Haloperoxidase activities in Arctic macroalgae |
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Authors: | Gabriele Mehrtens |
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Institution: | (1) Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany |
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Abstract: | Haloperoxidase activities were assayed in 21 species of Arctic green, red and brown macroalgae collected in the Kongsfjord at Ny-Ålesund (Svalbard). The enzymes were specific for bromide and/or iodide, but not for chloride. Highest bromoperoxidase activities were found in the brown seaweads Laminaria saccharina and L. digitata, whereas highest iodoperoxidase activities were measured in the green species Acrosiphonia sonderi and Enteromorpha compressa. Optimum pH for bromination ranged between pH 4 and 7. |
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