Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts
13C values of amino acids Sample 13C values (‰) of amino acids. Each sample was analyzed in triplicate (mean ± SD). NA indicates missing values or replicates. The values are compiled from this study and Larsen et al. (Plos One 2013) (marked with asterisk under sample code). Larsen_13CAA.csv Suppleme...
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ftcsic:oai:digital.csic.es:10261/281362 2024-02-11T09:59:30+01:00 Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts Larsen, Thomas Ventura, Marc Maraldo, Kristine Triadó-Margarit, Xavier Casamayor, Emilio O. Wang, Yiming V. Andersen, Nils O'Brien, Diane M. 2017-06-13 text/csv http://hdl.handle.net/10261/281362 https://doi.org/10.5061/dryad.6f798 en eng Dryad Larsen, Thomas; Ventura, Marc; Maraldo, Kristine; Triadó-Margarit, Xavier; Casamayor, Emilio O.; Wang, Yiming V.; Andersen, Nils; O'Brien, Diane M. (2017): The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts; http://dx.doi.org/10.1111/1365-2656.12563. http://hdl.handle.net/10261/133876 https://doi.org/10.5061/dryad.6f798 Sí Larsen, Thomas; Ventura, Marc; Maraldo, Kristine; Triadó-Margarit, Xavier; Casamayor, Emilio O.; Wang, Yiming V.; Andersen, Nils; O'Brien, Diane M. (2017): Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts [Dataset]; Dryad; Version 1; https://doi.org/10.5061/dryad.6f798 http://hdl.handle.net/10261/281362 doi:10.5061/dryad.6f798 http://datadryad.org/stash/dataset/doi:10.5061/dryad.6f798 open Stable carbon isotopes amino acids dataset 2017 ftcsic https://doi.org/10.5061/dryad.6f79810.1111/1365-2656.12563 2024-01-16T11:30:10Z 13C values of amino acids Sample 13C values (‰) of amino acids. Each sample was analyzed in triplicate (mean ± SD). NA indicates missing values or replicates. The values are compiled from this study and Larsen et al. (Plos One 2013) (marked with asterisk under sample code). Larsen_13CAA.csv Supplementation of nutrients by symbionts enables consumers to thrive on resources that might otherwise be insufficient to meet nutritional demands. Such nutritional subsidies by intracellular symbionts has been well studied; however, supplementation of de novo synthesized nutrients to hosts by extracellular gut symbionts is poorly documented, especially for generalists with relatively undifferentiated intestinal tracts. Although gut symbionts facilitate degradation of resources that would otherwise remain inaccessible to the host, such digestive actions alone cannot make up for dietary insufficiencies of macronutrients such as essential amino acids (EAA). Documenting whether gut symbionts also function as partners for symbiotic EAA supplementation is important because the question of how some detritivores are able to subsist on nutritionally insufficient diets has remained unresolved. To answer this poorly-understood nutritional aspect of symbiont-host interactions, we studied the enchytraeid worm, a bulk soil feeder that thrives in arctic peatlands. In a combined field and laboratory study, we employed stable isotope fingerprinting of amino acids to identify the biosynthetic origins of amino acids to bacteria, fungi and plants in enchytraeids. Enchytraeids collected from arctic peatlands derived more than 80% of their EAA from bacteria. In a controlled feeding study with the enchytraeid Enchytraeus crypticus, EAA derived almost exclusively from gut bacteria when the worms fed on higher fiber diets, whereas most of the enchytraeids' EAA derived from dietary sources when fed on lower fiber diets. Our gene sequencing results of gut microbiota showed that the worms harbor several taxa in their gut lumen absent from their ... Dataset Arctic Arctic Digital.CSIC (Spanish National Research Council) Arctic |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Stable carbon isotopes amino acids |
spellingShingle |
Stable carbon isotopes amino acids Larsen, Thomas Ventura, Marc Maraldo, Kristine Triadó-Margarit, Xavier Casamayor, Emilio O. Wang, Yiming V. Andersen, Nils O'Brien, Diane M. Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
