Lactococcus piscium
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Lactococcus, Lactococcus piscium
Williams et al. 1990.
Gram-positive short rods to ovoid cells, grouped mostly in pairs or short chains.
Nonmotile. Endospores are not formed.
Grows at 5 ºC and 30 ºC; no growth at 40 ºC. Facultatively anaerobic. No growth in 4%
NaCl medium.
Isolated from salmonid fish and vacuum-packaged refrigerated beef in Japan
Meat spoilage bacterium. The type strain was isolated from a diseased rainbow trout.
  1. Michael Teuber, 2009. Genus II. Lactococcus Schleifer, Kraus, Dvorak, Kilpper-Balz, Collins and Fischer 1986, 354 VP. In: (Eds.) P.
    D. Vos, G. Garrity, D. Jones, N.R. Krieg, W. Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic
    Bacteriology, Volume 3: The Firmicutes, Springer, 711-722.
  2. Sakala RM, Hayashidani H, Kato Y, Kaneuchi C, Ogawa M. Isolation and characterization of Lactococcus piscium strains from
    vacuum-packaged refrigerated beef. J Appl Microbiol. 2002;92(1):173-9.
Positive results for esculin hydrolysis, starch hydrolysis (weak and slow reaction), acid
production from: amygdalin, L-arabinose, arbutin, N-acetylglucosamine, cellobiose,
D-fructose, galactose, beta-gentiobiose, gluconate, glucose, lactose, maltose,D-
mannose, mannitol, melibiose, melezitose, alpha-methyl-D-glucoside, alpha-methyl-D-mannoside, D-raffinose, ribose, salicin,
sucrose, trehalose, D-turanose, and D-xylose.

Negative results for arginine dehydrolase, catalase, H
2S production, hippurate hydrolysis, pyrrolidonylarylamidase, urea hydrolysis,
acid production from: adonitol, D-arabinose, D- or L-arabitol, dulcitol, erythritol, D- or L-fucose, glycogen, glycerol, inositol, inulin,
2-ketogluconate, 5-ketogluconate, D-lyxose, alpha-methyl-xyloside, rhamnose, L-sorbose, sorbitol, D-tagatose, xylitol, and L-xylose.
(c) Costin Stoica
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