| Listeria newyorkensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Listeriaceae, Genus Listeria, Listeria newyorkensis Weller et al. 2015.
Gram-positive, straight rods. Not acid-fast. Capsule is not formed. Spores are not
produced. Non-motile at 4, 22, 30 or 37 ºC.
produced. Non-motile at 4, 22, 30 or 37 ºC.
Colonies are opaque, white with a flat shape and entire margin on BHI and L.
monocytogenes plating media (LMPM). On LMPM there is no blue halo. On Modified
Oxford agar (MOX) colonies are convex and pewter. Optimum growth temperature is
30-37 ºC, range 4-41 ºC. Hemolysis is not produced. Aerobic and facultative
anaerobic. Grows well on BHI agar.
monocytogenes plating media (LMPM). On LMPM there is no blue halo. On Modified
Oxford agar (MOX) colonies are convex and pewter. Optimum growth temperature is
30-37 ºC, range 4-41 ºC. Hemolysis is not produced. Aerobic and facultative
anaerobic. Grows well on BHI agar.
Isolated from a nonfood-contact surface in a dairy processing plant, in USA.
Undetermined.
- Weller D, Andrus A, Wiedmann M, den Bakker H. 2015. Listeria booriae sp. nov. and Listeria newyorkensis sp. nov., from food
processing environments in the USA. Int J Syst Evol Microbiol 65(1):286-292.
Some characters were determined using API Listeria (numerical profiles 2330 & 2730)
and API 50 CHB/E kits.
Positive results for catalase, methyl red test, nitrate reduction (no nitrite reduction), acid production from: aesculin ferric citrate,
N-acetylglucosamine, amygdalin, arbutin, L-arabinose, cellobiose, D-fructose, D-galactose, methyl alpha-D-glucoside, D-glucose,
glycerol, lactose, maltose, D-mannitol, D-mannose, D-ribose, salicin D-xylose
Negative results for arylamidase, alpha-mannosidase, Voges-Proskauer test, acid production from: D-arabinose, D-arabitol,
D-adonitol, L-fucose, glycogen, glucose 1-phosphate, gluconate, 2- and 5-ketogluconate, inositol, inulin, D-lyxose, melezitose,
melibiose, methyl alpha-D-mannopyranoside, raffinose, L-sorbose, sucrose, D-tagatose, turanose & methyl beta-D-xylopyranoside.
Variable results for acid production from L-rhamnose.
and API 50 CHB/E kits.
Positive results for catalase, methyl red test, nitrate reduction (no nitrite reduction), acid production from: aesculin ferric citrate,
N-acetylglucosamine, amygdalin, arbutin, L-arabinose, cellobiose, D-fructose, D-galactose, methyl alpha-D-glucoside, D-glucose,
glycerol, lactose, maltose, D-mannitol, D-mannose, D-ribose, salicin D-xylose
Negative results for arylamidase, alpha-mannosidase, Voges-Proskauer test, acid production from: D-arabinose, D-arabitol,
D-adonitol, L-fucose, glycogen, glucose 1-phosphate, gluconate, 2- and 5-ketogluconate, inositol, inulin, D-lyxose, melezitose,
melibiose, methyl alpha-D-mannopyranoside, raffinose, L-sorbose, sucrose, D-tagatose, turanose & methyl beta-D-xylopyranoside.
Variable results for acid production from L-rhamnose.
(c) Costin Stoica
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