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dc.contributor.authorFrank, Kiana Len_US
dc.contributor.authorRogers, Daniel Ren_US
dc.contributor.authorOlins, Heather Cen_US
dc.contributor.authorVidoudez, Charlesen_US
dc.contributor.authorGirguis, Peter Ren_US
dc.date.accessioned2014-02-18T18:11:15Z
dc.date.issued2013en_US
dc.identifier.citationFrank, Kiana L, Daniel R Rogers, Heather C Olins, Charles Vidoudez, and Peter R Girguis. 2013. “Characterizing the distribution and rates of microbial sulfate reduction at Middle Valley hydrothermal vents.” The ISME Journal 7 (7): 1391-1401. doi:10.1038/ismej.2013.17. http://dx.doi.org/10.1038/ismej.2013.17.en
dc.identifier.issn1751-7362en
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:11717556
dc.description.abstractFew studies have directly measured sulfate reduction at hydrothermal vents, and relatively little is known about how environmental or ecological factors influence rates of sulfate reduction in vent environments. A better understanding of microbially mediated sulfate reduction in hydrothermal vent ecosystems may be achieved by integrating ecological and geochemical data with metabolic rate measurements. Here we present rates of microbially mediated sulfate reduction from three distinct hydrothermal vents in the Middle Valley vent field along the Juan de Fuca Ridge, as well as assessments of bacterial and archaeal diversity, estimates of total biomass and the abundance of functional genes related to sulfate reduction, and in situ geochemistry. Maximum rates of sulfate reduction occurred at 90 °C in all three deposits. Pyrosequencing and functional gene abundance data revealed differences in both biomass and community composition among sites, including differences in the abundance of known sulfate-reducing bacteria. The abundance of sequences for Thermodesulfovibro-like organisms and higher sulfate reduction rates at elevated temperatures suggests that Thermodesulfovibro-like organisms may have a role in sulfate reduction in warmer environments. The rates of sulfate reduction presented here suggest that—within anaerobic niches of hydrothermal deposits—heterotrophic sulfate reduction may be quite common and might contribute substantially to secondary productivity, underscoring the potential role of this process in both sulfur and carbon cycling at vents.en
dc.language.isoen_USen
dc.publisherNature Publishing Groupen
dc.relation.isversionofdoi:10.1038/ismej.2013.17en
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3695286/pdf/en
dash.licenseLAAen_US
dc.subjecthydrothermal venten
dc.subjectmicrobial ecologyen
dc.subjectprimary productivityen
dc.subjectsulfate reductionen
dc.titleCharacterizing the distribution and rates of microbial sulfate reduction at Middle Valley hydrothermal ventsen
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden
dc.relation.journalThe ISME Journalen
dash.depositing.authorRogers, Daniel Ren_US
dc.date.available2014-02-18T18:11:15Z
dc.identifier.doi10.1038/ismej.2013.17*
dash.contributor.affiliatedRogers, Daniel R.
dash.contributor.affiliatedOlins, Heather
dash.contributor.affiliatedGirguis, Peter
dash.contributor.affiliatedVidoudez, Charles
dc.identifier.orcid0000-0002-9176-3569


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