Bacteria  >  Pseudomonadati  >  Pseudomonadota  >  Betaproteobacteria

Family	Genus	Species
Alcaligenaceae	36	2584
Aquaspirillaceae	4	74
Azonexaceae	4	136
Burkholderiaceae	27	10299
Candidatus Eutrophomonadaceae	0	0
Candidatus Eutrophovitaceae	0	0
Candidatus Procaibacteraceae	1	11
Casimicrobiaceae	1	3
Chitinibacteraceae	13	175
Chitinimonadaceae	0	3
Chromobacteriaceae	6	632
Comamonadaceae	43	5030
Ferritrophicaceae	1	3
Ferrovaceae	1	31
Fluviibacteraceae	1	2
Gallionellaceae	6	99
Leeiaceae	1	6
Methylophilaceae	8	388
Neisseriaceae	19	628
Nitrosomonadaceae	3	720
Oxalobacteraceae	22	2973
Rhodocyclaceae	12	378
Saeziaceae	1	2
Sphaerotilaceae	16	879
Spirillaceae	1	13
Sterolibacteriaceae	11	62
Sulfuricellaceae	4	22
Sutterellaceae	7	81
Thiobacillaceae	4	96
Thiobacteraceae	1	7
Usitatibacteraceae	1	6
Zoogloeaceae	10	355
mealybug endosymbionts	0	1