Inhaltszusammenfassung

Vanadium-dependent peroxidase activity in extracts of Ascophyllum nodosum growing in the intertidal region close to Roscoff/France, and algal vanadium levels, followed approximately similar seasonal variation, as deduced from a study lasting from April 2005 to March 2006. High peroxidase (PO) activity was found in extracts obtained from algae collected in between midwinter to spring [similar to 100-190 U per g dry mass (dm), triiodide assay] with a maximum in April. Periods of reduced PO acti...Vanadium-dependent peroxidase activity in extracts of Ascophyllum nodosum growing in the intertidal region close to Roscoff/France, and algal vanadium levels, followed approximately similar seasonal variation, as deduced from a study lasting from April 2005 to March 2006. High peroxidase (PO) activity was found in extracts obtained from algae collected in between midwinter to spring [similar to 100-190 U per g dry mass (dm), triiodide assay] with a maximum in April. Periods of reduced PO activity lasted from summer to early winter (similar to 50-90 U per g dm). High vanadium levels (1.5-2.2 mg kg(-1) dm) were found in algae collected from midwinter to spring, whereas reduced levels (0.6-1.4 mg kg(-1) dm) were found in summer to early winter. (C) 2008 Elsevier Ltd. All rights reserved. » weiterlesen» einklappen

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