Geoalkalibacter subterraneus

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Classification

Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales; Geobacteraceae

Species

Geoalkalibacter subterraneus

Description and Significance

Describe the appearance, habitat, etc. of the organism, and why you think it is important.

Geoalkalibacter subterraneus is a gram-negative motile rod with polar flagella. G. subterraneus does not form spores. cells range in length 1.0-5.0µm, and diameter .5-.6µm. Representative strain RedT1 was isolated from Redwash oilfield Utah, USA.

DESCRIPTION

Genome Structure

Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence?

Geoalkalibacter subterraneus has one circular chromosome and one plasmid, both have been completely sequenced for strain Red1T[1] The chromosome contains 3.48Mb, 3287 genes and 3202 coding genes. The plasmid contains 242Kb, 258 genes and 256 coding genes.

Cell Structure, Metabolism and Life Cycle

Interesting features of cell structure; how it gains energy; what important molecules it produces.

G. subterraneus is strictly anaerobic. It obtains energy by reducing Fe(III), Mn(IV), nitrate, elemental sulfur and trimethylamine N-oxide. G. subterraneus grows optimally at 40°C and pH 7.

Ecology and Pathogenesis

Habitat; symbiosis; biogeochemical significance; contributions to environment.
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.

References

Greene, A., Patel, B., and Yacob, S. "Geoalkalibacter subterraneus sp. nov., an anaerobic Fe(III) and Mn(IV) reducing bacterium from a petroleum reservoir, and emended descriptions of the family Desulfuromonadaceae and the genus Geoalkalibacter." International Journal of Systematic and Evolutionary Microbiology. 2009. Volume 59. p. 781–785

Author

Page authored by Luke Pryke and Hannah Pak, students of Prof. Jay Lennon at Indiana University.