Mechanism of action of nalidixic acid on Escherichia coli. 3. Conditions required for lethality

Deitz, William H. (Sterling-Winthrop Research Institute, Rensselaer, N.Y.), Thomas M. Cook, and William A. Goss. Mechanism of action of nalidixic acid on Escherichia coli. III. Conditions required for lethality. J. Bacteriol. 91:768-773. 1966.-Nalidixic acid selectively inhibited deoxyribonucleic acid (DNA) synthesis in cultures of Escherichia coli 15TAU. Protein and ribonucleic acid synthesis were shown to be a prerequisite for the bactericidal action of the drug. This action can be prevented by means of inhibitors at bacteriostatic concentrations. Both chloramphenicol, which inhibits protein synthesis, and dinitrophenol, which uncouples oxidative phosphorylation, effectively prevented the bactericidal action of nalidixic acid on E. coli. The lethal action of nalidixic acid also was controlled by transfer of treated cells to drug-free medium. DNA synthesis resumed immediately upon removal of the drug and was halted immediately by retreatment. These studies indicate that nalidixic acid acts directly on the replication of DNA rather than on the "initiator" of DNA synthesis. The entry of nalidixic acid into cells of E. coli was not dependent upon protein synthesis. Even in the presence of an inhibiting concentration of chloramphenicol, nalidixic acid prevented DNA synthesis by E. coli 15TAU.

Medienart:

Artikel

Erscheinungsjahr:

1966

Erschienen:

1966

Enthalten in:

Zur Gesamtaufnahme - volume:91

Enthalten in:

Journal of bacteriology - 91(1966), 2 vom: 07. Feb., Seite 768-73

Sprache:

Englisch

Beteiligte Personen:

Deitz, W H [VerfasserIn]
Cook, T M [VerfasserIn]
Goss, W A [VerfasserIn]

Themen:

3B91HWA56M
66974FR9Q1
Anti-Bacterial Agents
Antimetabolites
Bacterial Proteins
Carbon Isotopes
Chloramphenicol
DNA, Bacterial
Dinitrophenols
Journal Article
Nalidixic Acid
RNA, Bacterial
Thymidine
VC2W18DGKR

Anmerkungen:

Date Completed 13.08.1966

Date Revised 26.05.2021

published: Print

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM053058607