? Citrobacter
Citrobacter freundii
Scientific classification
Kingdom: Bacteria Phylum: Proteobacteria Class: Gamma Proteobacteria Order: Enterobacteriales Family: Enterobacteriaceae Genus: Citrobacter Werkman and Gillen, 1932
Species
C. amalonaticus C. braakii C. farmeri C. freundii C. gillenii C. intermedius C. koseriaka C. diversus C. murliniae C. rodentium C. sedlakii C. werkmanii C. youngae

Citrobacter is a genus of gram-negative bacteria in the family of the Enterobacteriaceae. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Subgroups Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular: bacterium) are a major group of living organisms. ... Orders Alpha Proteobacteria    Caulobacterales - e. ... Orders Alpha Proteobacteria    Caulobacterales - e. ... Genera see text The Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli. ... Genera see text The Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli. ... See genus (mathematics) for the use of the term in mathematics. ... Bacteria that are Gram-negative are not stained dark blue or violet by Gram staining, in contrast to Gram-positive bacteria. ... Subgroups Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular: bacterium) are a major group of living organisms. ... In biological classification, family (Latin: familia, plural familiae) is 1) a rank or 2) a taxon in that rank. ... Genera see text The Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli. ...

The species C. amalonaticus, C. koseri, and C. freundii use solely citrate as a carbon source. These bacteria can be found almost everywhere in soil, water, wastewater, etc. It can also be found in the human intestine. They are rarely the source of illnesses, except for infections of the urinary tract and infant meningitis. In biology, a species is a kind of organism. ... Chemical strucutre of citric acid. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... Soil is the material on the surface of a lithosphere subject to weathering, and especially the earthy portion of that material. ... Water (from the Old English waeter; c. ... Wastewater is any water that has been adversely affected in quality by any anthropogenic influence. ... Trinomial name Homo sapiens sapiens Linnaeus, 1758 Humans, or human beings, are biologically classified as bipedal primates belonging to the mammalian species Homo sapiens (Latin for wise man or thinking man) under the family Hominidae (the great apes). ... The intestine is the portion of the alimentary canal extending from the stomach to the anus and, in humans and other mammals, consists of two segments, the small intestine and the large intestine. ... The urinary system is a system of organs, tubes, muscles, and nerves that work together to create, store, and carry, urine. ... An infant Infant is a slightly more formal word for baby, the youngest category of child. ... Meningitis is inflammation of the membranes (meninges) covering the brain and the spinal cord. ...

References

• This article is based on a translation of an article from the German Wikipedia.
• German National Resource Centre for Biological Material