Genus Listeria
Pirie 1940
Gram-positive short rods, nonspore-forming, noncapsulated, motile when cultured below
30 ºC; aerobe and facultative anaerobic, temperature limits of growth 0 to 45 ºC, acid
produced from some carbohydrates (no gas from glucose), catalase positive, oxidase
negative, methyl-red positive, Voges-Proskauer usually positive, indole and H
2S are not
produced, urea is not hydrolysed, organic growth factors are required.
(c) Costin Stoica
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* marked species are not included in
ABIS biochemical database
Genus Brochothrix
Sneath and Jones 1976
NOTE

According to Rocourt et al. 1992,
Listeria murrayi Welshimer and Meredith
1971 is a later heterotypic synonym of
Listeria grayi Errebo Larsen and
Seeliger 1966
Gram-positive rods, nonspore-forming, noncapsulated, nonmotile, aerobic &
facultative anaerobic, temperature limits 0 to 30 ºC, acid produced from
some carbohydrates (no gas from glucose), catalase positive, oxidase
negative, methyl-red positive, indole not produced.