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Bacterial communities in enrichments grown on four BPBA isomers and analyzed by 454 pyrosequencing of the 16S rRNA genes. Bacterial genera comprising >5% of the total community in enrichments grown on n-BPBA (a), iso-BPBA (b), sec-BPBA (c) and tert-BPBA (d). Others: sum of abundances for genera representing <5% of the community composition. Enrichments sampled at 0 day (light bars) and 49 days (dark bars) incubation.
