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Further 237Pu experiments with the plaice Pleuronectes platessa: Subcellular distribution of plutonium in the liver

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Abstract

The subcellular distribution of 237Pu in the livers of the plaice Pleuronectes platessa has been studied by differential and isopycnic gradient centrifugation. It has been shown that the 237Pu is particularly accumulated in pellets sedimenting out at 3000 and 6000 g which, by deduction from marker enzyme tests, contain a mixture of mitochondria and lysosomes. Separation of lysosomes from mitochondria was achieved by using a non-lytic detergent injected into the fish 3 d prior to removal of the livers; it was found that 237Pu was associated with the lysosomal fraction. In this respect, the metabolism of plutonium of the plaice resembles that of the rat.

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Authors and Affiliations

  1. Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research, Fisheries Radiobiological Laboratory, Hamilton Dock, NR32 1DA, Lowestoft, Suffolk, England

    D. R. P. Leonard & R. J. Pentreath

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  1. D. R. P. Leonard
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  2. R. J. Pentreath
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Communicated by J. Mauchline, Oban

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Leonard, D.R.P., Pentreath, R.J. Further 237Pu experiments with the plaice Pleuronectes platessa: Subcellular distribution of plutonium in the liver. Mar. Biol. 63, 67–71 (1981). https://doi.org/10.1007/BF00394663

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