Bacteria  >  Pseudomonadati  >  Pseudomonadota  >  Betaproteobacteria

Family	Genus	Species
Alcaligenaceae	36	2610
Aquaspirillaceae	4	74
Azonexaceae	4	136
Burkholderiaceae	27	10359
Candidatus Eutrophomonadaceae	0	0
Candidatus Eutrophovitaceae	0	0
Candidatus Procaibacteraceae	1	11
Casimicrobiaceae	1	3
Chitinibacteraceae	13	178
Chitinimonadaceae	0	3
Chromobacteriaceae	6	636
Comamonadaceae	43	5054
Ferritrophicaceae	1	3
Ferrovaceae	1	31
Fluviibacteraceae	1	2
Gallionellaceae	6	102
Leeiaceae	1	6
Methylophilaceae	8	388
Neisseriaceae	19	842
Nitrosomonadaceae	3	725
Oxalobacteraceae	23	3003
Rhodocyclaceae	12	378
Saeziaceae	1	2
Sphaerotilaceae	16	889
Spirillaceae	1	13
Sterolibacteriaceae	11	63
Sulfuricellaceae	4	22
Sutterellaceae	7	81
Thiobacillaceae	4	96
Thiobacteraceae	1	7
Usitatibacteraceae	1	6
Zoogloeaceae	10	360
mealybug endosymbionts	0	1