Query: NC_008346:410940 Syntrophomonas wolfei subsp. wolfei str. Goettingen, complete
Lineage: Syntrophomonas wolfei; Syntrophomonas; Syntrophomonadaceae; Clostridiales; Firmicutes; Bacteria
General Information: Syntrophomonas wolfeisubsp. wolfei str. Goettingen (DSM 2245B) was isolated from anaerobic digestor sludge. Fatty acid-oxidizing bacterium. This organism is an anaerobic syntrophic fatty acid-oxidizing bacterium. It is the only bacterium known to produce energy from anaerobic degradation of saturated four to eight carbon fatty acids with protons serving as the electron acceptor. The cells have an unusual multilayered gram-negative cell wall. Syntrophomonas wolfei grows in coculture with Methanospirillum hungatei and can be isolated from anaerobic environments such as aquatic sediment or sewage digestor sludge.
Subject: NC_011961:528837 Thermomicrobium roseum DSM 5159 plasmid unnamed, complete sequence
Lineage: Thermomicrobium roseum; Thermomicrobium; Thermomicrobiaceae; Thermomicrobiales; Chloroflexi; Bacteria
General Information: Thermomicrobium roseum DSM 5159 was isolated from Yellowstone National Park, USA. Obligate thermophile with unusual cell wall structure. Thermomicrobium roseum is a red-pigmented, rod-shaped, Gram-negative extreme thermophile that possesses both an atypical cell wall composition and an unusual cell membrane that is composed entirely of long-chain 1,2-diols. Analyses of environmental sequences from hot spring environments show that T.roseum displays a low quantity but ubiquitous presence in top layers of microbial mats. Few standard housekeeping genes are found on the megaplasmid, however, it does encode a complete system for chemotaxis including both chemosensory components and an entire flagellar apparatus. T. roseum oxidizes CO aerobically, making it the first thermophile known to do so. In addition, is is propose that glycosylation of its carotenoids plays a crucial role in the adaptation of the cell membrane to this bacterium's thermophilic lifestyle. Because T. roseum is a deep-branching member of this phylum, eventhough this species is not photosynthetic, analysis of the genome provides some insight into the origins of photosynthesis in the Chloroflexi.