Lactobacillus ruminis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Lactobacillaceae, Genus Lactobacillus [Group A lactobacilli (obligately
homofermentative), Lactobacillus salivarius  phylogenetic-group],
Lactobacillus ruminis Sharpe, Latham, Garvie, Zirngibl and Kandler
1973.
Rods (0.6-0.8 x 3-5 μm) occurring singly, in pairs and in short chains. Strains isolated
from the rumen are motile by peritrichous flagella. Strains isolated from sewage are
rarely motile.
Anaerobic. Surface growth is obtained only under reduced oxygen pressure; growth in
liquid media is improved by the addition of cysteine-HCl. No growth at 15 ºC. Strains
isolated from the rumen can grow at 45 ºC, but strains isolated from sewage not.
Isolated from rumen of cow, sewage and from the intestines of human, pig and cattle.
Undetermined.
  1. Hammes W.P. and Hertel C., 2009. Genus I. Lactobacillus  Beijerinck 1901. 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, 465-511.
  2. Sharpe M.E., Latham M.J., Garvie E.I., Zirngibl J. and Kandler O., 1973. Two New Species of Lactobacillus Isolated from the Bovine
    Rumen, Lactobacillus ruminis sp.nov. and Lactobacillus vitulinus sp.nov. J. Gen. Microb. 77, 37-49.
Obligately homofermentative (hexoses are fermented almost exclusively to lactic acid
by the Embden-Meyerhof pathway; pentoses or gluconate are not fermented).

Positive results for fermentation of: amygdalin, cellobiose, esculin, fructose, galactose,
glucose (without gas production), maltose,
mannose, melibiose, raffinose, salicin
, and sucrose.

Negative results for arginine hydrolysis, fermentation of: arabinose, glycerol, inositol, inulin, mannitol, melezitose, rhamnose, ribose,
sorbitol, trehalose
, and xylose.

Lactose fermentation is variable.
(c) Costin Stoica
Antibiogram
Encyclopedia
Culture media
Biochemical tests
Stainings
Images
Movies
Articles
Identification
Software
R E G N U M
PROKARYOTAE
Previous page
Back