The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters.
Over recent decades there have been numerous reports of the occurrence of trimethylamine-N-oxide (TMAO) in marine organisms, including algae, zooplankton and fish, where it is proposed to function as an osmolyte and may be involved in a number of other physiological roles. While it may seem reasonab...
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Online Access: | https://pure.uhi.ac.uk/en/publications/a2f1ff41-1f16-446e-aaab-017d7dbfc7aa https://doi.org/10.1016/j.marchem.2004.04.005 |
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ftuhipublicatio:oai:pure.atira.dk:publications/a2f1ff41-1f16-446e-aaab-017d7dbfc7aa 2024-05-19T07:31:48+00:00 The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. Hatton, Angela 2004 https://pure.uhi.ac.uk/en/publications/a2f1ff41-1f16-446e-aaab-017d7dbfc7aa https://doi.org/10.1016/j.marchem.2004.04.005 eng eng https://pure.uhi.ac.uk/en/publications/a2f1ff41-1f16-446e-aaab-017d7dbfc7aa info:eu-repo/semantics/restrictedAccess Hatton , A 2004 , ' The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. ' , Marine Chemistry , no. 1 , pp. 65-75 . https://doi.org/10.1016/j.marchem.2004.04.005 SEAWATER AMMONIA Chemistry Multidisciplinary BIOGENIC SULFUR-COMPOUNDS METHYLAMINES TELEOST FISHES GAS-CHROMATOGRAPHY ARABIAN SEA Oceanography DIMETHYLSULFOXIDE NATURAL-WATERS ION CHROMATOGRAPHY article 2004 ftuhipublicatio https://doi.org/10.1016/j.marchem.2004.04.005 2024-04-25T00:21:46Z Over recent decades there have been numerous reports of the occurrence of trimethylamine-N-oxide (TMAO) in marine organisms, including algae, zooplankton and fish, where it is proposed to function as an osmolyte and may be involved in a number of other physiological roles. While it may seem reasonable to assume that TMAO should also be present in seawater, to date its occurrence has not been reported. Here we report the first quantitative measurements of TMAO concentration and distribution in seawater. Results are also compared to the structurally and biochemically analogous sulphur compound, dimethylsulphoxide (DMSO) and its precursor dimethylsulphide (DMS). Studies were conducted in the coastal waters off the Antarctic Peninsula between January and February 1999. Concentrations of dissolved TMAO ranged from below the analytical detection limit (1.65 nmol dm(-3)) to 76.9 nmol dm(-3) in the upper water column (to 100 in), with a mean of 15.2 nmol dm(-3). These concentrations are comparable to those of DMSO, (mean 8.7 nmol dm(-3)) and DMS (mean 3.0 nmol dm(-3)), and are highly comparable to those of other nitrogen species, such as the methylamines (MAs). In vertical profiles, greatest concentrations of TMAO were observed in surface waters where they exceeded those of all other methylamine analytes. (C) 2004 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula University of the Highlands and Islands: Research Database of UHI Marine Chemistry 91 1-4 65 75 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
SEAWATER AMMONIA Chemistry Multidisciplinary BIOGENIC SULFUR-COMPOUNDS METHYLAMINES TELEOST FISHES GAS-CHROMATOGRAPHY ARABIAN SEA Oceanography DIMETHYLSULFOXIDE NATURAL-WATERS ION CHROMATOGRAPHY |
spellingShingle |
SEAWATER AMMONIA Chemistry Multidisciplinary BIOGENIC SULFUR-COMPOUNDS METHYLAMINES TELEOST FISHES GAS-CHROMATOGRAPHY ARABIAN SEA Oceanography DIMETHYLSULFOXIDE NATURAL-WATERS ION CHROMATOGRAPHY Hatton, Angela The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. |
topic_facet |
SEAWATER AMMONIA Chemistry Multidisciplinary BIOGENIC SULFUR-COMPOUNDS METHYLAMINES TELEOST FISHES GAS-CHROMATOGRAPHY ARABIAN SEA Oceanography DIMETHYLSULFOXIDE NATURAL-WATERS ION CHROMATOGRAPHY |
description |
Over recent decades there have been numerous reports of the occurrence of trimethylamine-N-oxide (TMAO) in marine organisms, including algae, zooplankton and fish, where it is proposed to function as an osmolyte and may be involved in a number of other physiological roles. While it may seem reasonable to assume that TMAO should also be present in seawater, to date its occurrence has not been reported. Here we report the first quantitative measurements of TMAO concentration and distribution in seawater. Results are also compared to the structurally and biochemically analogous sulphur compound, dimethylsulphoxide (DMSO) and its precursor dimethylsulphide (DMS). Studies were conducted in the coastal waters off the Antarctic Peninsula between January and February 1999. Concentrations of dissolved TMAO ranged from below the analytical detection limit (1.65 nmol dm(-3)) to 76.9 nmol dm(-3) in the upper water column (to 100 in), with a mean of 15.2 nmol dm(-3). These concentrations are comparable to those of DMSO, (mean 8.7 nmol dm(-3)) and DMS (mean 3.0 nmol dm(-3)), and are highly comparable to those of other nitrogen species, such as the methylamines (MAs). In vertical profiles, greatest concentrations of TMAO were observed in surface waters where they exceeded those of all other methylamine analytes. (C) 2004 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Hatton, Angela |
author_facet |
Hatton, Angela |
author_sort |
Hatton, Angela |
title |
The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. |
title_short |
The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. |
title_full |
The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. |
title_fullStr |
The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. |
title_full_unstemmed |
The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. |
title_sort |
occurrence and distribution of trimethylamine-n-oxide (tmao) in antarctic coastal waters. |
publishDate |
2004 |
url |
https://pure.uhi.ac.uk/en/publications/a2f1ff41-1f16-446e-aaab-017d7dbfc7aa https://doi.org/10.1016/j.marchem.2004.04.005 |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
Hatton , A 2004 , ' The occurrence and distribution of trimethylamine-N-oxide (TMAO) in Antarctic Coastal waters. ' , Marine Chemistry , no. 1 , pp. 65-75 . https://doi.org/10.1016/j.marchem.2004.04.005 |
op_relation |
https://pure.uhi.ac.uk/en/publications/a2f1ff41-1f16-446e-aaab-017d7dbfc7aa |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.marchem.2004.04.005 |
container_title |
Marine Chemistry |
container_volume |
91 |
container_issue |
1-4 |
container_start_page |
65 |
op_container_end_page |
75 |
_version_ |
1799469679398354944 |