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

摘要

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 microbiota and (3) relate the data derived from the PLFA analyses to other measures of the in situ microbiota as well as to the presence of TCE degradative products.