Query: NC_012982:2415237 Hirschia baltica ATCC 49814, complete genome Lineage: Hirschia baltica; Hirschia; Hyphomonadaceae; Rhodobacterales; Proteobacteria; Bacteria General Information: Temp: Mesophile; Habitat: Marine. Strain IFAM 1418 (ATCC 49814) was isolated from the top 5cm of water in Kiel Fjord on the Baltic Sea, Germany in October 1982 and is the type strain for this species. Hirschia baltica has a biphasic life style, which consists of a motile phase of flagellated swarmer cells and a cessile phase in which a long prosthecate is produced at one end of the bacteria through which budding cells emerge. Newly budded cells in turn produce flagella and go through a motile phase and the cycle continues. These organisms can colonize the surfaces of marine environments which enables additional species to colonize at later stages.
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General Information: Obligately chemolithoautotrophic, haloalkaliphilic, mesophilic, microaerophilic and sulfur-oxidizing bacterium. Uses CO2 as a carbon source and reduced inorganic sulfur compounds as an energy source. Utilizes ammonium and urea, but not nitrate or nitrite, as a N-source. Isolated from a full-scale Thiopaq bioreactor in the Netherlands used to remove H2S from biogas. Thioalkalivibrio species are commonly isolated from soda lakes and tend to dominate the microbial community of hypersaline soda lakes. These organisms have a pH optimum of 10 and are able to oxidize hydrogen sulfide to elemental sulfur. Thioalkalivibrio species have also been isolated from sulfide oxidizing bioreactors which remove sulfide from refinery and natural gas.