Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading"
Omega-3 (ω3 or n -3) long-chain polyunsaturated fatty acids (PUFA), including eicosapentaenoic acid and docosahexaenoic acid (DHA), play physiologically important roles in vertebrates. These compounds have long been believed to be originated almost exclusively from aquatic (mostly marine) single-cel...
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ftdatacite:10.6084/m9.figshare.c.4978466 2023-05-15T17:35:22+02:00 Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" Kabeya, Naoki İbrahim GÜR Oboh, Angela Evjemo, Jan Ove Malzahn, Arne M. Hontoria, Francisco Navarro, Juan C. Monroig, Óscar 2020 https://dx.doi.org/10.6084/m9.figshare.c.4978466 https://rs.figshare.com/collections/Supplementary_material_from_Unique_fatty_acid_desaturase_capacities_uncovered_in_i_Hediste_diversicolor_i_illustrate_the_roles_of_aquatic_invertebrates_in_trophic_upgrading_/4978466 unknown The Royal Society https://dx.doi.org/10.1098/rstb.2019.0654 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Biochemistry Ecology FOS Biological sciences Collection article 2020 ftdatacite https://doi.org/10.6084/m9.figshare.c.4978466 https://doi.org/10.1098/rstb.2019.0654 2021-11-05T12:55:41Z Omega-3 (ω3 or n -3) long-chain polyunsaturated fatty acids (PUFA), including eicosapentaenoic acid and docosahexaenoic acid (DHA), play physiologically important roles in vertebrates. These compounds have long been believed to be originated almost exclusively from aquatic (mostly marine) single-cell organisms. Yet, a recent study has discovered that many invertebrates possess a type of enzymes called methyl-end desaturases (ω x ) that enables them to endogenously produce n -3 long-chain PUFA and could make a significant contribution to production of these compounds in the marine environment. Polychaetes are major components of benthic fauna and thus important to maintain a robust food web as a recycler of organic matter and a prey item for higher trophic level species like fish. In the present study, we investigated the ω x enzymes from the common ragworm Hediste diversicolor , a common inhabitant in sedimentary littoral ecosystems of the North Atlantic. Functional assays of the H. diversicolor ω x demonstrated unique desaturation capacities. An ω3 desaturase mediated the conversion of n -6 fatty acid substrates into their corresponding n -3 products including DHA. A further enzyme possessed unique regioselectivities combining both ω6 and ω3 desaturase activities. These results illustrate that the long-chain PUFA biosynthetic enzymatic machinery of aquatic invertebrates such as polychaetes is highly diverse and clarify that invertebrates can be major contributors to fatty acid trophic upgrading in aquatic food webs.This article is part of the theme issue ‘The next horizons for lipids as “trophic biomarkers”: evidence and significance of consumer modification of dietary fatty acids’. Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
Biochemistry Ecology FOS Biological sciences |
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Biochemistry Ecology FOS Biological sciences Kabeya, Naoki İbrahim GÜR Oboh, Angela Evjemo, Jan Ove Malzahn, Arne M. Hontoria, Francisco Navarro, Juan C. Monroig, Óscar Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
topic_facet |
Biochemistry Ecology FOS Biological sciences |
description |
Omega-3 (ω3 or n -3) long-chain polyunsaturated fatty acids (PUFA), including eicosapentaenoic acid and docosahexaenoic acid (DHA), play physiologically important roles in vertebrates. These compounds have long been believed to be originated almost exclusively from aquatic (mostly marine) single-cell organisms. Yet, a recent study has discovered that many invertebrates possess a type of enzymes called methyl-end desaturases (ω x ) that enables them to endogenously produce n -3 long-chain PUFA and could make a significant contribution to production of these compounds in the marine environment. Polychaetes are major components of benthic fauna and thus important to maintain a robust food web as a recycler of organic matter and a prey item for higher trophic level species like fish. In the present study, we investigated the ω x enzymes from the common ragworm Hediste diversicolor , a common inhabitant in sedimentary littoral ecosystems of the North Atlantic. Functional assays of the H. diversicolor ω x demonstrated unique desaturation capacities. An ω3 desaturase mediated the conversion of n -6 fatty acid substrates into their corresponding n -3 products including DHA. A further enzyme possessed unique regioselectivities combining both ω6 and ω3 desaturase activities. These results illustrate that the long-chain PUFA biosynthetic enzymatic machinery of aquatic invertebrates such as polychaetes is highly diverse and clarify that invertebrates can be major contributors to fatty acid trophic upgrading in aquatic food webs.This article is part of the theme issue ‘The next horizons for lipids as “trophic biomarkers”: evidence and significance of consumer modification of dietary fatty acids’. |
format |
Article in Journal/Newspaper |
author |
Kabeya, Naoki İbrahim GÜR Oboh, Angela Evjemo, Jan Ove Malzahn, Arne M. Hontoria, Francisco Navarro, Juan C. Monroig, Óscar |
author_facet |
Kabeya, Naoki İbrahim GÜR Oboh, Angela Evjemo, Jan Ove Malzahn, Arne M. Hontoria, Francisco Navarro, Juan C. Monroig, Óscar |
author_sort |
Kabeya, Naoki |
title |
Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
title_short |
Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
title_full |
Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
title_fullStr |
Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
title_full_unstemmed |
Supplementary material from "Unique fatty acid desaturase capacities uncovered in Hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
title_sort |
supplementary material from "unique fatty acid desaturase capacities uncovered in hediste diversicolor illustrate the roles of aquatic invertebrates in trophic upgrading" |
publisher |
The Royal Society |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4978466 https://rs.figshare.com/collections/Supplementary_material_from_Unique_fatty_acid_desaturase_capacities_uncovered_in_i_Hediste_diversicolor_i_illustrate_the_roles_of_aquatic_invertebrates_in_trophic_upgrading_/4978466 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1098/rstb.2019.0654 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4978466 https://doi.org/10.1098/rstb.2019.0654 |
_version_ |
1766134509653196800 |