Pigment production by Streptococcus agalactiae in quasi-defined media.
A quasi-defined medium that supports the growth of Streptococcus agalactiae as pigmented colonies has been developed. The medium contains starch, a peptic digest of albumin, amino acids, nucleosides, vitamins, and salts. The presence of free cysteine, which could be replaced with other sulphur-containing compounds and to a lesser degree by reducing agents, was required for pigment formation.
Rosa-Fraile
M
M
Microbiology Service, Virgen de las Nieves Hospital, 18014 Granada.
Sampedro
A
A
Rodríguez-Granger
J
J
García-Peña
M L
ML
Ruiz-Bravo
A
A
Haïdour
A
A
D001431:Bacteriological Techniques; D003470:Culture Media / Q000737:chemistry; D006801:Humans; D010860:Pigments, Biological / Q000378:metabolism*; D013290:Streptococcal Infections / Q000382:microbiology*; D013292:Streptococcus agalactiae / Q000254:growth & development* / Q000302:isolation & purification* / Q000378:metabolism
D003470:Culture Media; D010860:Pigments, Biological