title: Sensitivity of Serratia to tetracycline.
abstract: S. marcescens had two levels of resistance to tetracycline, bacteriostatic end-points 32 and 180 microgram/ml; the latter group consisted of strains resistant to carbenicillin and to streptomycinl S. plymouthica, S.l liquefaciens, and S. marinorubra were sensitive to tetracycline with the last-named as the least sensitive species. Less difference was found between the bactericidal end-points of the four species, but there was still 1-2 two-fold steps between S. marcescens and the remaining three species.
mesh_terms: D002228:Carbenicillin / Q000494:pharmacology; D012705:Serratia / Q000187:drug effects*; D012706:Serratia marcescens / Q000187:drug effects; D013045:Species Specificity; D013307:Streptomycin / Q000494:pharmacology; D013752:Tetracycline / Q000494:pharmacology*
chemical_list: D013752:Tetracycline; D002228:Carbenicillin; D013307:Streptomycin