Show simple item record

dc.contributor.authorEdgcomb, Virginia P.  Concept link
dc.contributor.authorMolyneaux, Stephen J.  Concept link
dc.contributor.authorSaito, Mak A.  Concept link
dc.contributor.authorLloyd, Karen G.  Concept link
dc.contributor.authorBoer, Simone  Concept link
dc.contributor.authorWirsen, Carl O.  Concept link
dc.contributor.authorAtkins, Michael S.  Concept link
dc.contributor.authorTeske, Andreas  Concept link
dc.date.accessioned2005-11-23T19:25:58Z
dc.date.available2005-11-23T19:25:58Z
dc.date.issued2004-04
dc.identifier.citationApplied and Environmental Microbiology 70 (2004): 2551-2555en
dc.identifier.urihttps://hdl.handle.net/1912/189
dc.descriptionAuthor Posting. © American Society for Microbiology, 2004. This article is posted here by permission of American Society for Microbiology for personal use, not for redistribution. The definitive version was published in Applied and Environmental Microbiology 70 (2004): 2551-2555, doi:10.1128/AEM.70.4.2551-2555.2004.
dc.description.abstractThe chemical stress factors for microbial life at deep-sea hydrothermal vents include high concentrations of heavy metals and sulfide. Three hyperthermophilic vent archaea, the sulfur-reducing heterotrophs Thermococcus fumicolans and Pyrococcus strain GB-D and the chemolithoautotrophic methanogen Methanocaldococcus jannaschii, were tested for survival tolerance to heavy metals (Zn, Co, and Cu) and sulfide. The sulfide addition consistently ameliorated the high toxicity of free metal cations by the formation of dissolved metal-sulfide complexes as well as solid precipitates. Thus, chemical speciation of heavy metals with sulfide allows hydrothermal vent archaea to tolerate otherwise toxic metal concentrations in their natural environment.en
dc.description.sponsorshipThis work was supported by the National Science Foundation (Life in Extreme Environments [LExEn] grant OCE-0085534 to A.T., S.J.M., K.L, S.B., and C.O.W.), an NSF Postdoctoral Fellowship in Microbial Biology (M.S.A.), the MBL (Environmental Genomes, S/C NCC2-1054) and URI (Subsurface Biospheres) NASA Astrobiology Institute Teams (A.T. and S.J.M.), an NRC Astrobiology postdoctoral fellowship (V.P.E.), and a Princeton Harry Hess postdoctoral fellowship (M.A.S.).en
dc.format.extent1020522 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherAmerican Society for Microbiologyen
dc.relation.urihttps://doi.org/10.1128/AEM.70.4.2551-2555.2004
dc.subjectThermococcus fumicolansen
dc.subjectPyrococcusen
dc.subjectMethanocaldococcus jannaschiien
dc.subjectHeavy metalsen
dc.titleSulfide ameliorates metal toxicity for deep-sea hydrothermal vent archaeaen
dc.typeArticleen
dc.identifier.doi10.1128/AEM.70.4.2551-2555.2004


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record