ArchaeaArchaeal ProteinsGenes, ArchaealDNA, ArchaealRNA, ArchaealGenome, ArchaealCrenarchaeotaGene Expression Regulation, ArchaealHaloferax volcaniiPhylogenyMethaneMethanococcusBacteriaSulfolobusMethanobacteriaceaeMolecular Sequence DataEuryarchaeotaMethanosarcinaNitrificationMethanobacteriumDesulfurococcaceaeMethanosarcinalesHalobacterialesHaloferaxPyrococcusSulfolobus acidocaldariusRNA, Ribosomal, 16SMethanosarcinaceaePyrococcus abyssiChromosomes, ArchaealSulfolobus solfataricusGeologic SedimentsMethanococcalesArchaeoglobus fulgidusPyrococcus furiosusEvolution, MolecularSeawaterThermococcusEukaryotic CellsMethanosarcina barkeriHalobacteriaceaeAmmoniaAmino Acid SequenceArchaeal VirusesGlyceryl EthersEukaryotaThermoplasmaSequence AlignmentSequence Analysis, DNADNA, RibosomalSequence Homology, Amino AcidAutotrophic ProcessesHaloferax mediterraneiProkaryotic CellsThermoproteaceaeHalobacterium salinarumBiodiversityBase SequenceThermoplasmalesGene Transfer, HorizontalMethanobrevibacterBacterial ProteinsHaloarcula marismortuiGenes, rRNAGenome, BacterialSulfolobalesOxidoreductasesModels, MolecularWater MicrobiologyMethanomicrobiaceaeEcosystemArchaeoglobusAnaerobiosisRNA, TransferConserved SequenceSalinityEscherichia coliSoil MicrobiologyPlanktonOxidation-ReductionRNA, BacterialRibosome Subunits, Large, ArchaealSulfolobaceaeBioreactorsHot TemperatureHydrothermal VentsProtein Structure, TertiaryProteobacteriaDNA, BacterialPacific OceanGenes, BacterialDeltaproteobacteriaBiotaSulfurHaloarculaMicrobial ConsortiaMetagenomicsHot SpringsBacterial Physiological PhenomenaSulfur-Reducing Bacteria