1. The Genome of Deep-Sea Vent Chemolithoautotroph Thiomicrospira crunogena XCL-2
- Author
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Scott, Kathleen M., Sievert, Stefan M., Abril, Fereniki N., Ball, Lois A., Barrett, Chantell J., Blake, Rodrigo A., Boller, Amanda J., Chain, Patrick S.G., Clark, Justine A., Davis, Carisa R., Detter, Chris, Do, Kimberly F., Dobrinski, Kimberly P., Faza, Brandon I., Fitzpatrick, Kelly A., Freyermuth, Sharyn K., Harmer, Tara L., Hauser, Loren J., Hugler, Michael, Kerfeld, Cheryl A., Klotz, Martin G., Kong, William W., Land, Miriam, Lapidus, Alla, Larimer, Frank W., Longo, Dana L., Lucas, Susan, Malfatti, Stephanie A., Massey, Steven E., Martin, Darlene D., McCuddin, Zoe, Meyer, Folker, Moore, Jessica L., Ocampo, Luis H., Paul, John H., Paulsen, Ian T., Reep, Douglas K., Ren, Qinghu, Ross, Rachel L., Sato, Priscila Y., Thomas, Phaedra, Tinkham, Lance E., and Zeruth, Gary T.
- Subjects
Basic biological sciences ,complete genome sequence - Abstract
Presented here is the complete genome sequence of Thiomicrospira crunogena XCL-2, representative of ubiquitous chemolithoautotrophic sulfur-oxidizing bacteria isolated from deep-sea hydrothermal vents. This gammaproteobacterium has a single chromosome (2,427,734 bp), and its genome illustrates many of the adaptations that have enabled it to thrive at vents globally. It has 14 methyl-accepting chemotaxis protein genes, including four that may assist in positioning it in the redoxcline. A relative abundance of CDSs encoding regulatory proteins likely control the expression of genes encoding carboxysomes, multiple dissolved inorganic nitrogen and phosphate transporters, as well as a phosphonate operon, which provide this species with a variety of options for acquiring these substrates from the environment. T. crunogena XCL-2 is unusual among obligate sulfur oxidizing bacteria in relying on the Sox system for the oxidation of reduced sulfur compounds. A 38 kb prophage is present, and a high level of prophage induction was observed, which may play a role in keeping competing populations of close relatives in check. The genome has characteristics consistent with an obligately chemolithoautotrophic lifestyle, including few transporters predicted to have organic allocrits, and Calvin-Benson-Bassham cycle CDSs scattered throughout the genome.
- Published
- 2006