Because the electricity generation in MFCs is based on the metabolic activity of living microorganisms, experimental screening of different microorganisms for better anodic activity has long been recognised as a fundamental way to improve MFC performance.
Although this general order of ranking of efficiency holds for diverse types of microorganisms, quantitative comparisons vary with different microorganisms and experimental conditions.
Notably, we based the hazards identified in this study on MIC values of clinically relevant microorganisms, because experimental data on antibiotic toxicity in WWTPs are too scarce to be used for effects modeling.
With the aim to simulate the effects of plant litter on soil microorganisms, a microcosm experimental model was used.
This virus has been deposited in the Polish Collection of Microorganisms (Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland) under accession number F/00067.
The combination of both sources of C probably best met the need of C by heterotrophic microorganisms in the experimental period and maintained a large demand for electrons, which contributed to N2O consumption and N2 production.
Although additional studies investigating uropygial gland size and composition in relation to natural unaltered microbiome will certainly provide important knowledge about bird-microorganisms interactions, our experimental study showed that Great tits exposed to different levels of bacterial densities modified their investment in their uropygial gland.
Response surface methodology, based on a five-level, two variable central composite design, was used to optimize target microorganism reduction and the experimental parameters.
Comparison with the data for other hydrocarbons suggests that 0.1 g L−1 might be not yet toxic to the microorganism (Straathof 2003), but experimental verification will be necessary.
The main types of ecosystems' responses to changes in environmental conditions (a change in CO2 concentration) have been demonstrated in a "plants — rhizospheric microorganisms — artificial soil" simple experimental system.
