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American Society for Microbiology, Applied and Environmental Microbiology, 7(75), p. 1950-1960, 2009

DOI: 10.1128/aem.02614-08

American Society for Microbiology, Applied and Environmental Microbiology, 16(75), p. 5437-5437, 2009

DOI: 10.1128/aem.01433-09

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Ecophysiology of “ Halarsenatibacter silvermanii ” Strain SLAS-1 <sup>T</sup> , gen. nov., sp. nov., a Facultative Chemoautotrophic Arsenate Respirer from Salt-Saturated Searles Lake, California

Journal article published in 2009 by Jodi Switzer Blum, Sukkyun Han, Brian Lanoil ORCID, Chad Saltikov, Brian Witte, F. Robert Tabita, Sean Langley, Terry J. Beveridge, Linda Jahnke, Ronald S. Oremland
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

ABSTRACT Searles Lake occupies a closed basin harboring salt-saturated, alkaline brines that have exceptionally high concentrations of arsenic oxyanions. Strain SLAS-1 T was previously isolated from Searles Lake (R. S. Oremland, T. R. Kulp, J. Switzer Blum, S. E. Hoeft, S. Baesman, L. G. Miller, and J. F. Stolz, Science 308:1305-1308, 2005). We now describe this extremophile with regard to its substrate affinities, its unusual mode of motility, sequenced arrABD gene cluster, cell envelope lipids, and its phylogenetic alignment within the order Halanaerobacteriales , assigning it the name “ Halarsenatibacter silvermanii ” strain SLAS-1 T . We also report on the substrate dynamics of an anaerobic enrichment culture obtained from Searles Lake that grows under conditions of salt saturation and whose members include a novel sulfate reducer of the order Desulfovibriales , the archaeon Halorhabdus utahensis , as well as a close homolog of strain SLAS-1 T .