The mutagenicity of acid digests from several common marine macroalgae (Fucus serratus,Porphyra umbilicalis,Enteromorpha spp.) |
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| Authors: | William S Barnes James M Parry |
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| Institution: | Department of Botany, University of Massachusetts, Amherst, Massachusetts 01003, USA;Department of Genetics, University College of Swansea, Singleton Park, Swansea SA2 8PP, Great Britain |
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| Abstract: | Acid digests of three common marine macroalgae (Fucus serratus, Enteromorpha spp., Porphyra umbilicalis) exhibit substantial mutagenic activity for Salmonella typhimurium strains TA98 and TA100 in the microtire fluctuation test. Although these algae are known to concentrate heavy metals, the mutagen(s) is probably an organic compound(s).Collections of these three marine macroalgae were made along the Gower coast of Wales, Great Britain, at distances between 8·0 and 32·0 km from the industrial center of Swansea-Port Talbot. When tested for mutagenicity with TA98, the acid digests of F. serratus and Enteromorpha spp. showed an inverse relationship between activity and distance from Swansea-Port Talbot. This relationship was not observed with P. umbilicalis or with any of the digests when tested with TA100.These data are consistent with the hypothesis that Swansea-Port Talbot is a point emitter for contaminants which are mutagenic for TA98 and are accumulated by Enteromorpha and Fucus. |
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