Query: NC_015713:2453409 Simkania negevensis Z chromosome gsn.131, complete genome Lineage: Simkania negevensis; Simkania; Simkaniaceae; Chlamydiales; Chlamydiae; Bacteria General Information: This bacterium is named after Simona Kahane who discovered the organism as a contaminant in cell cultures at Ber Sheva, in the Negev Desert, Israel, in 1993. Simkania negevensis is a member of the order Chlamydiales and can reside intracellularly and has a slow prolonged developmental cycle. It has a wide geographical and environmental distribution and is associated with pneumonia, bronchiolitis and chronic obstructive pulmonary disease, furthermore, it is completely resistant to penicillin and to bacitracin. The natural hosts of Simkania negevensis bacteria might be amoebae.
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General Information: The original was isolated from an inflected cauliflower in Sussex, United Kingdom, in 1958. Strain 8004 is a spontaneous rifampicin resistant strain. Causes black rot disease in crucifers. These organisms are almost exclusively found associated with their plant hosts and are not found free in the soil. This species is a major cause of black rot in crucifers, a disease that results in massive tissue degeneration. It also produces an extracellular polysaccharide known as xanthan, which is harvested commercially as a food stabilizing agent for use in industry.