Caulobacteraceae is a family of

Pseudomonadota Pseudomonadota (synonym Proteobacteria) is a major phylum of Gram-negative bacteria. The renaming of phyla in 2021 remains controversial among microbiologists, many of whom continue to use the earlier names of long standing in the literature. The ...

within the alpha subgroup.Garrity, George M.; Brenner, Don J.; Krieg, Noel R.; Staley, James T. (eds.) (2005). Bergey's Manual of Systematic Bacteriology, Volume Two: The Proteobacteria, Part C: The Alpha-, Beta-, Delta-, and Epsilonproteobacteria. New York, New York: Springer. . Like all

, the Caulobacteraceae are

gram-negative Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wa ...

. Caulobacteraceae includes the genera ''

Asticcacaulis The ''Asticcacaulis'' are a genus of bacteria. Etymology The name ''Asticcacaulis'' derives from: Greek prefix ''a'', not; New Latin noun ''sticca'', stick; Latin masculine gender noun ''caulis'', stalk; Latin masculine gender In li ...

'', ''

Brevundimonas The ''Brevundimonas'' are a genus of bacteria. They are Gram-negative, non-fermenting, aerobic bacilli. The ''Brevundimonas'' species are ubiquitous in the environment but are rarely isolated from clinical samples., although numbers are increasi ...

'', ''

Phenylobacterium ''Phenylobacterium'' is a Gram negative, strictly aerobic non-motile and bacterial genus from the family of Caulobacteraceae Caulobacteraceae is a family of Pseudomonadota within the alpha subgroup.Garrity, George M.; Brenner, Don J.; Krieg, ...

'' and ''

Caulobacter ''Caulobacter'' is a genus of Gram-negative bacteria in the class Alphaproteobacteria. Its best-known member is ''Caulobacter crescentus'', an organism ubiquitous in freshwater lakes and rivers; many members of the genus are specialized to Trophi ...

''. The typespecies ''Caulobacter'' gives its name also to the recently proposed subclass, the ''Caulobacteridae'', which includes the orders ''Caulobacterales'', '' Parvularculales'', ''

Hyphomicrobiales The ''Hyphomicrobiales'' are an order of Gram-negative Alphaproteobacteria. The rhizobia, which fix nitrogen and are symbiotic with plant roots, appear in several different families. The four families ''Nitrobacteraceae'', '' Hyphomicrobiacea ...

'', ''

Rhodobacterales Rhodobacterales are an order of the Alphaproteobacteria. Gene transfer agents are viruslike elements produced by Rhodobacterales which transfer DNA and may be an important factor in their evolution. Etymology From Greek ''rhodon'', the rose ...

'', ''

Rhodospirillales The Rhodospirillales are an order of Pseudomonadota. Notable Families The '' Acetobacteraceae'' comprise the acetic acid bacteria, which are heterotrophic and produce acetic acid during their respiration.Garrity, George M.; Brenner, Don J.; ...

'', '' Sneathiellales'', '' Sphingomonadales'', ''

Kiloniellales The Rhodospirillales are an order of Pseudomonadota. Notable Families The ''Acetobacteraceae'' comprise the acetic acid bacteria, which are heterotrophic and produce acetic acid during their respiration.Garrity, George M.; Brenner, Don J.; Kr ...

'', '' Kordiimonadales'' and controversially the '' Holosporales''.

References

Caulobacterales {{alphaproteobacteria-stub