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The biotransformation of monomethylarsonate and dimethylarsinate into arsenobetaine in seawater and mussels

✍ Scribed by W R Cullen; J C Nelson

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
597 KB
Volume
7
Category
Article
ISSN
0268-2605

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✦ Synopsis

Water-soluble 3H-labeled arsenic compounds were phenol-extracted from mussels (Mytilus edulis) and seawater after exposure to [3H]monomethylarsonate (MMAA) and [3H]dimethylarsinate (DMAA). Varying amounts of ['HI arsenobetaine were found in mussels and seawater, depending upon the experimental conditions. Tbe results indicate that arsenobetaine is principally biosynthesized by microscopic organisms in the seawater and that it is bioaccumulated by mussels. Total arsenic concentrations in mussel flesh, byssal threads and shells were also determined, showing concentration increases in all three compartments.

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