Microbial ConsortiaOil and Gas FieldsBacteriaBiodegradation, EnvironmentalBleaching AgentsMethaneBeggiatoaOmanSulfur-Reducing BacteriaBioreactorsDeltaproteobacteriaCheeseBiotaBacteria, AnaerobicMetagenomeRNA, Ribosomal, 16SIndustrial MicrobiologySoil MicrobiologyArchaeaPhylogenyGeologic SedimentsSequence Analysis, DNAEcosystemSewageAnaerobiosisSeawaterDNA, RibosomalWater MicrobiologySymbiosisDNA, BacterialSulfatesMolecular Sequence DataOxidation-Reduction