Burkholderiales

{{Short description|Order of bacteria}}

{{Automatic taxobox

| image = Burkholderia pseudomallei 01.jpg

| image_alt = "Burkholderia pseudomallei" colonies on a blood agar plate

| image_caption = Burkholderia pseudomallei colonies on a blood agar plate

| taxon = Burkholderiales

| authority = Garrity et al., 2006

| synonyms =

| synonyms_ref =

| subdivision_ranks = Families

| subdivision_ref = {{cite web|author1=|title=Burkholderiales|url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Undef&id=80840&lvl=3&lin=f&keep=1&srchmode=1&unlock|website=NCBI taxonomy|publisher=National Center for Biotechnology Information|access-date=16 January 2019|location=Bethesda, MD|language=en}}

| subdivision =

• Alcaligenaceae
• Burkholderiaceae
• Comamonadaceae
• Oxalobacteraceae
• Sutterellaceae
• Burkholderiales incertae sedis
• Aquabacterium
• Aquincola
• Candidatus Branchiomonas
• Eleftheria
• Ideonella
• Inhella
• Leptothrix
• Methylibium
• Mitsuaria
• Paucibacter
• Piscinibacter
• Piscinibacterium
• Rhizobacter {{cite journal | vauthors = Stackebrandt E, Verbarg S, Fruhling A, Busse HJ, Tindall BJ | title = Dissection of the genus Methylibium: Reclassification of Methylibium fulvum as Rhizobacter fulvus comb. nov., Methylibium aquaticum as Piscinibacter aquaticus gen. nov., comb. nov. and Methylibium subsaxonicum as Rivibacter subsaxonicus gen. nov., comb. nov. and emended descriptions of the genera Rhizobacter and Methylibium | journal = Int J Syst Evol Microbiol | year = 2009 | volume = 59 | pages = 2552–2560 | doi = 10.1099/ijs.0.008383-0 | pmid = 19622640}}
• Rivibacter
• Roseateles
• Rubrivivax
• Sphaerotilus
• Tepidicella
• Tepidimonas
• Thiobacter
• Thiomonas
• Xylophilus

}}

The Burkholderiales are an order of Betaproteobacteria in the phylum Pseudomonadota.George M. Garrity: Bergey's Manual of Systematic Bacteriology. 2. Auflage. Springer, New York, 2005, Vol. 2: The Proteobacteria Part C: The Alpha-, Beta-, Delta-, and Epsilonproteabacteria {{ISBN|0-387-24145-0}} Like all Pseudomonadota, they are Gram-negative. They include several pathogenic bacteria, including species of Burkholderia, Bordetella, and Ralstonia. They also include Oxalobacter and related genera, which are unusual in using oxalic acid as their source of carbon. Other well-studied genera include Alcaligenes, Cupriavidus, Achromobacter, Comamonas, Delftia, Massilia, Duganella, Janthinobacterium, Polynucleobacter (important freshwater bacterioplankton), non-pathogenic Paraburkholderia, Caballeronia, Polaromonas, Thiomonas, Collimonas, Hydrogenophaga, Sphaerotilus, Variovorax, Acidovorax, Rubrivivax and Rhodoferax (both members of the photosynthetic purple nonsulfur bacteria), and Herbaspirillum (capable of nitrogen-fixation).