From search of external encyclopedias:
Alphaproteobacteria (Biology) [Alphaproteobacteria] Alphaproteobacteria or α-proteobacteria , also called α-Purple bacteria in earlier literature, ...
Caulobacter (Biology) [Alphaproteobacteria] ...
Caulobacteraceae (Biology) [Alphaproteobacteria] Family of bacteria ...
Temperatibacteraceae (Biology) [Alphaproteobacteria] Family of bacteria ...
Allofontibacter (Biology) [Bacteria genera] [Candidatus taxa] [Alphaproteobacteria] Allofontibacter (originally Fonsibacter ) is a genus of bacteria belonging to ...
Rhodobacterales (Category) [Alphaproteobacteria] ...
Phenylobacterium terrae (Biology) [Alphaproteobacteria] Species of bacterium ...
Algimonas arctica (Biology) [Alphaproteobacteria] Species of bacterium ...
Caulobacterales (Biology) [Alphaproteobacteria] Family of bacteria ...
Pelagibacteraceae (Biology) [Alphaproteobacteria] Order of bacteria ...
Rhodobacterales (Biology) [Alphaproteobacteria] [Rhodobacterales] Order of Alphaproteobacteria ...
Henriciella litoralis (Biology) [Alphaproteobacteria] Species of bacterium ...
Henriciella pelagia (Biology) [Alphaproteobacteria] Species of bacterium ...
Sneathiellaceae (Biology) [Alphaproteobacteria] Family of bacteria ...
Emcibacteraceae (Biology) [Alphaproteobacteria] Family of bacteria ...
Parvularcula (Biology) [Bacteria genera] [Alphaproteobacteria] Genus of bacteria ...
Pelagibacterales (Biology) [Candidatus taxa] [Alphaproteobacteria] Order of bacteria ...
Hyphomicrobiales (Category) [Alphaproteobacteria] ...
Caulobacter crescentus (Biology) [Alphaproteobacteria] Species of bacterium ...
Brevundimonas terrae (Biology) [Alphaproteobacteria] Species of bacterium ...
Brevundimonas balnearis (Biology) [Alphaproteobacteria] Species of bacterium ...
Marinicauda pacifica (Biology) [Alphaproteobacteria] Species of bacterium ...
Glycocaulis profundi (Biology) [Alphaproteobacteria] Species of bacterium ...
Henriciella marina (Biology) [Alphaproteobacteria] Species of bacterium ...
Henriciella aquimarina (Biology) [Alphaproteobacteria] Species of bacterium ...
Minwuia thermotolerans (Biology) [Alphaproteobacteria] Family of bacteria ...
Holosporales (Biology) [Alphaproteobacteria] Family of bacteria ...
Tetracoccus (Biology) [Alphaproteobacteria] [Bacteria genera] Bacterium; Genus of bacteria ...
Holospora (Biology) [Bacteria genera] [Alphaproteobacteria] Family of bacteria ...
Micropepsaceae (Biology) [Bacteria families] [Alphaproteobacteria] Family of bacteria ...