The subcellular localisation of absorbed copper in Fucus.

The localisation of absorbed copper in the brown seaweeds Fucus vesiculosus L. and Fucus serratus L. was studied by X-ray microanalysis in the electron microscope. The metal was localised in the physodes of the photosynthetic and inner non-photosynthetic cells. No significant copper was found in the cell walls of these algae, which had been collected from sites which were continually polluted by run-off from old copper mines. [ABSTRACT FROM AUTHOR]