Patterns of cell division, DNA base compositions, and fine structures of some radiation-resistant vegetative bacteria found in food
Journal Article
·
· Appl. Environ. Microbiol.; (United States)
OSTI ID:5409132
Representative highly radiation-resistant Moraxella-Acinetobacter (M-A), Pseudomonas radiora, Micrococcus radiodurans, and Micrococcus radiophilus exhibited a wide variety of division systems and cell wall characteristics. However, the more resistant M-A possessed unusually thick cell walls, indicating a possible role of the cell wall in radiation resistance in the M-A. Thick septation was present in most of the bacteria studied, but was absent in P. radiora, thus excluding this as a necessity for high resistance. Reliable determination of the number of division planes of the M-A for use as a taxonomic criterion was achieved by the direct observation of dividing cells. The highly resistant M-A were found to divide in multiple planes and had base compositions of 54.0 to 57.5%, unlike typical Moraxella and/or Acinetobacter species. The taxonomic position of most highly resistant bacteria remains unclear.
- Research Organization:
- Univ. of Nebraska, Lincoln
- OSTI ID:
- 5409132
- Journal Information:
- Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 37:1; ISSN AEMID
- Country of Publication:
- United States
- Language:
- English
Similar Records
Isolation of radioresistant vegetative bacteria from the high-background radioactivity area
Effect of physiological age on radiation resistance of some bacteria that are highly radiation resistant. [Micrococcus radiodurans; Micrococcus sp. isolate C-3; Moraxella sp isolate 4; Escherichia coli]
Repair of ultraviolet light-induced damage in Micrococcus radiophilus, and extremely resistant microorganism
Journal Article
·
Wed Feb 28 23:00:00 EST 1973
· Sci. Pap. Inst. Phys. Chem. Res. (Jap.), v. 67, no. 1, pp. 35-40
·
OSTI ID:4389759
Effect of physiological age on radiation resistance of some bacteria that are highly radiation resistant. [Micrococcus radiodurans; Micrococcus sp. isolate C-3; Moraxella sp isolate 4; Escherichia coli]
Journal Article
·
Tue May 01 00:00:00 EDT 1984
· Appl. Environ. Microbiol.; (United States)
·
OSTI ID:6600370
Repair of ultraviolet light-induced damage in Micrococcus radiophilus, and extremely resistant microorganism
Journal Article
·
Sat May 01 00:00:00 EDT 1976
· J. Bacteriol.; (United States)
·
OSTI ID:7354905