Some Properties of the Beta-Lactamase Genes in Staphylococcus epidermidis

AUTOR(ES)

Baldwin, Jack N.

RESUMO

Eighty-three per cent of 200 different freshly isolated cultures of Staphylococcus epidermidis produced beta lactamase. Growth in the presence of acridine orange or ethidium bromide or growth at 44 C resulted in a high frequency of loss of the beta lactamase genes in some strains of S. epidermidis. The relationship between beta-lactamase production and resistance to mercuric, cadmium and arsenate ions differed from that observed in Staphylococcus aureus. It is postulated that the genes for beta lactamase in certain strains of S. epidermidis are on a plasmid.

Documentos Relacionados

• Detection of genes regulating beta-lactamase production in Enterococcus faecalis and Staphylococcus aureus.
• Endogenous, Spontaneous Formation of Beta-Lactamase in Staphylococcus aureus
• Plasmid-determined beta-lactamase indistinguishable from the chromosomal beta-lactamase of Escherichia coli.
• Tn4201, a beta-lactamase transposon in Staphylococcus aureus.
• Nucleotide sequence of the beta-lactamase gene from Enterococcus faecalis HH22 and its similarity to staphylococcal beta-lactamase genes.