Temperature dependences of growth rates and carrying capacities of marine bacteria depart from metabolic theoretical predictions

Handle URI:
http://hdl.handle.net/10754/621475
Title:
Temperature dependences of growth rates and carrying capacities of marine bacteria depart from metabolic theoretical predictions
Authors:
Huete-Stauffer, Tamara Megan; Arandia-Gorostidi, Nestor; Díaz-Pérez, Laura; Moran, Xose Anxelu G. ( 0000-0002-9823-5339 )
Abstract:
Using the metabolic theory of ecology (MTE) framework, we evaluated over a whole annual cycle the monthly responses to temperature of the growth rates (μ) and carrying capacities (K) of heterotrophic bacterioplankton at a temperate coastal site. We used experimental incubations spanning 6oC with bacterial physiological groups identified by flow cytometry according to membrane integrity (live), nucleic acid content (HNA and LNA) and respiratory activity (CTC+). The temperature dependence of μat the exponential phase of growth was summarized by the activation energy (E), which was variable (-0.52 to 0.72 eV) but followed a seasonal pattern, only reaching the hypothesized value for aerobic heterotrophs of 0.65 eV during the spring bloom for the most active bacterial groups (live, HNA, CTC+). K (i.e. maximum experimental abundance) peaked at 4 × 106 cells mL-1 and generally covaried with μbut, contrary to MTE predictions, it did not decrease consistently with temperature. In the case of live cells, the responses of μand K to temperature were positively correlated and related to seasonal changes in substrate availability, indicating that the responses of bacteria to warming are far from homogeneous and poorly explained by MTE at our site. © FEMS 2015.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Red Sea Research Center (RSRC)
Citation:
Huete-Stauffer TM, Arandia-Gorostidi N, Díaz-Pérez L, Morán XAG (2015) Temperature dependences of growth rates and carrying capacities of marine bacteria depart from metabolic theoretical predictions. FEMS Microbiology Ecology 91: fiv111. Available: http://dx.doi.org/10.1093/femsec/fiv111.
Publisher:
Oxford University Press (OUP)
Journal:
FEMS Microbiology Ecology
Issue Date:
11-Sep-2015
DOI:
10.1093/femsec/fiv111
PubMed ID:
26362925
Type:
Article
ISSN:
1574-6941
Sponsors:
This work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) through funding of the COMITE (Coastal Ocean MIcrobial plankton and Temperature) project [CTM-2010-15840] and the associated PhD scholarship [BES-2011-048573] to TM Huete-Stauffer.
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHuete-Stauffer, Tamara Meganen
dc.contributor.authorArandia-Gorostidi, Nestoren
dc.contributor.authorDíaz-Pérez, Lauraen
dc.contributor.authorMoran, Xose Anxelu G.en
dc.date.accessioned2016-11-03T08:30:15Z-
dc.date.available2016-11-03T08:30:15Z-
dc.date.issued2015-09-11en
dc.identifier.citationHuete-Stauffer TM, Arandia-Gorostidi N, Díaz-Pérez L, Morán XAG (2015) Temperature dependences of growth rates and carrying capacities of marine bacteria depart from metabolic theoretical predictions. FEMS Microbiology Ecology 91: fiv111. Available: http://dx.doi.org/10.1093/femsec/fiv111.en
dc.identifier.issn1574-6941en
dc.identifier.pmid26362925en
dc.identifier.doi10.1093/femsec/fiv111en
dc.identifier.urihttp://hdl.handle.net/10754/621475-
dc.description.abstractUsing the metabolic theory of ecology (MTE) framework, we evaluated over a whole annual cycle the monthly responses to temperature of the growth rates (μ) and carrying capacities (K) of heterotrophic bacterioplankton at a temperate coastal site. We used experimental incubations spanning 6oC with bacterial physiological groups identified by flow cytometry according to membrane integrity (live), nucleic acid content (HNA and LNA) and respiratory activity (CTC+). The temperature dependence of μat the exponential phase of growth was summarized by the activation energy (E), which was variable (-0.52 to 0.72 eV) but followed a seasonal pattern, only reaching the hypothesized value for aerobic heterotrophs of 0.65 eV during the spring bloom for the most active bacterial groups (live, HNA, CTC+). K (i.e. maximum experimental abundance) peaked at 4 × 106 cells mL-1 and generally covaried with μbut, contrary to MTE predictions, it did not decrease consistently with temperature. In the case of live cells, the responses of μand K to temperature were positively correlated and related to seasonal changes in substrate availability, indicating that the responses of bacteria to warming are far from homogeneous and poorly explained by MTE at our site. © FEMS 2015.en
dc.description.sponsorshipThis work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) through funding of the COMITE (Coastal Ocean MIcrobial plankton and Temperature) project [CTM-2010-15840] and the associated PhD scholarship [BES-2011-048573] to TM Huete-Stauffer.en
dc.publisherOxford University Press (OUP)en
dc.subjectActivation energyen
dc.subjectCarrying capacityen
dc.subjectCoastal oceanen
dc.subjectFlow cytometryen
dc.subjectMarine bacteriaen
dc.subjectMetabolic theory of ecologyen
dc.titleTemperature dependences of growth rates and carrying capacities of marine bacteria depart from metabolic theoretical predictionsen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalFEMS Microbiology Ecologyen
dc.contributor.institutionCentro Oceanográfico de Gijón/Xixón, Instituto Español de Oceanografía, Gijón/Xixón, Asturias, Spainen
kaust.authorMoran, Xose Anxelu G.en

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