Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/51636
Título: Prokaryotic carbon utilization in the dark ocean: Growth efficiency, leucine-to-carbon conversion factors, and their relation
Autores/as: Baltar, Federico
Aristegui, Javier 
Gasol, Josep M.
Herndl, Gerhard J.
Clasificación UNESCO: 251001 Oceanografía biológica
Palabras clave: Prokaryotic growth efficiency
Leucine-to-carbon conversion factor
Deep ocean
Fecha de publicación: 2010
Editor/a: 0948-3055
Proyectos: Remolinos Oceanicos y de Posición Atmosferica (Roda): Dinámica y Monitorización de Remolinos Oceanicos en la Corriente de Canarias 
Intercambio Plataforma-Oceano en El Ecosistema Marino de Las Islas Canarias-Peninsula Iberica (Caibex):Afloramiento de Cabo Guir 
Publicación seriada: Aquatic Microbial Ecology 
Resumen: 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
URI: http://hdl.handle.net/10553/51636
ISSN: 0948-3055
DOI: 10.3354/ame01422
Fuente: Aquatic Microbial Ecology [ISSN 0948-3055], v. 60 (3), p. 227-232
Colección:Artículos
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