Microbial transformations in Alkali Lake, Oregon. Final report, 1 Aug 88-31 Jul 91
An examination was made of the terminal metabolic processes in subsurface sediments near West Alkali Lake, Oregon, by performing microbial counts of methanogenic bacteria and isolating the predominant methanogenic culture. This methanogen was characterized and found to be physiologically and phylogenetically different from other described strains, so it represents a previously undescribed species of bacterium, which was named 'Methanohalophilus oregonensis'. In contrast to published descriptions of many other methanogens which have been isolated from hypersaline environments, this one is halotolerant rather than halophilic. Another important characteristic of this organism is that it is capable of catabolizing dimethylsulfide or methanethiol. This ability is important because these methylated sulfur compounds are major conduits by which sulfur moves between the atmosphere and terrestrial and aquatic ecosystems. Phylogenetic comparisons to known methanogens showed that this strain is closely related to another methanogen, 'Methanolobus siciliae' T4/M which was named but not described.
- Research Organization:
- Oregon Graduate Inst. of Science and Technology, Beaverton, OR (United States)
- OSTI ID:
- 5891381
- Report Number(s):
- PB-92-123322/XAB; CNN: DI-14-08-0001-G1636
- Resource Relation:
- Other Information: Sponsored by Geological Survey, Reston, VA. Water Resources Div
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
OREGON
WATER POLLUTION
ORGANIC SULFUR COMPOUNDS
BIODEGRADATION
SEDIMENTS
CONTAMINATION
ENVIRONMENTAL TRANSPORT
LAKES
METABOLISM
METHANOGENIC BACTERIA
WASTE DISPOSAL
BACTERIA
CHEMICAL REACTIONS
DECOMPOSITION
DEVELOPED COUNTRIES
FEDERAL REGION X
MANAGEMENT
MASS TRANSFER
MICROORGANISMS
NORTH AMERICA
ORGANIC COMPOUNDS
POLLUTION
SURFACE WATERS
USA
WASTE MANAGEMENT
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology