| Title: | "Emission of volatile halogenated compounds, speciation and localization of bromine and iodine in the brown algal genome model Ectocarpus siliculosus" |
| Author(s): | Kupper FC; Miller EP; Andrews SJ; Hughes C; Carpenter LJ; Meyer-Klaucke W; Toyama C; Muramatsu Y; Feiters MC; Carrano CJ; |
| Address: | "Oceanlab, University of Aberdeen, Main Street, Newburgh, AB41 6AA, Scotland, UK. fkuepper@abdn.ac.uk. Dunstaffnage Marine Laboratory, Scottish Association for Marine Science, Oban, Argyll, PA37 1QA, Scotland, UK. fkuepper@abdn.ac.uk. Department of Chemistry and Biochemistry, San Diego State University, San Diego, CA, 92182-1030, USA. Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, YO10 5DD, UK. Environment Department, University of York, York, YO10 5NG, UK. Department of Chemistry - Inorganic Chemistry, Faculty of Science, University of Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany. Geological Survey of Japan, The National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8567, Japan. Department of Chemistry, Faculty of Science, Gakushuin University, Toshima-Ku, Tokyo, 171-8588, Japan. Department of Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands" |
| DOI: | 10.1007/s00775-018-1539-7 |
| ISSN/ISBN: | 1432-1327 (Electronic) 0949-8257 (Linking) |
| Abstract: | "This study explores key features of bromine and iodine metabolism in the filamentous brown alga and genomics model Ectocarpus siliculosus. Both elements are accumulated in Ectocarpus, albeit at much lower concentration factors (2-3 orders of magnitude for iodine, and < 1 order of magnitude for bromine) than e.g. in the kelp Laminaria digitata. Iodide competitively reduces the accumulation of bromide. Both iodide and bromide are accumulated in the cell wall (apoplast) of Ectocarpus, with minor amounts of bromine also detectable in the cytosol. Ectocarpus emits a range of volatile halogenated compounds, the most prominent of which by far is methyl iodide. Interestingly, biosynthesis of this compound cannot be accounted for by vanadium haloperoxidase since the latter have not been found to catalyze direct halogenation of an unactivated methyl group or hydrocarbon so a methyl halide transferase-type production mechanism is proposed" |
| Keywords: | "Bromine/chemistry/*metabolism Halogenation Hydrocarbons, Halogenated/chemistry/*metabolism Iodine/chemistry/*metabolism Phaeophyta/chemistry/cytology/*metabolism Volatile Organic Compounds/chemistry/*metabolism Energy-dispersive X-ray analysis Halocarbons;" |
| Notes: | "MedlineKupper, Frithjof C Miller, Eric P Andrews, Stephen J Hughes, Claire Carpenter, Lucy J Meyer-Klaucke, Wolfram Toyama, Chiaki Muramatsu, Yasuyuki Feiters, Martin C Carrano, Carl J eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Germany 2018/03/11 J Biol Inorg Chem. 2018 Oct; 23(7):1119-1128. doi: 10.1007/s00775-018-1539-7. Epub 2018 Mar 9" |
