Query: NC_014831:149626 Thermaerobacter marianensis DSM 12885 chromosome, complete genome
Lineage: Thermaerobacter marianensis; Thermaerobacter; Clostridiales Family XVII; Clostridiales; Firmicutes; Bacteria
General Information: Country: Pacific Ocean; Environment: Mud; Isolation: mud from the Challenger Deep in the Mariana; Hyperthermophile; Temp: 74-76C. Thermaerobacter marianensis was isolated from mud from the Mariana Trench in the Pacific Ocean at a depth of >10000 meters.
Subject: NC_006142:243899 Rickettsia typhi str. Wilmington, complete genome
Lineage: Rickettsia typhi; Rickettsia; Rickettsiaceae; Rickettsiales; Proteobacteria; Bacteria
General Information: This genus, like other Rickettsial organisms such as Neorickettsia and Anaplasma, is composed of obligate intracellular pathogens. The latter is composed of two organisms, Rickettsia prowazekii and Rickettsia typhi. The bacteria are transmitted via an insect, usually a tick, to a host organism, in this case humans, 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. Transovarial transmission (from mother to offspring) occurs in the invertebrate host. Rickettsia typhi causes murine typhus and is an obligate intracellular pathogen that infects both the flea vector and hosts such as human, rat, and mouse. In the flea vector, the bacterium penetrates the gut epithelial barrier and is found in the feces which become infective.