Physiological responses to starvation in the marine oligotrophic ultramicrobacterium Sphingomonas sp. strain RB2256
Article Abstract:
The marine oligotrophic ultramicrobacterium Sphingomonas sp. strain RB2256 and its physiological responses to starvation are discussed. Marine oligotrophic ultramicrobacteria likely include a starvation response and capacity for a high level of gene regulation. Ribosome synthesis is not directly linked to protein synthesis. Function of ribosomes may not be limited to translation.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
Specific growth rate plays a critical role in hydrogen peroxide resistance of the marine oligotrophic ultramicrobacterium Sphingomonas alaskensis strain RB2256
Article Abstract:
The marine oligotrophic ultramicrobacterium Spingomonas alaskensis becomes 10,000 times more resistant to stress under nutrient-limited growth conditions. This is the first demonstration of variable stress resistance in a bacterium under carbon and energy limitation.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Responses to stress and nutrient availability by the marine ultramicrobacterium Sphingomonas sp. strain RB2256
Article Abstract:
The marine bacterium Sphingomonas sp. strain RB2256 displays physiological and molecular characteristics that permit it to grow in large numbers in seawater. Growing cells of the strain are unaffected by nutrient starvation and conditions such as high temperature, ethanol, and hydrogen peroxide. Starved cells also show similar responses. The stress resistance mechanisms differ from those of nondifferentiating bacteria. The growth rates immediately revert back to high levels on a sudden exposure of starved cells to high concentrations of glucose.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Genes for the synthesis of the osmoprotectant glycine betaine from choline in the moderately halophilic bacterium Halomonas elongata DSM 3043
- Abstracts: Structural changes and interactions involved in the Ca(super.2+)-triggered stabilization of the cell-bound cell envelope proteinase in Lactococcus lactis subsp. cremoris SK11
- Abstracts: Characterization of an unusual cold-active beta-glucosidase belonging to family 3 of the glycoside hydrolases from the psychrophilic isolate paenibacillus sp. strain C7
- Abstracts: Phylogenetic position of Rhizobium sp. strain Or 191, a symbiont of both Medicago sativa and Phaseolus vulgaris, based on partial sequences of the 16S rRNA and nifH genes