Sub-cellular partitioning of Zn, Cu, Cd and Pb in the digestive gland of native Octopus vulgaris exposed to different metal concentrations (Portugal).

Sub-cellular partitioning of Zn, Cu, Cd and Pb in the digestive gland of native Octopus vulgaris exposed to different metal concentrations (Portugal). Research Abstract Details 

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Sub-cellular partitioning of Zn, Cu, Cd and Pb in the digestive gland of native Octopus vulgaris exposed to different metal concentrations (Portugal). Abstract Text:

J Raimundo,C Vale,R Duarte,I Moura,J Raimundo,C Vale,R Duarte,I Moura,

Concentrations of Zn, Cu, Cd and Pb and their sub-cellular distributions were determined in composite samples of digestive glands of the common octopus, Octopus vulgaris caught from two areas of the Portuguese coast characterised by contrasting metal contamination. Minor contents of Zn (1%), Cu (2%), Cd (6%) and Pb (7%) were found in the insoluble fraction, consisting of nuclei, mitochondria, lysosomes and microsome operationally separated from the whole digestive gland through a sequential centrifugation. A tendency for linear relationships between metal concentrations in nuclei, mitochondria, lysosomes and whole digestive gland was observed. These relationships suggest that despite low metal content organelles responded to the increasing accumulated metals, which means that detoxifying mechanism in cytosol was incomplete. Poorer correlations between microsome and whole digestive gland did not point to metal toxicity in the analysed compartments. However, the high accumulated Cd indicated that O. vulgaris is an important vehicle of this element to its predators in the coastal environment.

Sub-cellular partitioning of Zn, Cu, Cd and Pb in the digestive gland of native Octopus vulgaris exposed to different metal concentrations (Portugal). Publishing Authors By Initials

J Raimundo,C Vale,R Duarte,I Moura,J Raimundo,C Vale,R Duarte,I Moura,

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Sub-cellular partitioning of Zn, Cu, Cd and Pb in the digestive gland of native Octopus vulgaris exposed to different metal concentrations (Portugal). Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Science of the total environment

VOLUME: 390

Page Numbers: 410-6

Journal Abbreviation: Sci. Total Environ.

ISSN: 0048-9697

DAY: 26

MONTH: 11

YEAR: 2007

Sub-cellular partitioning of Zn, Cu, Cd and Pb in the digestive gland of native Octopus vulgaris exposed to different metal concentrations (Portugal). Information

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LANGUAGE: eng

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AFFILIATION: National Institute for Agronomy and Fisheries Research - IPIMAR, Av. Brasília, 1449-006 Lisbon, Portugal.

Country: Netherlands

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MEDLINETA: Sci Total Environ

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