Starvation improves survival of bacteria introduced into activated sludge

Article Abstract:

Results demonstrate high survivability of phenol-grown and starved Ralstonia eutropha E2 cells in the activated sludge with population density 50 to 100 times higher than those of normal cells. Data indicate that starved cells express phenol hydroxylase within 24 hours of their inoculation into the sludge.

Health aspects, Bacterial growth, Cell culture, Tissue culture, Sewage sludge, Sewage treatment

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Rapid mineralization of benzo[a]pyrene by a microbial consortium growing on diesel fuel

Article Abstract:

Results demonstrate that microbial consortia grow on diesel fuel and mineralize benzo[a]pyrene in the soil. The degree of mineralization is dependent on the concentrations of both the fuel and the benzo[a]pyrene. Data also suggest that there is a relationship between bacterial species in the consortium community and initiation of mineralization.

Environmental aspects, Bacteria, Diesel fuels, Polycyclic aromatic hydrocarbons, Benzopyrene, Biomineralization

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Simulating the contribution of coaggregation to interspecies hydrogen fluxes in syntrophic methanogenic consortia

Article Abstract:

A description is provided of a simple model for simulating the contribution of coaggregation to interspecies hydrogen fluxes between syntrophic bacteria and methanogenic archaea. It is applied to analyzing partially aggregated syntrophic cocultures with various substrates, revealing that large fractions of hydrogen molecules are fluxed in aggregates.

Science & research, Industrial Gas Manufacturing, Industrial gases, Hydrogen, Methanobacteriaceae, Methanogens, Atomic properties

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