Parallel processing of substrate correlates with greater functional stability in methanogenic bioreactor communities perturbed by glucose

Article Abstract:

Research demonstrates that methanogenic bioreactor communities composed of different populations of bacteria exhibit functional stability based on their substrate processing type. Parallel substrate processing leads to more stability than serial substrate processing.

Statistical Data Included, Bacterial growth

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Flexible community structure correlates with stable community function in methanogenic bioreactor communities perturbed by glucose

Article Abstract:

Results demonstrate that in high-spirochete communities a dramatic shift in the relative abundance of fermentative bacteria is seen upon glucose shock whereas in low-spirochete communities perturbation effects are smaller. Data point out that community stability and functional stability are inversely correlated.

Biotic communities

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Effects of phenol feeding pattern on microbial community structure and cometabolism of trichloroethylene

Article Abstract:

The phenol feeding pattern affects the cometabolism of trichloroethane as the former manipulates the structure of the microbial community. Microbial communities, enriched with patterns of continuous or protracted feeding intervals, show decreased capacity for trichloroethane transformation, and have higher levels of fungi and predators. However, communities enriched with phenol at short feeding intervals exhibit greater trichloroethane transformation rates, lower levels of fungi, and higher bacterial biomass. The cause of these effects is, however, unknown.

Research, Phenols, Pseudomonas, Phenols (Class of compounds), Microbial ecology, Metabolism

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