Alpha proteobacteria
Caulobacterales
Caulobacter crescentus
Caulobacter sp.
Caulobacter spinosum
Rhizobiales
Agrobacterium tumefaciens
Agrobacterium vitis
Ancylobacter aquaticus
Bartonella bacilliformis
Bartonella henselae
Bartonella quintana
Bradyrhizobium japonicum
Brucella abortus
Brucella melitensis
Brucella suis
Hyphomicrobium sp.
Hyphomicrobium vulgare
Mesorhizobium loti
Methylobacterium extorquens
Methylobacterium organophilum
Methylobacterium sp.
Methylocystis parvus
Methylosinus sporium
Methylosinus trichosporium
Nitrobacter winogradskyi
Prosthecomicrobium enhydrum
Rhodopseudomonas palustris
Seliberia stellata
Sinorhizobium meliloti
Starkeya novella
type II methanotrophic bacterium
Xanthobacter viscosus
Rhodobacterales
Hyphomonas oligotropha
Hyphomonas polymorpha
Paracoccus denitrificans
Paracoccus sp.
Paracoccus versutus
Rhodobacter capsulatus
Rhodobacter sphaeroides
Silicibacter pomeroyi
Rhodospirillales
Acetobacter aceti
Acetobacter pasteurianus
Acetobacter sp.
Acidiphilium acidophilum
Acidiphilium cryptum
Acidomonas methanolica
Azospirillum lipoferum
Gluconacetobacter xylinus
Gluconobacter oxydans
Rhodospirillum rubrum
Roseococcus thiosulfatophilus
Stella humosa
Rickettsiales
Anaplasma marginale
Anaplasma phagocytophilum
Candidatus Pelagibacter ubique
Ehrlichia chaffeensis
Ehrlichia ruminantium
Rickettsia conorii
Rickettsia felis
Rickettsia moozeri
Rickettsia prowazekii
Wolbachia endosymbiont of B. malayi
Wolbachia endosymbiont of D. melanogaster
Wolbachia pipientis
Sphingomonadales
Erythrobacter longus
Erythromicrobium ezovicum
Erythromicrobium hydrolyticum
Erythromicrobium ramosum
Sandaracinobacter sibiricus
Sphingomonas ursincola
Zymomonas mobilis
Unclassified alpha proteobacteria
Renobacter vaculatum
Vibrio adaptatus
Vibrio cyclosites
Tuberoidobacter mutans
Last updated: September 2005