Query: NC_016114:3439273 Streptomyces flavogriseus ATCC 33331 chromosome, complete genome Lineage: Streptomyces pratensis; Streptomyces; Streptomycetaceae; Actinomycetales; Actinobacteria; Bacteria General Information: Environment: Soil; Isolation: Soil; Temp: Mesophile. The genus Streptomyces consists of soil and water Gram positive filamentous bacteria well known for their ability to produce complex secondary metabolites including many antibiotics. Additionally they undergo complex multicellular development, with spores germinating to form a branched, multinucleoid substrate mycelium, which then produces an aerial mycelium which septates into uninucleoid spores. Streptomyces flavogriseus is an aerobic, Gram-positive bacterium isolated from soil. This organism produces cellulases and xyanases that are able to degrade cellulose and xylan.
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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.