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in subjects: "Biological Markers"  
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The dynamics of carbon exchange in vertically stratified coastal bacterioplankton communities

Description: This research focuses on the development and application of novel molecular methods to measure bacterioplankton growth state in situ. These methods included bulk or population-based studies and single cell studies. Due to the limited duration of support and subsequent termination of the molecular-focused PIs, only the former bulk method was applied to marine samples. In addition, basic laboratory studies were completed which addressed why the selected biomarkers were regulated by bacterial grow… more
Date: July 1, 1998
Creator: Blum, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[A comprehensive signature biomarker analysis of the in-situ viable biomass, community composition, and nutritional status attributes of deep subsurface microbiota]. Final report

Description: The TAN sites contains subsurface sediment contaminated with trichloroethylene (TC). A suite of microbiological analyses, including ester-linked phospholipid fatty acid (PLFA) analysis, were performed to ascertain the microbial ecology associated with TCE degradation processes. The objective of the PLFA analyses were: (1) to determine the distribution of viable microbes throughout a vertical depth profile through the TCE plume, (2) determine the community composition of the viable extant microb… more
Date: September 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Early lung cancer detection project: Evaluation of 5, 10, 15, 20 tetrakis (4-carboxyphenyl) porphine (H{sub 2}TCPP). Final report

Description: The author evaluated a synthetic porphyrin, 5, 10, 15, 20 tetrakis (4-carboxyphenyl) porphene (H{sub 2}TCPP) as a marker of carcinogenesis. H{sub 2}TCPP was compared with two other carcinogenesis markers evaluated in the laboratory for their ability to detect exfoliated sputum cells undergoing transformation to lung cancer. In the present project the authors first established optimal conditions for cultured neoplastic and non-neoplastic (sputum) cells to take up H{sub 2}TCPP. This was accomplis… more
Date: October 1, 1998
Creator: Tockman, M.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Signature lipid biomarkers for in situ microbial biomass, community structure and nutritional status of deep subsurface microbiota in relation to geochemical gradients. Final technical report

Description: To obtain a better understanding of the microbial ecology of the deep subsurface, it was necessary to employ alternate techniques for the identification of microorganisms in situ. Classical microbiological techniques assay only those organisms which are culturable with bias occurring towards the media selected. Since culturable microorganisms typically represents only 0.1 to 10% of the extant microbiota, techniques for the direct assay of microorganisms in situ were needed. The analysis of cell… more
Date: February 1, 1998
Creator: White, D. C. & Ringelberg, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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