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RECORD NUMBER: 50 OF 64

OLS Field Name OLS Field Data
Main Title Quantitative Characterization of Microbial Biomass and Community Structure in Subsurface Material: A Prokaryotic Consortium Responsive to Organic Contamination.
Author Smith, G. A. ; Nickels, J. S. ; Kerger, B. D. ; Davis, J. D. ; Collins, S. P. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Florida State Univ., Tallahassee. Dept. of Biological Science.
Year Published 1986
Report Number EPA/600/J-86/066;
Stock Number PB86-212586
Additional Subjects Biomass ; Water pollution ; Sediments ; Microorganisms ; Fatty acids ; Bacteria ; Polysaccharides ; Biosynthesis ; Ground water ; Stress(Physiology) ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB86-212586 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 9p
Abstract
Application of quantitative methods for microbial biomass, community structure, and nutritional status to the subsurface samples collected with careful attention to contamination reveals a group of microbes. The microbiota are sparse by several measures of biomass compared to surface sediments and soils. The community structure as characterized by the patterns of ester-linked fatty acids from the phospholipids shows an absence of long chain polyenoic fatty acids typical if microeukaryotes and with high proportions of fatty acids typical of bacteria. Subsurface samples contain a higher proportion of glycerol teichoic acids than surface samples. Microbes in uncontaminated subsurface sediments show nutritional stress as evidenced by high levels of poly beta-hydroxybutyrate and extracellular polysaccharides.