Cytoplasmic membrane fraction that promotes septation in an Escherichia coli lon mutant
Journal Article
·
· J. Bacteriol.; (United States)
OSTI ID:6227150
A particulate fraction derived from bacterial cells stimulates septation in irradiated Escherichia coli lon mutants when added to postirradiation plating media. It was established that the particles are derived from the cytoplasmic membrane and that they have been partially purified by sucrose density gradient centrifugation. These particles also contain the cytochrome-based respiratory activity of the cell. A variety of experiments established a correlation between the septation-promoting activity of the particles and their ability to remove oxygen from the postirradiation plating medium. It was suggested that the efficient removal of oxygen from the medium allowed the lon cells to repair radiation-induced damage to the septation mechanism.
- Research Organization:
- Oak Ridge National Lab., TN
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6227150
- Journal Information:
- J. Bacteriol.; (United States), Journal Name: J. Bacteriol.; (United States) Vol. 147:2; ISSN JOBAA
- Country of Publication:
- United States
- Language:
- English
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Wed Oct 01 00:00:00 EDT 1958
· Radiation Research
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Related Subjects
560131* -- Radiation Effects on Microorganisms-- Basic Studies-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BACTERIA
BIOLOGICAL EFFECTS
BIOLOGICAL PATHWAYS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL RECOVERY
BIOLOGICAL REPAIR
CELL CONSTITUENTS
CELL MEMBRANES
CENTRIFUGATION
CHEMICAL ANALYSIS
CYTOCHROMES
CYTOLOGICAL TECHNIQUES
CYTOPLASM
DNA
ELECTROMAGNETIC RADIATION
ELEMENTS
ENZYME ACTIVITY
ESCHERICHIA COLI
MEMBRANES
METABOLISM
MICROORGANISMS
MUTANTS
MUTATIONS
NONMETALS
NUCLEIC ACIDS
ORGANIC COMPOUNDS
OXYGEN
PARTICLES
PIGMENTS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION EFFECTS
RADIATIONS
RADIOSENSITIVITY EFFECTS
RECOVERY
REPAIR
RESPIRATION
SEPARATION PROCESSES
SPONTANEOUS MUTATIONS
ULTRAVIOLET RADIATION
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BACTERIA
BIOLOGICAL EFFECTS
BIOLOGICAL PATHWAYS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL RECOVERY
BIOLOGICAL REPAIR
CELL CONSTITUENTS
CELL MEMBRANES
CENTRIFUGATION
CHEMICAL ANALYSIS
CYTOCHROMES
CYTOLOGICAL TECHNIQUES
CYTOPLASM
DNA
ELECTROMAGNETIC RADIATION
ELEMENTS
ENZYME ACTIVITY
ESCHERICHIA COLI
MEMBRANES
METABOLISM
MICROORGANISMS
MUTANTS
MUTATIONS
NONMETALS
NUCLEIC ACIDS
ORGANIC COMPOUNDS
OXYGEN
PARTICLES
PIGMENTS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION EFFECTS
RADIATIONS
RADIOSENSITIVITY EFFECTS
RECOVERY
REPAIR
RESPIRATION
SEPARATION PROCESSES
SPONTANEOUS MUTATIONS
ULTRAVIOLET RADIATION