topic_facet |
Stable carbon isotopes amino acids |
description |
13C values of amino acids Sample 13C values (‰) of amino acids. Each sample was analyzed in triplicate (mean ± SD). NA indicates missing values or replicates. The values are compiled from this study and Larsen et al. (Plos One 2013) (marked with asterisk under sample code). Larsen_13CAA.csv Supplementation of nutrients by symbionts enables consumers to thrive on resources that might otherwise be insufficient to meet nutritional demands. Such nutritional subsidies by intracellular symbionts has been well studied; however, supplementation of de novo synthesized nutrients to hosts by extracellular gut symbionts is poorly documented, especially for generalists with relatively undifferentiated intestinal tracts. Although gut symbionts facilitate degradation of resources that would otherwise remain inaccessible to the host, such digestive actions alone cannot make up for dietary insufficiencies of macronutrients such as essential amino acids (EAA). Documenting whether gut symbionts also function as partners for symbiotic EAA supplementation is important because the question of how some detritivores are able to subsist on nutritionally insufficient diets has remained unresolved. To answer this poorly-understood nutritional aspect of symbiont-host interactions, we studied the enchytraeid worm, a bulk soil feeder that thrives in arctic peatlands. In a combined field and laboratory study, we employed stable isotope fingerprinting of amino acids to identify the biosynthetic origins of amino acids to bacteria, fungi and plants in enchytraeids. Enchytraeids collected from arctic peatlands derived more than 80% of their EAA from bacteria. In a controlled feeding study with the enchytraeid Enchytraeus crypticus, EAA derived almost exclusively from gut bacteria when the worms fed on higher fiber diets, whereas most of the enchytraeids' EAA derived from dietary sources when fed on lower fiber diets. Our gene sequencing results of gut microbiota showed that the worms harbor several taxa in their gut lumen absent from their ... |
format |
Dataset |
author |
Larsen, Thomas Ventura, Marc Maraldo, Kristine Triadó-Margarit, Xavier Casamayor, Emilio O. Wang, Yiming V. Andersen, Nils O'Brien, Diane M. |
author_facet |
Larsen, Thomas Ventura, Marc Maraldo, Kristine Triadó-Margarit, Xavier Casamayor, Emilio O. Wang, Yiming V. Andersen, Nils O'Brien, Diane M. |
author_sort |
Larsen, Thomas |
title |
Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
title_short |
Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
title_full |
Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
title_fullStr |
Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
title_full_unstemmed |
Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
title_sort |
data from: the dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts |
publisher |
Dryad |
publishDate |
2017 |
url |
http://hdl.handle.net/10261/281362 https://doi.org/10.5061/dryad.6f798 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_relation |
Larsen, Thomas; Ventura, Marc; Maraldo, Kristine; Triadó-Margarit, Xavier; Casamayor, Emilio O.; Wang, Yiming V.; Andersen, Nils; O'Brien, Diane M. (2017): The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts; http://dx.doi.org/10.1111/1365-2656.12563. http://hdl.handle.net/10261/133876 https://doi.org/10.5061/dryad.6f798 Sí Larsen, Thomas; Ventura, Marc; Maraldo, Kristine; Triadó-Margarit, Xavier; Casamayor, Emilio O.; Wang, Yiming V.; Andersen, Nils; O'Brien, Diane M. (2017): Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts [Dataset]; Dryad; Version 1; https://doi.org/10.5061/dryad.6f798 http://hdl.handle.net/10261/281362 doi:10.5061/dryad.6f798 http://datadryad.org/stash/dataset/doi:10.5061/dryad.6f798 |
op_rights |
open |
op_doi |
https://doi.org/10.5061/dryad.6f79810.1111/1365-2656.12563 |
_version_ |
1790595375189458944 |