Caulobacteraceae

{{Short description|Family of bacteria}}

{{automatic taxobox

| image = Caulobacter crescentus.jpg

| image_caption = Caulobacter crescentus

| taxon = Caulobacteraceae

| authority = Henrici and Johnson 1935 (Approved Lists 1980)

| subdivision_ranks = Genera

| subdivision =

• Aquidulcibacter Cai et al. 2018
• Asticcacaulis Poindexter 1964 (Approved Lists 1980)
• Brevundimonas Segers et al. 1994
• Caulobacter Henrici and Johnson 1935 (Approved Lists 1980)
• Phenylobacterium Lingens et al. 1985
• Terricaulis Vieira et al. 2020

}}

Caulobacteraceae is a family of Pseudomonadota 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. {{ISBN|978-0-387-24145-6}}. Like all Pseudomonadota, the Caulobacteraceae are gram-negative. Caulobacteraceae includes the genera Asticcacaulis, Brevundimonas, Phenylobacterium and Caulobacter.{{cite web | last=Euzéby| first=J. P. | url=https://lpsn.dsmz.de/family/caulobacteraceae | title=List of Prokaryotic Names with Standing in Nomenclature | access-date=March 28, 2014}}

The type species Caulobacter gives its name also to the recently proposed subclass, the Caulobacteridae, which includes the orders Caulobacterales, Parvularculales, Hyphomicrobiales, Rhodobacterales, Rhodospirillales, Sneathiellales, Sphingomonadales, Kiloniellales, Kordiimonadales and controversially the Holosporales.{{Cite journal | pmid = 24349502 | pmc = 3859672 | year = 2013 | last1 = Ferla | first1 = M. P. | title = New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability | journal = PLOS ONE | volume = 8 | issue = 12 | pages = e83383 | last2 = Thrash | first2 = J. C. | last3 = Giovannoni | first3 = S. J. | last4 = Patrick | first4 = W. M. | doi = 10.1371/journal.pone.0083383| doi-access = free }}