Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel
Abstract The sterol composition of free sterol and steryl ester fractions of the fish parasite Paratenuisentis ambiguus was determined. In addition, the fatty acid composition of various neutral lipid classes, i.e., wax esters, steryl esters, triacylglycerols and free fatty acids, as well as the com...
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crwiley:10.1007/bf02537311 2024-06-02T07:55:13+00:00 Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel Weber, Nikolaus Vosmann, Klaus Aitzetmüller, Kurt Filipponi, Christin Taraschewski, Horst 1994 http://dx.doi.org/10.1007/bf02537311 https://onlinelibrary.wiley.com/doi/full/10.1007/BF02537311 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Lipids volume 29, issue 6, page 421-427 ISSN 0024-4201 1558-9307 journal-article 1994 crwiley https://doi.org/10.1007/bf02537311 2024-05-03T11:55:24Z Abstract The sterol composition of free sterol and steryl ester fractions of the fish parasite Paratenuisentis ambiguus was determined. In addition, the fatty acid composition of various neutral lipid classes, i.e., wax esters, steryl esters, triacylglycerols and free fatty acids, as well as the composition of the 1‐ O ‐alkyl moieties of total ether glycerolipids of the parasite, were investigated. The results of these studies were compared with those obtained on the intestinal tract tissue of its host, the eel ( Anguilla anguilla ). Cholesterol is the major sterol in both P. ambiguus and A. anguilla . However, the sterols of P. ambiguus contain high proportions (>20%) of other sterols, such as campesterol and various dehydrosterols. [e.g., 7‐dehydrocholesterol and cholesta‐5,22( E )‐dienol]. The presence of these minor sterols agrees with the known biotransformations of exogenous sterols in various helminths. Considerable differences are found in the fatty acid composition of neutral lipid fractions, as well as the total lipid extract from the endoparasite as compared to the host tissue. In particular, eicosapentaenoic acid (20∶5n−3), other polyunsaturated fatty acids, such as 20∶4n−6, 22∶5n−3 and 22∶6n−3, as well as long‐chain saturated fatty acids, such as 20∶0, are generally enriched in the neutral lipid fractions of the parasite as compared to those of infected eel intestine. The analysis of ether glycerolipids revealed that 1‐ O ‐hexadecyl (16∶0) and 1‐ O ‐hexadecenyl (16∶1) moieties were present in similar proportions in the ether lipids of both P. ambiguus and eel intestine, whereas 1‐ O ‐octadecyl (18∶0) moieties are more prominent in the parasite and 1‐ O ‐octadecenyl (18∶1) moieties in the eel. The results of these studies show that P. ambiguus has specific mechanisms for the regulation of the sterol and fatty acid composition of its neutral lipids. Article in Journal/Newspaper Anguilla anguilla Wiley Online Library Lipids 29 6 421 427 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The sterol composition of free sterol and steryl ester fractions of the fish parasite Paratenuisentis ambiguus was determined. In addition, the fatty acid composition of various neutral lipid classes, i.e., wax esters, steryl esters, triacylglycerols and free fatty acids, as well as the composition of the 1‐ O ‐alkyl moieties of total ether glycerolipids of the parasite, were investigated. The results of these studies were compared with those obtained on the intestinal tract tissue of its host, the eel ( Anguilla anguilla ). Cholesterol is the major sterol in both P. ambiguus and A. anguilla . However, the sterols of P. ambiguus contain high proportions (>20%) of other sterols, such as campesterol and various dehydrosterols. [e.g., 7‐dehydrocholesterol and cholesta‐5,22( E )‐dienol]. The presence of these minor sterols agrees with the known biotransformations of exogenous sterols in various helminths. Considerable differences are found in the fatty acid composition of neutral lipid fractions, as well as the total lipid extract from the endoparasite as compared to the host tissue. In particular, eicosapentaenoic acid (20∶5n−3), other polyunsaturated fatty acids, such as 20∶4n−6, 22∶5n−3 and 22∶6n−3, as well as long‐chain saturated fatty acids, such as 20∶0, are generally enriched in the neutral lipid fractions of the parasite as compared to those of infected eel intestine. The analysis of ether glycerolipids revealed that 1‐ O ‐hexadecyl (16∶0) and 1‐ O ‐hexadecenyl (16∶1) moieties were present in similar proportions in the ether lipids of both P. ambiguus and eel intestine, whereas 1‐ O ‐octadecyl (18∶0) moieties are more prominent in the parasite and 1‐ O ‐octadecenyl (18∶1) moieties in the eel. The results of these studies show that P. ambiguus has specific mechanisms for the regulation of the sterol and fatty acid composition of its neutral lipids. |
format |
Article in Journal/Newspaper |
author |
Weber, Nikolaus Vosmann, Klaus Aitzetmüller, Kurt Filipponi, Christin Taraschewski, Horst |
spellingShingle |
Weber, Nikolaus Vosmann, Klaus Aitzetmüller, Kurt Filipponi, Christin Taraschewski, Horst Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel |
author_facet |
Weber, Nikolaus Vosmann, Klaus Aitzetmüller, Kurt Filipponi, Christin Taraschewski, Horst |
author_sort |
Weber, Nikolaus |
title |
Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel |
title_short |
Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel |
title_full |
Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel |
title_fullStr |
Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel |
title_full_unstemmed |
Sterol and fatty acid composition of neutral lipids of Paratenuisentis ambiguus and its host eel |
title_sort |
sterol and fatty acid composition of neutral lipids of paratenuisentis ambiguus and its host eel |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1007/bf02537311 https://onlinelibrary.wiley.com/doi/full/10.1007/BF02537311 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Lipids volume 29, issue 6, page 421-427 ISSN 0024-4201 1558-9307 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1007/bf02537311 |
container_title |
Lipids |
container_volume |
29 |
container_issue |
6 |
container_start_page |
421 |
op_container_end_page |
427 |
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1800747071017320448 |