Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation
6 pages, 2 figures, 3 tables Experiments were conducted in the mesopelagic subtropical northeast Atlantic Ocean to determine the range of variability in the prokaryotic leucine-to-carbon conversion factor (CF), and prokaryotic growth efficiency (PGE). The way prokaryotic heterotrophic production (PH...
Published in: | Aquatic Microbial Ecology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter Research
2010
|
Subjects: | |
Online Access: | http://hdl.handle.net/10261/80047 https://doi.org/10.3354/ame01422 |
id |
ftcsic:oai:digital.csic.es:10261/80047 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/80047 2024-02-11T10:07:03+01:00 Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation Baltar, Federico Arístegui, Javier Gasol, Josep M. Herndl, Gerhard J. 2010-06-16 http://hdl.handle.net/10261/80047 https://doi.org/10.3354/ame01422 en eng Inter Research https://doi.org/10.3354/ame01422 doi:10.3354/ame01422 issn: 0948-3055 e-issn: 1616-1564) Aquatic Microbial Ecology 60(3): 227-232 (2010) http://hdl.handle.net/10261/80047 open Prokaryotic growth efficiency Leucine-to-carbon conversion factor Deep ocean artículo http://purl.org/coar/resource_type/c_6501 2010 ftcsic https://doi.org/10.3354/ame01422 2024-01-16T09:51:08Z 6 pages, 2 figures, 3 tables Experiments were conducted in the mesopelagic subtropical northeast Atlantic Ocean to determine the range of variability in the prokaryotic leucine-to-carbon conversion factor (CF), and prokaryotic growth efficiency (PGE). The way prokaryotic heterotrophic production (PHP) is calculated directly influences PGE (variations of PGE between 1 and 31% were found for a single sample). The empirically obtained deep-water CFs showed a 7-fold variability (0.13 to 0.85 kg C mol-1 Leu), but were always lower than the theoretical CF of 1.55 kg C mol-1 Leu assuming no isotope dilution. Empirically determined CFs were highly correlated to PGE, suggesting that both parameters are representations of the same basic metabolic processes. Overall, the PGEs obtained in this study suggest that mesopelagic prokaryotic assemblages can sometimes be as important in carbon processing as their epipelagic counterparts This research was supported by the Spanish ‘Plan Nacional de I+D’ (MEC) under the RODA (CTM2004-06842-C03-03/MAR) and CAIBEX (CTM2007-66408-C02-02) grants to J.A., a grant of the Earth and Life Science Division of the Dutch Science Foundation (ALW-NWO; ARCHIMEDES project, 835.20.023) to G.J.H., and a predoctoral Fellowship of the Spanish Ministry of Education and Science (AP2005-3932) to F.B. Projects MODIVUS (CTM2005-04795/ MAR) and STORM (CTM2009-09352/MAR) supported J.M.G. The work was carried out within the frame of the EU ‘Networks of Excellence’ MarBef, and EurOceans Peer Reviewed Article in Journal/Newspaper Northeast Atlantic Digital.CSIC (Spanish National Research Council) Aquatic Microbial Ecology 60 3 227 232 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Prokaryotic growth efficiency Leucine-to-carbon conversion factor Deep ocean |
spellingShingle |
Prokaryotic growth efficiency Leucine-to-carbon conversion factor Deep ocean Baltar, Federico Arístegui, Javier Gasol, Josep M. Herndl, Gerhard J. Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
topic_facet |
Prokaryotic growth efficiency Leucine-to-carbon conversion factor Deep ocean |
description |
6 pages, 2 figures, 3 tables Experiments were conducted in the mesopelagic subtropical northeast Atlantic Ocean to determine the range of variability in the prokaryotic leucine-to-carbon conversion factor (CF), and prokaryotic growth efficiency (PGE). The way prokaryotic heterotrophic production (PHP) is calculated directly influences PGE (variations of PGE between 1 and 31% were found for a single sample). The empirically obtained deep-water CFs showed a 7-fold variability (0.13 to 0.85 kg C mol-1 Leu), but were always lower than the theoretical CF of 1.55 kg C mol-1 Leu assuming no isotope dilution. Empirically determined CFs were highly correlated to PGE, suggesting that both parameters are representations of the same basic metabolic processes. Overall, the PGEs obtained in this study suggest that mesopelagic prokaryotic assemblages can sometimes be as important in carbon processing as their epipelagic counterparts This research was supported by the Spanish ‘Plan Nacional de I+D’ (MEC) under the RODA (CTM2004-06842-C03-03/MAR) and CAIBEX (CTM2007-66408-C02-02) grants to J.A., a grant of the Earth and Life Science Division of the Dutch Science Foundation (ALW-NWO; ARCHIMEDES project, 835.20.023) to G.J.H., and a predoctoral Fellowship of the Spanish Ministry of Education and Science (AP2005-3932) to F.B. Projects MODIVUS (CTM2005-04795/ MAR) and STORM (CTM2009-09352/MAR) supported J.M.G. The work was carried out within the frame of the EU ‘Networks of Excellence’ MarBef, and EurOceans Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Baltar, Federico Arístegui, Javier Gasol, Josep M. Herndl, Gerhard J. |
author_facet |
Baltar, Federico Arístegui, Javier Gasol, Josep M. Herndl, Gerhard J. |
author_sort |
Baltar, Federico |
title |
Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
title_short |
Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
title_full |
Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
title_fullStr |
Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
title_full_unstemmed |
Prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
title_sort |
prokaryotic carbon utilization in the dark ocean: growth efficiency, leucine-to-carbon conversion factors, and their relation |
publisher |
Inter Research |
publishDate |
2010 |
url |
http://hdl.handle.net/10261/80047 https://doi.org/10.3354/ame01422 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
https://doi.org/10.3354/ame01422 doi:10.3354/ame01422 issn: 0948-3055 e-issn: 1616-1564) Aquatic Microbial Ecology 60(3): 227-232 (2010) http://hdl.handle.net/10261/80047 |
op_rights |
open |
op_doi |
https://doi.org/10.3354/ame01422 |
container_title |
Aquatic Microbial Ecology |
container_volume |
60 |
container_issue |
3 |
container_start_page |
227 |
op_container_end_page |
232 |
_version_ |
1790605171611402240 |