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Genus	Species
Annwoodia	3
Candidatus Methylolitoribacter	2
Candidatus Methylophosphatis	2
Candidatus Methylopumilus	7
Candidatus Nitricoxidireducens	2
Candidatus Nitricoxidivorans	1
Candidatus Nitrotoga	14
Denitratisoma	15
Ferrigenium	7
Ferriphaselus	4
Gallionella	49
Georgfuchsia	4
Methylobacillus	57
Methylophilus	77
Methyloradius	3
Methylotenera	17
Methyloversatilis	24
Methylovorus	12
Nitrosomonas	221
Nitrosospira	174
Nitrosovibrio	12
Novimethylophilus	3
Parasulfuritortus	3
Pseudomethylobacillus	3
Rugosibacter	3
Sideroxyarcus	3
Sideroxydans	12
Spirillum	13
Sterolibacterium	6
Sulfuricella	5
Sulfuricystis	3
Sulfuriferula	10
Sulfurimicrobium	3
Sulfurirhabdus	3
Sulfurisoma	3
Sulfuritalea	8
Sulfuritortus	3
Thiobacillus	87
Usitatibacter	4