitored at three different coastal locations, namely Dublin Bay, Dunmore East and Omey Island over 18 weeks. Significant differences in concentrations of Mn, Co and Zn between mussels and oysters were found. Correlations between cadmium levels in N. lapillus and d 13 C and d 15N suggest dietary influences in Cd uptake. Levels of Zn were highest in C. gigas compared to the other two species and levels of Zn were most elevated at the Dunmore East site. Copper levels were more elevated in all test species at both Dublin Bay and Dunmore East. Mercury was raised in all species at Dunmore East compared to the other two sites. Biotic accumulation of metals in the test species demonstrates that caging techniques can provide a valid tool for biomonitoring in metal impacted areas.

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“…The precipitates would become endocytosed by haemocytes and, after concentration in granules, exported out of the body. One common export pathway of granules in bivalves is vla the hepatopancreas and the alimentary tract (Stauber 1950, George et al 1978; another frequently used mechanism, excreting particularly copper precipitates, is via the kidney (Robinson et al 1985).…”

Section: Ica E E L S Spectra Frommentioning

confidence: 99%

Sulphide-induced metal precipitation in the mantle edge of Macoma balthica (Bivalvia, Tellinidae) - a means of detoxification

Windoffer¹,

Jahn²,

Meyberg³

et al. 1999

Mar. Ecol. Prog. Ser.

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The blackening of tissues or mucus of benthic animals from sulphidic environments is a remarkable phenomenon whose ecological interpretation is disputed. In the Baltic clam Macoma balthica the mantle edge turned black after sulphide exposure owing to numerous precipitates in the extracellular matrix underneath the epidermal cells. In the apical parts of these cells, similar precipitates were found, albeit in lower abundance. Elemental analyses showed that copper (214.7 pg g-' ww [wet weight]) and sulphur (1328.6 pg g.' ww) were the main components, with iron (311.2 pg g-' ww) and zinc (112.7 pg g-' \W) in lower concentration. Apparently, these precipitates become phagocytosed by amoebocytes and concentrated in haemocytic granules. This is interpreted as a pathway of removal from the mantle edge. On the basis of calculated diffusion rates (DHS-= 1.9 X cm2 S-'). there is a sulphide influx of 61 nmol h-' into the body of M. balthica. Even under conservative assumptions, this would lead to the binding of all the copper present in about 30 min. It is concluded that the process of sulphide precipitation can represent a temporarily effective pathway attenuating sulphide toxification.

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Detoxication of metals by marine bivalves: An ultrastructural study of the compartmentation of copper and zinc in the oyster Ostrea edulis

Cited by 207 publications

References 18 publications

DNA strand breakage in freshwater mussels (Anodonta grandis) exposed to lead in the laboratory and field

DNA strand breakage in freshwater mussels (Anodonta grandis) exposed to lead in the laboratory and field

Utilising caging techniques to investigate metal assimilation in Nucella lapillus, Mytilus edulis and Crassostrea gigas at three Irish coastal locations

Sulphide-induced metal precipitation in the mantle edge of Macoma balthica (Bivalvia, Tellinidae) - a means of detoxification

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