Escherichia hermannii: susceptibility pattern to beta-lactams and production of beta-lactamase.
The susceptibility pattern of Escherichia hermannii, although closely related to Escherichia coli according to its biochemical patterns, was clearly distinguishable by its susceptibility to beta-lactams by both diffusion and dilution methods from E. coli penicillinase producing or non-producing strains, Citrobacter diversus, Klebsiella pneumoniae, and Klebsiella oxytoca. Beta-lactamase clavulanate-sensitive activity was localized with various isoelectric points from 7.0 to 8.5. No cross hybridization with DNA intragenic probes (blaTEM, blaSHV, blaCARB and blaOXY) was observed by dot blot procedure.
Fitoussi
F
F
Université Paris VII, Hôpital Saint-Louis, Laboratoire de Bactériologie-Virologie, Paris, France.
Arlet
G
G
Grimont
P A
PA
Lagrange
P
P
Philippon
A
A
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004925:Escherichia / Q000187:drug effects* / Q000201:enzymology / Q000235:genetics; D008826:Microbial Sensitivity Tests; D010957:Plasmids; D001618:beta-Lactamases / Q000096:biosynthesis*; D047090:beta-Lactams
D000900:Anti-Bacterial Agents; D047090:beta-Lactams; D001618:beta-Lactamases