Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya
Chinstrap penguin Pygoscelis antarctica and macaroni penguin Eudyptes chrysolophus were collected at Bouvettfya in the south Atlantic. The average hepatic selenium levels for the two species were 6.6 ± 2.9 and 23.6 ± 3.4 ng/g wet weight (P < 0.001), respectively. The total hepatic glutathione per...
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Norwegian Polar Institute
1991
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ftjpolarres:oai:journals.openacademia.net:article/2354 2023-05-15T14:01:21+02:00 Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya Norheim, G. Mehlum, F. Bech, C. Moksnes, M.T. 1991-01-03 application/pdf https://polarresearch.net/index.php/polar/article/view/2354 https://doi.org/10.3402/polar.v9i1.6783 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2354/5604 https://polarresearch.net/index.php/polar/article/view/2354 doi:10.3402/polar.v9i1.6783 Copyright (c) 2018 Polar Research Polar Research; Vol. 9 No. 1 (1991); 109-111 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1991 ftjpolarres https://doi.org/10.3402/polar.v9i1.6783 2021-11-11T19:12:32Z Chinstrap penguin Pygoscelis antarctica and macaroni penguin Eudyptes chrysolophus were collected at Bouvettfya in the south Atlantic. The average hepatic selenium levels for the two species were 6.6 ± 2.9 and 23.6 ± 3.4 ng/g wet weight (P < 0.001), respectively. The total hepatic glutathione peroxidase (GSH-Px) activity in the two species was 629 ± 58 and 838 ± 88 u.kat/kg (P < 0.001), respectively. The average selenium dependent GSH-Px activity was 96 ± 3.2% of the total activity. All selenium was present in the cytosol. The selenium binding compounds were separated on Sephadex G-75 into three fractions, a high molecular weight fraction, a metallothionein fraction, and a third non-protein selenium containing fraction. There seems to be an agreement between the amount of selenium recovered in the first fraction and the GSH-Px activity. In chinstrap and macaroni penguins, the percentage of hepatic selenium recovered in the third non-protein fraction was 83 ± 2.6 and 94 ± 1.1% (P < 0.001), respectively. Article in Journal/Newspaper Antarc* Antarctica Bouvetøya Chinstrap penguin Eudyptes chrysolophus Macaroni penguin Polar Research Pygoscelis antarctica Polar Research (E-Journal) Bouvetøya ENVELOPE(3.358,3.358,-54.422,-54.422) Polar Research 9 1 109 111 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
Chinstrap penguin Pygoscelis antarctica and macaroni penguin Eudyptes chrysolophus were collected at Bouvettfya in the south Atlantic. The average hepatic selenium levels for the two species were 6.6 ± 2.9 and 23.6 ± 3.4 ng/g wet weight (P < 0.001), respectively. The total hepatic glutathione peroxidase (GSH-Px) activity in the two species was 629 ± 58 and 838 ± 88 u.kat/kg (P < 0.001), respectively. The average selenium dependent GSH-Px activity was 96 ± 3.2% of the total activity. All selenium was present in the cytosol. The selenium binding compounds were separated on Sephadex G-75 into three fractions, a high molecular weight fraction, a metallothionein fraction, and a third non-protein selenium containing fraction. There seems to be an agreement between the amount of selenium recovered in the first fraction and the GSH-Px activity. In chinstrap and macaroni penguins, the percentage of hepatic selenium recovered in the third non-protein fraction was 83 ± 2.6 and 94 ± 1.1% (P < 0.001), respectively. |
format |
Article in Journal/Newspaper |
author |
Norheim, G. Mehlum, F. Bech, C. Moksnes, M.T. |
spellingShingle |
Norheim, G. Mehlum, F. Bech, C. Moksnes, M.T. Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya |
author_facet |
Norheim, G. Mehlum, F. Bech, C. Moksnes, M.T. |
author_sort |
Norheim, G. |
title |
Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya |
title_short |
Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya |
title_full |
Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya |
title_fullStr |
Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya |
title_full_unstemmed |
Distribution of selenium binding proteins in liver from two species of penguins from Bouvetøya |
title_sort |
distribution of selenium binding proteins in liver from two species of penguins from bouvetøya |
publisher |
Norwegian Polar Institute |
publishDate |
1991 |
url |
https://polarresearch.net/index.php/polar/article/view/2354 https://doi.org/10.3402/polar.v9i1.6783 |
long_lat |
ENVELOPE(3.358,3.358,-54.422,-54.422) |
geographic |
Bouvetøya |
geographic_facet |
Bouvetøya |
genre |
Antarc* Antarctica Bouvetøya Chinstrap penguin Eudyptes chrysolophus Macaroni penguin Polar Research Pygoscelis antarctica |
genre_facet |
Antarc* Antarctica Bouvetøya Chinstrap penguin Eudyptes chrysolophus Macaroni penguin Polar Research Pygoscelis antarctica |
op_source |
Polar Research; Vol. 9 No. 1 (1991); 109-111 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2354/5604 https://polarresearch.net/index.php/polar/article/view/2354 doi:10.3402/polar.v9i1.6783 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v9i1.6783 |
container_title |
Polar Research |
container_volume |
9 |
container_issue |
1 |
container_start_page |
109 |
op_container_end_page |
111 |
_version_ |
1766271083165515776 |