Morphological aberrations of nutritionally deficient streptococci: Association with pyridoxal (vitamin B6) concentration and potential role in antibiotic resistance

R. B. Clark, R. E. Gordon, E. J. Bottone, M. Reitano

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13 Scopus citations

Abstract

A strain of a nutritionally deficient streptococcus was shown to undergo morphological aberrations according to pyridoxal concentrations in the growth medium. Filamentous rod-shaped cells, observed by electron microscopy, predominated in the presence of decreasing concentrations. Multiple invaginations in the outer cell wall suggested inhibition of binary fission. Penicillin antimicrobial studies performed in the presence of similar pyridoxal concentrations indicated a relationship between filamentous forms and penicillin susceptibility.

Original languageEnglish
Pages (from-to)414-417
Number of pages4
JournalInfection and Immunity
Volume42
Issue number1
DOIs
StatePublished - 1983

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