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