Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/50862
DC FieldValueLanguage
dc.contributor.authorRoy, Sylvie O.en_US
dc.contributor.authorPackard, Ted T.en_US
dc.contributor.authorBerdalet, Elisaen_US
dc.contributor.authorSt-Amand, Lilianeen_US
dc.date.accessioned2018-11-24T19:27:50Z-
dc.date.available2018-11-24T19:27:50Z-
dc.date.issued1999en_US
dc.identifier.issn0948-3055en_US
dc.identifier.urihttp://hdl.handle.net/10553/50862-
dc.description.abstractPhysiological rates of CO2 production and O2 consumption, and the activities of isocitrate dehydrogenase (IDH) and the electron transfer system (ETS) were studied in the marine bacterium Pseudomonas nautica growing on acetate. In exponential growth, IDH and ETS activities were well coupled with CO2 production and O2 consumption rates, but in senescence they were uncoupled. Our results clearly show that under starvation conditions, IDH and ETS activities remained high even though their corresponding respiration rates dropped. The respiratory metabolism in the different physiological states of the acetate-grown cultures was compared with previous observations made in pyruvate-grown cultures. Time profiles of CO2 production and O2 consumption rates showed completely different respiratory fingerprints associated with the different carbon sources. Acetate-grown cultures showed an increase of respiratory quotients (RQ) in the senescence phase whereas in pyruvate-grown cultures it stayed close to 1.0. On both carbon sources, respiration to respiratory capacity ratios were constant in exponential phase and decreased to almost zero after carbon source exhaustion. Our results clearly show the impact of physiological state and carbon sources on bacterial respiration ratesen_US
dc.languageengen_US
dc.publisher0948-3055
dc.relation.ispartofAquatic Microbial Ecologyen_US
dc.sourceAquatic Microbial Ecology [ISSN 0948-3055], v. 17, p. 105-110en_US
dc.subject251001 Oceanografía biológicaen_US
dc.subject.otherCO2 production ratesen_US
dc.subject.otherO2 consumption ratesen_US
dc.subject.otherIsocitrate dehydrogenaseen_US
dc.subject.otherRespiratory electron transfer systemen_US
dc.subject.otherETSen_US
dc.subject.otherMarine bacteriumen_US
dc.titleImpact of acetate, pyruvate, and physiological state on respiration and respiratory quotients in Pseudomonas nauticaen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.typeArticleen_US
dc.identifier.doi10.3354/ame017105en_US
dc.identifier.scopus0033022589-
dc.contributor.authorscopusid8923658500-
dc.contributor.authorscopusid7004249480-
dc.contributor.authorscopusid55975291500-
dc.contributor.authorscopusid56636766200-
dc.description.lastpage110-
dc.description.firstpage105-
dc.relation.volume17-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.utils.revisionen_US
dc.identifier.ulpgces
dc.description.jcr2,676
dc.description.jcrqQ1
dc.description.scieSCIE
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.author.orcid0000-0002-5880-1199-
crisitem.author.fullNamePackard, Theodore Train-
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