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dc.contributor.authorSievert, Stefan M.  Concept link
dc.contributor.authorVetriani, Costantino  Concept link
dc.date.accessioned2012-05-08T18:35:13Z
dc.date.available2012-05-08T18:35:13Z
dc.date.issued2012-03
dc.identifier.citationOceanography 25, no. 1 (2012): 218–233en_US
dc.identifier.urihttps://hdl.handle.net/1912/5172
dc.descriptionAuthor Posting. © The Oceanography Society, 2012. This article is posted here by permission of The Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 25, no. 1 (2012): 218–233, doi:10.5670/oceanog.2012.21.en_US
dc.description.abstractChemolithoautotrophic microorganisms are at the nexus of hydrothermal systems by effectively transferring the energy from the geothermal source to the higher trophic levels. While the validity of this conceptual framework is well established at this point, there are still significant gaps in our understanding of the microbiology and biogeochemistry of deep-sea hydrothermal systems. Important questions in this regard are: (1) How much, at what rates, and where in the system is organic carbon being produced? (2) What are the dominant autotrophs, where do they reside, and what is the relative importance of free-swimming, biofilm-forming, and symbiotic microbes? (3) Which metabolic pathways are they using to conserve energy and to fix carbon? (4) How does community-wide gene expression in fluid and biofilm communities compare? and (5) How efficiently is the energy being utilized, transformed into biomass, and transferred to higher trophic levels? In particular, there is currently a notable lack of process-oriented studies that would allow an assessment of the larger role of these ecosystems in global biogeochemical cycles. By combining the presently available powerful "omic" and single-cell tools with thermodynamic modeling, experimental approaches, and new in situ instrumentation to measure rates and concentrations, it is now possible to bring our understanding of these truly fascinating ecosystems to a new level and to place them in a quantitative framework and thus a larger global context.en_US
dc.description.sponsorshipThis review was written with support from NSF grants OCE-1136727, OCE-1038131, and OCE-1131095 (SMS) and OCE-1136451 (CV). Research mentioned in the review that was carried out in the labs of CV and SMS was supported by NSF grants MCB-0843678 (CV) and OCE-0452333 (SMS).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherThe Oceanography Societyen_US
dc.relation.urihttps://doi.org/10.5670/oceanog.2012.21
dc.titleChemoautotrophy at deep-sea vents : past, present, and futureen_US
dc.typeArticleen_US
dc.identifier.doi10.5670/oceanog.2012.21


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