Microbial InteractionsBiofilmsBacteriaMicrobial ConsortiaRNA, Ribosomal, 16SBiotaSoil MicrobiologyMetagenomeEcosystemBiodiversityPhylogenyMetagenomicsSequence Analysis, DNAArchaeaBacterial Physiological PhenomenaDNA, BacterialGeologic SedimentsWater MicrobiologyDNA, RibosomalProteobacteriaMicrobiotaSpecies SpecificityDenaturing Gradient Gel ElectrophoresisRhizosphereSoilBiodegradation, EnvironmentalSeawaterPlanktonBioreactorsMolecular Sequence DataEnvironmental MicrobiologyBiomassGroundwaterFresh WaterCommunity Health ServicesSewageFungiGastrointestinal TractMethaneOil and Gas FieldsCluster AnalysisColony Count, MicrobialGenes, rRNADNA, ArchaealWaste Disposal, FluidRNA, BacterialSoil PollutantsCarbonPolymorphism, Restriction Fragment LengthNitrificationCommunity Networks