Uptake and depuration of 241Am, 239+240pU| 238Pu, 137Cs and 106Ru by Mytilus edulis under natural stress

Clifton, R.J.; Stevens, HE; Hamilton, E.I.

doi:10.3354/meps054091

Cited by 5 publications

(6 citation statements)

References 16 publications

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“…On the contrary, the loss of 241Am in mollusc soft tissues is much slower than that of 137Cs (The biological half life is 300 d) (6). This slower elimination of americium may be attributable to biological turnover of cellular organelles and of soluble proteins.…”

Section: Biochemistry and Molecular Biology Internationalmentioning

confidence: 98%

“…The uptake and retention of 241Am and 137Cs in the tissues of bivalve molluscs have been studied in a series of laboratory experiments and these have shown major differences in their tissue distributions and retention times. Concentration factors were about 10 times higher for 241Am than for t37Cs (6). The highest concentrations of 241Am were found in the visceral mass (digestive gland) of bivalve molluscs (7,8,9,10) while 137Cs was uniformly distributed among different tissues (11,12).…”

Section: Introductionmentioning

confidence: 94%

“…The turnover of 137Cs in mussel and oyster soft tissues is relatively rapid (The biological half life is 39 d) (6,7) probably due to the lack of stable complexes with subcellular material.…”

Section: Biochemistry and Molecular Biology Internationalmentioning

confidence: 99%

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Identification of 137Cs‐ and 241Am‐binding sites in the oyster crassostrea gigas

Milcent¹,

Goudard²,

Durand³

et al. 1996

IUBMB Life

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The subcellular distribution and binding of 241Am and 137Cs in the visceral mass of the oyster Crassostrea gigas were investigated following exposure to sea water contaminated with these radionuclides. 241 Am was predominantly sequestered by the lysosomal system. Approximately, 10% of 241Am was associated with soluble macromolecules. 241Am was bound to lipofuscin, ferritin and to unidentified ligands of 60 to 15 kdaltons mol. wt. No evidence was found for binding of 241Am to metallothionein synthesized de novo. In contrast, only small amounts of 137Cs were present in lysosomes and 137Cs was not associated with soluble cellular proteins. These results indicate that they enter complete separate metabolic pathways.

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Section: Biochemistry and Molecular Biology Internationalmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 94%

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Identification of 137Cs‐ and 241Am‐binding sites in the oyster crassostrea gigas

Milcent¹,

Goudard²,

Durand³

et al. 1996

IUBMB Life

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“…The biokinetics of cesium in different mussels were studied [4][5][6]. In the present work, the biokinetics of Cs in four compartments in the green-lipped mussel Perna viridis, namely, gill, viscera, adductor muscle, and foot, were studied.…”

Section: Introductionmentioning

confidence: 99%

Biokinetics of Cesium in Perna Viridis

Yu¹,

Ng²,

Li³

2000

Environ Toxicol Chem

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Abstract-The biokinetics of Cs in four compartments in the green-lipped mussel Perna viridis, namely, gill, viscera, adductor muscle, and foot, were studied. First-order linear differential equations were set up for these four compartments, and their solutions were used to fit the experimental data. The parameters governing the biokinetics, which depend on the elimination rate from each compartment and the transfer coefficient between compartments, were found. These are useful in understanding the physiology of Perna viridis, in predicting the activity of cesium in each compartment of Perna viridis from a contamination history, or in using Perna viridis as a sentinel organism for surveying and monitoring radioactive contamination. The results showed that the viscera should be represented by more than one compartment. Concentration factors for the four compartments and for Perna viridis were also determined, and these agreed well with reported values in the literature.

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“…The biokinetics of cesium in different mussels were studied [4–6]. In the present work, the biokinetics of Cs in four compartments in the green‐lipped mussel Perna viridis , namely, gill, viscera, adductor muscle, and foot, were studied.…”

Section: Introductionmentioning

confidence: 99%

Biokinetics of cesium in Perna viridis

Lam

et al. 2000

Enviro Toxic and Chemistry

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The biokinetics of Cs in four compartments in the green‐lipped mussel Perna viridis, namely, gill, viscera, adductor muscle, and foot, were studied. First‐order linear differential equations were set up for these four compartments, and their solutions were used to fit the experimental data. The parameters governing the biokinetics, which depend on the elimination rate from each compartment and the transfer coefficient between compartments, were found. These are useful in understanding the physiology of Perna viridis, in predicting the activity of cesium in each compartment of Perna viridis from a contamination history, or in using Perna viridis as a sentinel organism for surveying and monitoring radioactive contamination. The results showed that the viscera should be represented by more than one compartment. Concentration factors for the four compartments and for Perna viridis were also determined, and these agreed well with reported values in the literature.

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Uptake and depuration of 241Am, 239+240pU| 238Pu, 137Cs and 106Ru by Mytilus edulis under natural stress

Cited by 5 publications

References 16 publications

Identification of 137Cs‐ and 241Am‐binding sites in the oyster crassostrea gigas

Identification of 137Cs‐ and 241Am‐binding sites in the oyster crassostrea gigas

Biokinetics of Cesium in Perna Viridis

Biokinetics of cesium in Perna viridis

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