Query: NC_014355:1257105 Candidatus Nitrospira defluvii, complete genome
Lineage: Nitrospira defluvii; Nitrospira; Nitrospiraceae; Nitrospirales; Nitrospirae; Bacteria
General Information: This nitrite-oxidizing bacterium was found through enrichment from activated sludge from a municipal wastewater treatment plant. Phylogenetic analysis of 16S rRNA gene sequences revealed that the enriched bacteria represented a novel Nitrospira species closely related to uncultured Nitrospira-like bacteria previously found in wastewater treatment plants and nitrifying bioreactors.
Subject: NC_009879:141000 Rickettsia canadensis str. McKiel, complete genome
Lineage: Rickettsia canadensis; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria
General Information: This organism was originally isolated from ticks in a field study on tick-transmitted diseases of small mammals in Canada. Member of the typhus group of Rickettsiales. 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. Rickettsia canadensis was originally thought to be a member of the typhus group of Rickettsiales, however, it is now thought to represent a distict group with the rickettsia.