Open AccessPenicillin tolerance in Streptococcus faecium ATCC 9790
Author(s) -
Ibrahim Said,
Hansel M. Fletcher,
Amy Volpe,
L Daneo-Moore
Publication year - 1987
Publication title -
antimicrobial agents and chemotherapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.07
H-Index - 259
eISSN - 1070-6283
pISSN - 0066-4804
DOI - 10.1128/aac.31.7.1150
Subject(s) - microbiology and biotechnology , lysis , penicillin , muramidase , streptococcaceae , antibiotics , biology , bacteria , streptococcus , enterococcus faecium , streptococcus pneumoniae , multidrug tolerance , benzylpenicillin , lysozyme , biochemistry , genetics , biofilm
Tolerant strains of Streptococcus faecium had higher levels of muramidase 2 and lower levels of trypsinactivable muramidase 1 than did susceptible strains. Susceptible strains lysed faster than did tolerant strains in buffer and at some antibiotic concentrations. The addition of Triton X-100 produced equal lysis rates for susceptible and tolerant cultures.