Query: NC_016745:2229271 Oceanimonas sp. GK1 chromosome, complete genome Lineage: Oceanimonas; Oceanimonas; Aeromonadaceae; Aeromonadales; Proteobacteria; Bacteria General Information: Oceanimonas sp. (strain GK1) is an aerobic, marine halotolerant, Gram-negative bacterium isolated from Gavkhouni Wetland in Iran. It is a motile bacterium which can tolerate up to 12% NaCl. It grows at tempatures between 10 to 45 degrees C with an optimum at 35 degrees C and at pH between 6 to 10 with an optimum at 8. Oceanimonas sp. produces large amounts of poly-hydroxybutyrate (PHB) as a carbon and energy reservoir under unbalanced growth conditions. PHB is a biodegradable and renewable biosynthetic polymer which can be used in medicine, tissue engineering, and packaging materials.
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General Information: This organism was first isolated from the soil in Vineland, New Jersey, although it is found worldwide. It is a large obligate aerobe that has one of the highest respiratory rates of any organism. Azotobacter vinelandii also produces a number of unusual nitrogenases which allow it to fix atmospheric nitrogen to ammonia, a compound it can then use as a nitrogen source. It protects the oxygen-sensitive nitrogenase enzymes through its high respiratory rate, which sequesters the nitrogenase complexes in an anoxic environment. This organism has a number of unusual characteristics. Under extreme environmental conditions, the cell will produce a cyst that is resistant to dessication and is surrounded by two capsular polysaccharide layers. This organism produces two industrially important polysaccharides, poly-beta-hydroxybutyrate (PHB) and alginate. PHB is a thermoplastic biopolymer, and alginate is used in the food industry. Alginate is also used by the pathogen Pseudomonas aeruginosa to infect the lungs of cystic fibrosis patients.