Cross Index Aerococcus viridans
SuperSet Prokaryote, Eubacteria Gram Positive Cocci
Compare 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 Micrococcaceae are not a coherent group. Micrococcus is closely related to Arthrobacter , Planococcus is related to Bacilluss, while the radioresistant cocci called Deinococcus have atypical Gram positive cell walls.

Archaea

Subset  

 

 

Morphology Aerococcus viridans
CELLULAR  
Staining Gram positive
Morphology cocci form tetrads and pairs
Motility  
Specialized structures  
Division  
COLONIAL  
Solid surface Growth on agar is sparse. Causes greening (alpha hemolysis) on rabbit or horse bloodagar.
Liquid  

 

Growth Parameters Aerococcus viridans
PHYSIOLOGICAL  
Tropism  
Oxygen facultatively anaerobic microerophic
pH  
Temperature  
Requirements  
Products Acetyl methyl carbinol is not produced from glucose nor is ammonia generated from arginine
Enzymes catalase activity is either absent or weak
Unique features They are differentiated from other gram positive cocci by negative rather than positive activities.
ENVIRONMENTAL  
Habitat They are common contaminants in hospitals
Lifestyle  
Pathogenicity they cause a fatal disease in lobsters.
Distribution  

 

Reference

Aerococcus viridans

First citation Williams,R.E.O., A. Hirch and S.T.Cowan (1953) Aerococcus a new bacterial genus. J. Gen microbiol 8:475-480
The Prokaryotes p
Bergey’s Systematatic p 1080 J. B. Evans
Bergey’s Determinative p 527
References