The Family Salinisphaeraceae
The family Salinisphaeraceae (Class Gammaproteobacteria, Order Salinisphaerales) comprises a single genus, Salinisphaera, and six species: S. shabanensis, S. hydrothermalis, S. dokdonensis, S. orenii, S. halophila, and S. japonica. All members of the family Salinisphaeraceae were isolated from marine/oceanic and high-salinity environments. These bacteria have coccoid or short rod morphologies and are halophilic or halotolerant. All known members of the family Salinisphaeraceae are heterotrophic, mesophilic aerobes, although S. hydrothermalis was shown to be a facultative chemolithoautotroph. Isolation and characterization of new members of the Salinisphaeraceae, as well as in-depth studies of the currently known species, will allow for a better understanding of this family.
KeywordsSiderophore Production Hypersaline Environment Arsenate Reductase alkB Gene Alkane Hydroxylase
The work on Salinisphaera hydrothermalis was supported by NSF grants OCE 03-27353 and MCB 04-56676 to C. V. and by an NSF Graduate Research Fellowship to M. C. M. C.V. and M. C. M. would like to thank Aspassia Chatziefthimiou, Ramaydalis Cruz-Matos, Ileana Pérez-Rodríguez, Tamar Barkay, Richard A. Lutz, and Valentin Starovoytov for their assistance with the description of Salinisphaera hydrothermalis. Previous work on Salinisphaera shabanensis was financially supported by the Fundação para a Ciência e a Tecnologia (SFRH/BD/3170/2000), the Deutsche Forschungsgemeinschaft (DFG HU 711/2-1; HU 711/2-2; HU 711/3-1), and the Global Collaborative Research Program of the King Abdullah University of Science and Technology. A. A. would like to acknowledge the assistance of Robert Huber, Wolfgang Eder, Bernhard Schink, Intikhab Alam, Vladimir Bajic, Uli Stingl, and present and past members of the Lehrsuhl für Mikrobiologie of the University of Regensburg. Work on this chapter was supported by NSF grant OCE 11-36451 to C. V.
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