Query: NC_009715:873280 Campylobacter curvus 525.92 chromosome, complete genome Lineage: Campylobacter curvus; Campylobacter; Campylobacteraceae; Campylobacterales; Proteobacteria; Bacteria General Information: Gastrointestinal clinical isolate. Members of this genus are one of the most common causes of bacterial gastroenteritis (campylobacteriosis). Members of this genus are one of the most common causes of bacterial gastroenteritis (campylobacteriosis). Usually the symptoms are abdominal pain, fever, diarrhea, and cramps, but the illness can sometimes be fatal and some infected individuals develop a syndrome (Guillain-Barre) in which the nerves connecting the spinal cord to the brain are damaged. C. jejuni is the main cause of campylobacteriosis, but other species can also cause infection, including C. coli, C. upsaliensis, and C. curvus.Campylobacter curvus.This species was originally isolated from the human oral cavity in cases of gingivitis; however the role it plays in periodontal disease is unclear. This organism has also been isolated from cases of gastrointestinal disease, and occassionally from abscesses.
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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.