| Kosakonia cowanii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae, Genus Kosakonia,
Kosakonia cowanii (Inoue et al. 2001) Brady et al. 2013, type species of the genus.
Old synonym: Enterobacter cowanii Inoue et al. 2001.
Kosakonia cowanii (Inoue et al. 2001) Brady et al. 2013, type species of the genus.
Old synonym: Enterobacter cowanii Inoue et al. 2001.
Gram-negative rods. Motile by peritrichous flagella (most strains).
Grows well on MacConkey agar and other media at 25-37 ºC. Can grow at 42 ºC, but
not at 4 ºC. Facultatively anaerobic. Can grow on KCN. Colonies may be
yellow-pigmented.
not at 4 ºC. Facultatively anaerobic. Can grow on KCN. Colonies may be
yellow-pigmented.
Isolated from human clinical specimens (urine, sputum, blood, and pus).
Undetermined.
- Inoue K, Sugiyama K, Kosako Y, Sakazaki R, Yamai S. Enterobacter cowanii sp. nov., a new species of the family
Enterobacteriaceae. Curr Microbiol 2000; 41:417-420. - Brady C, Cleenwerck I, Venter S, Coutinho T, De Vos P. Taxonomic evaluation of the genus Enterobacter based on multilocus
sequence analysis (MLSA): proposal to reclassify E. nimipressuralis and E. amnigenus into Lelliottia gen. nov. as Lelliottia
nimipressuralis comb. nov. and Lelliottia amnigena comb. nov., respectively, E. gergoviae and E. pyrinus into Pluralibacter gen.
nov. as Pluralibacter gergoviae comb. nov. and Pluralibacter pyrinus comb. nov., respectively, E. cowanii, E. radicincitans, E.
oryzae and E. arachidis into Kosakonia gen. nov. as Kosakonia cowanii comb. nov., Kosakonia radicincitans comb. nov.,
Kosakonia oryzae comb. nov. and Kosakonia arachidis comb. nov., respectively, and E. turicensis, E. helveticus and E. pulveris
into Cronobacter as Cronobacter zurichensis nom. nov., Cronobacter helveticus comb. nov. and Cronobacter pulveris comb. nov.,
respectively, and emended description of the genera Enterobacter and Cronobacter. Syst Appl Microbiol 2013; 36:309-319. - Wang C, Wu W, Wei L, Feng Y, Kang M, Xie Y, Zong Z. Kosakonia quasisacchari sp. nov. recovered from human wound secretion
in China. Int J Syst Evol Microbiol 2019; 69:3164-3169.
Positive results for acetate utilization, citrate (Simmons/Christensen), esculin hydrolysis, beta-galactosidase, nitrate reduction,
D-tartrate utilization, Voges-Proskauer test, beta-xylosidase, acid production from L-arabinose, cellobiose, dulcitol, fructose,
galactose, glucose (with gas production), glycerol, beta-gentiobiose, 2-ketogluconate, lactose, maltose, mannitol, mannose,
melibiose, raffinose, rhamnose, ribose, salicin, sorbitol, sucrose, trehalose, and D-xylose.
Negative results for arginine dihydrolase, DNase, gelatinase, beta-glucuronidase, H2S production, indole production, lysine
decarboxylase, malonate utilization, methyl red test, ornithine decarboxylase, oxidase, L-pyrrolidonyl aminopeptidase, pectinase,
phenylalanine deaminase, Tween 80 esterase, urease, acid production from adonitol, D- and L-arabitol, L-arabinose, erythritol, D-
and L-fucose, meso-inositol, melezitose, mucate, alpha-methyl-D-glucoside, sorbose, tagatose, turanose, L-xylose and xylitol.
Variable acid production from lyxose.
D-tartrate utilization, Voges-Proskauer test, beta-xylosidase, acid production from L-arabinose, cellobiose, dulcitol, fructose,
galactose, glucose (with gas production), glycerol, beta-gentiobiose, 2-ketogluconate, lactose, maltose, mannitol, mannose,
melibiose, raffinose, rhamnose, ribose, salicin, sorbitol, sucrose, trehalose, and D-xylose.
Negative results for arginine dihydrolase, DNase, gelatinase, beta-glucuronidase, H2S production, indole production, lysine
decarboxylase, malonate utilization, methyl red test, ornithine decarboxylase, oxidase, L-pyrrolidonyl aminopeptidase, pectinase,
phenylalanine deaminase, Tween 80 esterase, urease, acid production from adonitol, D- and L-arabitol, L-arabinose, erythritol, D-
and L-fucose, meso-inositol, melezitose, mucate, alpha-methyl-D-glucoside, sorbose, tagatose, turanose, L-xylose and xylitol.
Variable acid production from lyxose.
(c) Costin Stoica
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