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. 1972 Jan;109(1):162–168. doi: 10.1128/jb.109.1.162-168.1972

Effects of Phenethyl Alcohol on Phospholipid Metabolism in Escherichia coli

William D Nunn 1, Burton E Tropp 1
PMCID: PMC247263  PMID: 4550658

Abstract

The incorporation of labeled precursors into the deoxyribonucleic acid, ribonucleic acid (RNA), proteins, and phospholipids of Escherichia coli cultured in the presence of phenethyl alcohol (PEA) was determined. PEA inhibited the uptake of labeled uracil to the same extent in cells exhibiting relaxed and stringent control of RNA synthesis. This indicates that PEA does not primarily affect amino acid synthesis or activation. Uptake of labeled acetate into the phospholipid fraction was more sensitive to inhibition by low concentrations of PEA than was the uptake of labeled precursors into the macromolecules. Thymine starvation or the addition of nalidixic acid (10 μg/ml) had no effect on acetate incorporation. Chloramphenicol (25 μg/ml) was a much less effective inhibitor of acetate incorporation than was PEA. The distribution of labeled acetate incorporated into phospholipids was markedly affected by the presence of PEA. The uptake of acetate into phosphatidylethanolamine and phosphatidylglycerol was inhibited, whereas the uptake of acetate into the cardiolipin fraction was unaffected. Since acetate incorporation into phospholipid was quite sensitive to PEA, we suggest that the PEA-sensitive component required for the initiation of replication may be a phospholipid(s).

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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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