Microbiology Phenol Red Test Results

Gram Positive Cocci S. aureus M. roseus M. luteus S. ureae L. lactis S. aurantiaca Gram Positive Rods B.cereus B. subtilis M. smegmatis C. pseudodiphtheriti cum Gram Negative Rods E. coli P. vulgaris P. fluorescens C. freundii E. aerogenes K. pneumoniae A. viscolactis S. marcescens Gram Negative Cocci M. catarrhalis N. sicca Phenol Red dextrose + weak + weak + weak + + weak + Phenol Red lactose + - - - +- - Phenol Red mannitol + - - - + weak + - - + weak + weak + - - - - weak + - weak + - - ++ + - + + + + + + -+ + + + + - + + + + + + - + - + + + - + + + + + + - - - + - Acid=+ No Acid=- - - Gas=+ No Gas=- + weak + - -