L-Phase variants of Agromyces ramosus

Agromyces ramosus, which is a numerically prevalent bacterium in soil, was easily induced into the L-phase by growing it on agar media containing low levels of penicillin or glycine. The L-forms were stable after initial contact with the inducing agent and could not be reverted to the bacterial form...

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Bibliographic Details
Published in:Antonie van Leeuwenhoek 1975-01, Vol.41 (2), p.153-171
Main Authors: Horwitz, A H, Casida, Jr, L E
Format: Article
Language:English
Subjects:
Bacteria - drug effects
Bacteria - ultrastructure
Glycine - pharmacology
L Forms
Microscopy, Electron
Penicillins - pharmacology
Soil Microbiology
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Summary:Agromyces ramosus, which is a numerically prevalent bacterium in soil, was easily induced into the L-phase by growing it on agar media containing low levels of penicillin or glycine. The L-forms were stable after initial contact with the inducing agent and could not be reverted to the bacterial form by any of the procedures tried. These results are discussed in relation to a possible natural occurrence of L-forms of this bacterium in soil.
ISSN:0003-6072
DOI:10.1007/BF02565047