ComamonadaceaeBetaproteobacteriaSewageRNA, Ribosomal, 16SBacteriaDNA, RibosomalPhylogenySequence Analysis, DNADNA, BacterialMolecular Sequence DataGram-Negative BacteriaGram-Positive BacteriaBacteria, AnaerobicGenes, rRNABase CompositionBacteria, AerobicBacterial ProteinsWater MicrobiologySpecies SpecificityRNA, BacterialBacterial Typing TechniquesSeawaterEscherichia coli