Cadmium accumulation and metallothionein synthesis in freshwater bivalves (Pyganodon grandis): relative influence of the metal exposure gradient versus limnological variability

Perceval, Olivier; Pinel‐Alloul, Bernadette; Méthot, Ginette; Couillard, Yves; Giguère, Anik; Campbell, Peter G. C.; Hare, Landis

doi:10.1016/s0269-7491(01)00282-2

Cited by 60 publications

(29 citation statements)

References 35 publications

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“…However, Cd and Pb are of serious concern and adequate control of their sources is paramount because of their negative impact on biotics and the ecosystem at large. Pb and Cd affect metallothionein, a cystine rich, low-molecularweight, metal-binding protein (Perceval et al, 2002) and hormonal activity in living organisms (Laflamme et al, 2000). Pb has caused anaemia, brain damage, anorexia, renal failure, mental deficiency, vomiting and even death in human (Bulut and Baysal, 2006;Low et al, 2001) even at trace levels lower than the observed concentration in this study.…”

Section: Assessment Of Individual Metal Contaminant and Transfer Factormentioning

confidence: 47%

Use of Siam weed biomarker in assessing heavy metal contaminations in traffic and solid waste polluted areas

Agunbiade¹,

Fawale

2009

Int. J. Environ. Sci. Technol.

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ABSTRACT:The ability of Chromolaena odorata to accumulate and serve as biomarker to lead and cadmium metals pollution load had been revealed by this study. Samples of soils and Siam weed were collected to assess impacts of solid waste disposal and traffic density on the environment. Composite sample were collected from a solid waste dumpsite, three traffic polluted areas with varying traffic density and a background site distant from traffic. Concentration of eight elements: cadmium, cobalt, chromium, copper, iron, nickel, lead and zinc were determined in soil and plant samples and correlated together. Accumulative factors like pollution load index, transfer factor, contamination factor, enrichment factor were calculated for the metals in both plants and soils and used as basis for interpreting the state of the environment and ability of C. odorata to accumulate metals. The accumulative factors of plants were generally greater than that of soil samples indicating increased accumulative capacity of the plant. The accumulations of lead and cadmium in C. odorata were remarkable with contamination factor 10.51 and 23.50, respectively and mean enrichment factors 3.52 and 6.93, respectively. Other metals had lower accumulative factors. The distribution of metals and calculated factors placed solid waste disposal site as the most polluted site while the trend observed in areas with traffic pollution depicts the ability of C. odorata to clean up metal pollution by accumulating them. It can therefore be suggested that solid waste disposal negatively affects the environment more than traffic pollution subject to the volume of traffic.

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Section: Assessment Of Individual Metal Contaminant and Transfer Factormentioning

confidence: 47%

Use of Siam weed biomarker in assessing heavy metal contaminations in traffic and solid waste polluted areas

Agunbiade¹,

Fawale

2009

Int. J. Environ. Sci. Technol.

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“…Given that adult oysters appear incapable of metabolic compensation in response to temperature increase (Beiras et al, 1995;present study), even a moderate temperature rise can lead to spawning failure in polluted areas due to metabolic energy deficiency. Indeed, such failure has been earlier shown in freshwater mollusks where production and cumulative fecundity decreased gradually with increasing Cd concentrations (Perceval et al, 2002). Investigation of the effects of temperature and pollution stress on reproduction represent a fruitful future direction of studies to complement the emerging picture of potential ecological impacts of these combined stressors on populations of marine ectotherms.…”

Section: Discussionmentioning

confidence: 94%

Temperature-dependent stress response in oysters, Crassostrea virginica: Pollution reduces temperature tolerance in oysters

2006

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Combined effects of temperature and a toxic metal, cadmium (Cd), on energy metabolism were studied in a model marine bivalve, the eastern oyster Crassostrea virginica, acclimated at 20, 24 and 28• C and exposed to 50 g l −1 of Cd. Both increasing temperature and Cd exposure led to a rise in standard metabolic rates, and combined stressors appeared to override the capability for aerobic energy production resulting in impaired stress tolerance. Oysters exposed to elevated temperature but not Cd showed no significant change in condition, survival rate and lipid peroxidation, whereas those exposed to both Cd and temperature stress suffered high mortality accompanied by low condition index and elevated lipid peroxidation. Furthermore, RNA/DNA ratios indicative of protein synthesis rate, and levels of glutathione, which is involved in metal detoxification, increased in Cd-exposed oysters at 20• C but not at 28• C. Implications of the synergism between elevated temperatures and cadmium stress on energy metabolism of oysters are discussed in the light of the potential effects of climate change on oyster populations in polluted areas.

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“…Other factors such as salinity, temperature, and pH could influence MT concentrations. In fact, several studies showed the effect of theses abiotic factors on MT concentrations in different bivalve species like R. decussatus (Smaoui-Damak et al 2009), C. glaucum (Machreki-Ajmi 2009), M. galloprovincialis (Serafim et al 2002), Pyganodon grandis (Perceval et al 2002) etc. Biotic and abiotic factors seem to have a significant influence on MT/MTLP levels in some organisms.…”

Section: Mt Induction and Physiological Variabilitymentioning

confidence: 99%

Use of metallothioneins as biomarkers for environmental quality assessment in the Gulf of Gabès (Tunisia)

Ladhar-Chaabouni

Machreki-Ajmi

Hamza-Chaffai

2011

Environ Monit Assess

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Detection and assessment of the impact of pollution on biological resources imply increasing research on early-warning markers such as metallothioneins (MTs) in metal exposure. In this paper, we have collated published information on the use of metallothioneins and metallothionein-like proteins (MTLPs) as biomarkers for environmental quality assessment in the Gulf of Gabès. In this area, some species of fish and bivalve were used as bioindicators of pollution. In these species, an induction of MTs/MTLPs by the essential metals such as Cu and Zn and the non-essential metals such as Cd was observed by different authors who suggest the potential use of these proteins as biomarkers. However, MT concentrations can be influenced by many biotic (sex, maturity stages, and tissues) and abiotic factors (temperature, salinity, and pH). This is essentially the case in field studies where many parameters can randomly affect MT levels, so the endogeneous regulation of MTs must be considered before using MTs as an indicator of heavy metal exposure. Moreover, the use of biomarker cannot be examined independently of the evaluation of techniques that enable its quantification. Therefore, the approach to the use of MTs/MTLP as biomarkers of exposure for an assessment of the physiological status of aquatic organisms is discussed in this paper.

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Cadmium accumulation and metallothionein synthesis in freshwater bivalves (Pyganodon grandis): relative influence of the metal exposure gradient versus limnological variability

Cited by 60 publications

References 35 publications

Use of Siam weed biomarker in assessing heavy metal contaminations in traffic and solid waste polluted areas

Use of Siam weed biomarker in assessing heavy metal contaminations in traffic and solid waste polluted areas

Temperature-dependent stress response in oysters, Crassostrea virginica: Pollution reduces temperature tolerance in oysters

Use of metallothioneins as biomarkers for environmental quality assessment in the Gulf of Gabès (Tunisia)

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