Effect of Borate on the Growth of Coagulase-Positive and Coagulase-Negative Staphylococci 1

AUTOR(ES)

Jay, James M.

RESUMO

Of 235 strains of coagulase-positive Staphylococcus aureus studied, 221 or 94% were inhibited by 1.5 × 10−8m sodium borate, whereas only 6 of 57 (10.5%) coagulase-negative strains were inhibited by the same borate concentration. Four of the six coagulase-negatives were food poisoning strains and one was a hospital pathogen. Borate sensitivity was found to correlate well with lysozyme and α-toxin production by coagulase-positive strains.

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