Lake Microbiology


Topics

  • Quantification of microbial processes in inland waters
  • Isolation and characterization of bacteria
  • Study of carbon cycling and climate relevant gases in inland waters
  • Sediment-water interactions
  • Plastics in freshwaters

Methods

  • Sediment and seston sampling
  • Measurement of matter fluxes wirth benthic chambers
  • Measurement of ebullition with simple and automatic bubble traps
  • High resolution profiles of dissolved substances (gel-probes, DET)
  • High frequency probes to measure greenhouse gases in freshwaters
  • Cultivation of aerobic and anaerobic microbes
  • Measurement of sulfate- and iron-reduction
  • Measurement of trace gases, pigments, alcohols, and organic acids with portable GC und HPLC
  • DNA-extraction, PCR, electrophoresis
  • Extraktion und polarographic measurement of reduced sulfur compounds
  • Sediment-incubationens
  • Microsensors (pH, H2S, O2, diffusion coefficient, LIX), in the lab or in situ (Mini-Profiler)
  • Photometry + Fluorometry
  • Microscopy
  • Specific surface determination with BET
  • Determination of viable microbial biomass using phospholipid phosphate
  • Concentration of cells using cross flow microfiltration
  • Sample preparation for microplastics analysis
  • Luminescent bacteria test
  • Solid phase toxicity test with Arthrobacter globiformis