Extracellular product(s) of Staphylococcus aureus stimulate their own growth.
The effect of extracellular products obtained from culture supernatant of Staphylococcus aureus strain Cowan I on the bacterial growth was studied in a synthetic medium. Addition of the extracellular products to a fresh medium stimulated growth already after 2 h of incubation, with an approximately two-fold increase in cell density as compared to an unsupplemented medium, probably by promoting an initiation of growth accompanied by a reduction of the initial lag phase. The growth-stimulating effect was also monitored as an increase of adenosine triphosphate (ATP) in the bacterial culture during the different phases of growth.
Sakata
N
N
Department of Legal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan.
Usui
Y
Y
Kogure
T
T
D003470:Culture Media; D006133:Growth Substances / Q000302:isolation & purification* / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000254:growth & development*
D003470:Culture Media; D006133:Growth Substances