Cross Index | Lactococcus |
SuperSet | Prokaryote, Eubacteria Gram Positive Cocci |
Compare | COMPARE
WITH Streptococcus and Lactobacillus aerobes: Deinobacter grandis Deinococcus, Marinococcus, Micrococcus, Planococcus , Salinicoccus roseus facultative anaerobes: Aerococcus viridans, Enterococcus, Gemella haemolysans, Lactococcus Leuconostoc, Melissococcus pluton, Pediococcus, Saccharococcus thermophilus, Staphylococcus, Stomatococcus mucilaginsos, Streptococcus, Trichococcus flocculiformis, Vagococcus anaerobes Coprococcus, Peptococcus niger , Peptostreptococcus, Ruminococcus, Sarcina Catalase positive:Deinococcus, Micrococcus, Planococcus, Staphylococcus,, Stomatococcus mucilaginsosus |
Contrast | Archaea |
Subset |
Lactococcus |
CELLULAR |
Staining | Gram positive |
Morphology | cocci in pairs or short chains, no capsule |
Motility | non motile |
Specialized structures | no endospores |
Division |
COLONIAL |
Solid surface |
Liquid |
Growth Parameters | Lactococcus |
PHYSIOLOGICAL |
Tropism | chemoorganotrophic with a fermetative metabolism |
Oxygen | facultative anaerobes |
pH | |
Temperature | optimum 30 oC, will grow at 10 oC but not at 45oC |
Requirements | nutritonal requirements are complex |
Products | carbohydrates fermentated to lactiv acid with no gas production |
Enzymes | catalase negative , oxidase negative |
Unique features | does not grow in 0.5% NaCl. Lancefield serological group N |
ENVIRONMENTAL |
Habitat | dairy and plant products |
Lifestyle | |
Pathogenicity |
Distribution |
Genome | Lactococcus |
G+C Mol % | 38-40 |
Reference | Lactococcus |
Several of the Streptococci notably Streptococcus lactis and Streptococcus raffinolactis as well as Lactobacillus hordniae and Lactobacillus xylosus were transferred into this genus | |
First citation | Schleifer et al 1985.
Syst. Appl. Microbiol 6: 183-195 Schleifer et al 1986 IJSB 36: 354-356 |
The Prokaryotes | |
Bergey's Determinative | p 528 |
References |