Bacteria  >  Pseudomonadati  >  Pseudomonadota  >  Betaproteobacteria

Family	Genus	Species
Alcaligenaceae	36	2632
Aquaspirillaceae	4	74
Azonexaceae	4	139
Burkholderiaceae	28	10495
Candidatus Eutrophomonadaceae	0	0
Candidatus Eutrophovitaceae	0	0
Candidatus Procaibacteraceae	1	11
Casimicrobiaceae	1	3
Chitinibacteraceae	14	182
Chitinimonadaceae	0	3
Chromobacteriaceae	6	642
Comamonadaceae	43	5159
Ferritrophicaceae	1	3
Ferrovaceae	1	31
Fluviibacteraceae	1	2
Gallionellaceae	6	102
Leeiaceae	1	6
Methylophilaceae	8	390
Neisseriaceae	19	948
Nitrosomonadaceae	3	726
Oxalobacteraceae	28	3042
Rhodocyclaceae	12	378
Saeziaceae	1	2
Sphaerotilaceae	16	895
Spirillaceae	1	13
Sterolibacteriaceae	11	69
Sulfuricellaceae	4	22
Sutterellaceae	7	84
Thiobacillaceae	4	96
Thiobacteraceae	1	7
Usitatibacteraceae	1	6
Zoogloeaceae	11	361
mealybug endosymbionts	0	1