Query: NC_013943:382807 Denitrovibrio acetiphilus DSM 12809 chromosome, complete genome
Lineage: Denitrovibrio acetiphilus; Denitrovibrio; Deferribacteraceae; Deferribacterales; Deferribacteres; Bacteria
General Information: Isolation: Oil reservoir model column; Country: Norway; Temp: Mesophile; Habitat: Fresh water, Marine. This organism was first isolated from an oil reservoir modeling column under nitrate enrichment and reduces nitrate to ammonia. Stimulating the growth of nitrate-reducing bacterium in an oil well may prevent the growth of sulfate-reducing bacterium which cause reservoir souring by the production of H2S.
Subject: NC_012633:169444 Rickettsia africae ESF-5, complete genome
Lineage: Rickettsia africae; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria
General Information: This organism was isolated from a cattle tick, Amblyomma variegatum, collected in Ethiopia. This organism, a member of the spotted fever group of the Rickettsiales, is found in sub-Saharan Africa and the Caribbean. Rickettsia africae causes a flu-like illness, characterized by a mild fever and severe headache, without the skin rash common to other spotted fever group Rickettsia species. Members of this genus, like other Rickettsial organisms such as Neorickettsia and Anaplasma, are obligate intracellular pathogens. In both groups, the bacteria are transmitted via an insect, usually a tick, to a host organism where they target endothelial cells and sometimes macrophages. They attach via an adhesin, rickettsial outer membrane protein A, and are internalized where they persist as cytoplasmically free organisms.