Rhizobiaceae

{{Automatic taxobox

| image = Agrobacterium-tumefaciens.png

| image_caption = Agrobacterium tumefaciens as it begins to infect a carrot cell

| taxon = Rhizobiaceae

| authority = Conn 1938

| subdivision_ranks = Genera

| subdivision_ref =

| subdivision = See text

}}

The Rhizobiaceae is a family of Pseudomonadota comprising multiple subgroups that enhance and hinder plant development.{{Cite book|url=https://books.google.com/books?id=2HToCAAAQBAJ&q=Rhizobiaceae&pg=PR13|title=The Rhizobiaceae: Molecular Biology of Model Plant-Associated Bacteria|last1=Spaink|first1=Herman P.|last2=Kondorosi|first2=Ádam|last3=Hooykaas|first3=Paul|date=2012-12-06|publisher=Springer Science & Business Media|isbn=9789401150606|language=en}} Some bacteria found in the family are used for plant nutrition and collectively make up the rhizobia. Other bacteria such as Agrobacterium tumefaciens and Rhizobium rhizogenes severely alter the development of plants in their ability to induce crown galls or hairy roots, respectively. The family has been of an interest to scientists for centuries in their ability to associate with plants and modify plant development. The Rhizobiaceae are, like all Pseudomonadota, Gram-negative. They are aerobic, and the cells are usually rod-shaped.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}}. Many species of the Rhizobiaceae are diazotrophs which are able to fix nitrogen and are symbiotic with plant roots.

Genera

Rhizobiaceae comprises the following genera:{{cite web|vauthors=Euzéby JP, Parte AC |url=https://lpsn.dsmz.de/family/rhizobiaceae |title=Rhizobiaceae |access-date=September 16, 2022 |publisher=List of Prokaryotic names with Standing in Nomenclature (LPSN)}}

Agrobacterium Conn 1942 (Approved Lists 1980)
Allorhizobium de Lajudie et al. 1998
Ciceribacter Kathiravan et al. 2013

Endobacterium Menéndez et al. 2021
Ensifer Casida 1982
Gellertiella Tóth et al. 2017
Georhizobium Cao et al. 2020
Hoeflea Peix et al. 2005
Lentilitoribacter Park et al. 2013
Liberibacter Fagen et al. 2014
Martelella Rivas et al. 2005
Mycoplana Gray and Thornton 1928 (Approved Lists 1980)
"Neopararhizobium" Hördt et al. 2020
Neorhizobium Mousavi et al. 2015
"Onobrychidicola" Ashrafi et al. 2022
Pararhizobium Mousavi et al. 2016
Peteryoungia Rahi et al. 2021
Pseudorhizobium Kimes et al. 2017
Rhizobium Frank 1889 (Approved Lists 1980)
Shinella An et al. 2006
Sinorhizobium Chen et al. 1988
Xaviernesmea Kuzmanović et al. 2022

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN). The phylogeny is based on whole-genome analysis.{{cite journal |last1=Hördt |first1=Anton |last2=López |first2=Marina García |last3=Meier-Kolthoff |first3=Jan P. |last4=Schleuning |first4=Marcel |last5=Weinhold |first5=Lisa-Maria |last6=Tindall |first6=Brian J. |last7=Gronow |first7=Sabine |last8=Kyrpides |first8=Nikos C. |last9=Woyke |first9=Tanja |last10=Göker |first10=Markus |title=Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria |journal=Frontiers in Microbiology |date=7 April 2020 |volume=11 |pages=468 |doi=10.3389/fmicb.2020.00468|pmid=32373076 |pmc=7179689 |doi-access=free }}

{{Clade | style=font-size:75%;line-height:75%

|1={{clade

|label1=Rhizobiaceae

|1={{clade

|1="Neopararhizobium"

|2={{clade

|1=Lentilitoribacter

|2=Hoeflea

}}

|2={{clade

|1={{clade

|1=Liberibacter