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. 1996 Apr;40(4):899–903. doi: 10.1128/aac.40.4.899

Effects of inhibitors of protein synthesis on lysis of Escherichia coli induced by beta-lactam antibiotics.

D G Rodionov 1, E E Ishiguro 1
PMCID: PMC163227  PMID: 8849248

Abstract

The role of protein synthesis in ampicillin-induced lysis of Escherichia coli was investigated. The inhibition of protein synthesis through amino acid deprivation resulted in the rapid development of ampicillin tolerance as a consequence of the stringent response, as previously reported. In contrast, inhibition of protein synthesis by use of ribosome inhibitors such as chloramphenicol did not readily confer ampicillin tolerance and, in fact, promoted the development of both stages of the ampicillin-induced lysis process, i.e., (i) an ampicillin-dependent stage which apparently involves the interaction of penicillin-binding proteins with ampicillin and (ii) an ampicillin-independent stage which may represent the events leading to the deregulation of peptidoglycan hydrolase activity. We propose that lysis was facilitated when protein synthesis was inhibited because the production of new penicillin-binding proteins to replace those which were ampicillin inhibited was prevented under these conditions.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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