Incidence of thymidine-dependent enterococci detected on Mueller-Hinton agar with low thymidine content.
It was observed that 10% of urine culture isolates of enterococci tested for antimicrobial susceptibility failed to grow on commercially prepared Mueller-Hinton agar with low levels of thymidine and thymine. All strains could utilize exogenous thymidine and thymine and required only low levels (0.4-microgram disk) to support growth. All thymidine-thymine-requiring strains were resistant to trimethoprim-sulfamethoxazole.
D000328:Adult; D000368:Aged; D001437:Bacteriuria / Q000382:microbiology*; D002648:Child; D003470:Culture Media; D013293:Enterococcus faecalis / Q000302:isolation & purification; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013211:Staphylococcus aureus / Q000302:isolation & purification; D013936:Thymidine / Q000378:metabolism*
D003470:Culture Media; D013936:Thymidine