AnabaenaAnabaena variabilisCyanobacteriaNitrogen FixationAnabaena flos-aquaeGenes, BacterialBacterial ProteinsNitrogenaseAcetyleneAnabaena cylindricaGene Expression Regulation, BacterialSequence Analysis, DNASpecies SpecificityPhycocyaninMolecular Sequence DataFlavodoxinAmino Acid SequenceRNA, Ribosomal, 16SEscherichia coliNitrogenNostocDNA, BacterialFerredoxin-NADP ReductaseDNA, RibosomalMutationBacterial Typing TechniquesCloning, MolecularMice, Inbred StrainsPlasmidsMicrocystinsBase SequenceGlutamate-Ammonia LigaseVirulenceOscillatoriaCulture MediaPolymerase Chain ReactionGenome, BacterialPhenotypeRNA, BacterialMutagenesis, InsertionalPhylogenyMicrocystisSequence Homology, Amino AcidMethionine SulfoximineRestriction MappingBase CompositionPhycobilisomesAerobiosisOperonMicrobial Sensitivity TestsAnti-Bacterial AgentsNucleic Acid HybridizationGenetic Complementation TestDNA Transposable ElementsFerredoxinsSensory RhodopsinsSerotypingBlotting, SouthernSequence Homology, Nucleic AcidPhycobilinsDinitrogenase ReductaseNitratesMultigene FamilyGenes, rRNAWater Microbiology