{{Short description|Genus of bacteria}} {{Italic title}} {{Automatic taxobox | name = ''Methylorubrum'' | taxon = Methylorubrum | authority = Green and Ardley 2018<ref name="LPSN">{{cite web|vauthors=Euzéby JP, Parte AC |url=https://lpsn.dsmz.de/genus/methylorubrum |title=''Methylorubrum'' |access-date=May 21, 2021 |publisher=List of Prokaryotic names with Standing in Nomenclature (LPSN)}}</ref> | type_species = ''Methylorubrum extorquens'' | type_species_authority = (Urakami and Komagata 1984) Green and Ardley 2018<ref name="Methylorubrum">{{cite journal |vauthors=Green PN, Ardley JK | title = Review of the genus ''Methylobacterium'' and closely related organisms: A proposal that some ''Methylobacterium'' species be reclassified into a new genus, ''Methylorubrum'' gen. nov. | journal = Int J Syst Evol Microbiol | year = 2018 | volume = 68 | issue = 9 | pages = 2727–2748| doi = 10.1099/ijsem.0.002856 | pmid = 30024371 | doi-access = free }}</ref> | subdivision_ranks = Species | subdivision = * ''Methylorubrum aminovorans'' <small>(Urakami ''et al''. 1993) Green and Ardley 2018</small> * ''Methylorubrum extorquens'' <small>(Urakami and Komagata 1984) Green and Ardley 2018</small> * ''Methylorubrum podarium'' <small>(Anesti ''et al''. 2006) Green and Ardley 2018</small> * ''Methylorubrum populi'' <small>(Van Aken ''et al''. 2004) Green and Ardley 2018</small> * ''Methylorubrum pseudosasae'' <small>(Madhaiyan and Poonguzhali 2016) Green and Ardley 2018</small> * ''Methylorubrum rhodesianum'' <small>(Green ''et al''. 1988) Green and Ardley 2018</small> * ''Methylorubrum rhodinum'' <small>(Heumann 1962) Green and Ardley 2018</small> * ''Methylorubrum salsuginis'' <small>(Wang ''et al''. 2007) Green and Ardley 2018</small> * ''Methylorubrum suomiense'' <small>(Doronina ''et al''. 2002) Green and Ardley 2018</small> * ''Methylorubrum thiocyanatum'' <small>(Wood ''et al''. 1999) Green and Ardley 2018</small> * ''Methylorubrum zatmanii'' <small>(Green ''et al''. 1988) Green and Ardley 2018</small> | synonyms_ref = <ref name="LPSN"/> | synonyms = * ''Protomonas'' <small>Urakami and Komagata 1984</small> }}
'''''Methylorubrum''''' is a genus of bacteria from the family ''Methylobacteriaceae''.<ref name="Methylorubrum"/> The taxonomic validity of '''''Methylorubrum''''' is debated.<ref name="MethyloDebate">{{cite journal |vauthors=Alleman AB, Stolyar S, Marx CJ, Leducq JB | title = Led astray by 16S rRNA: phylogenomics reaffirms the monophyly of ''Methylobacterium'' and lack of support for ''Methylorubrum'' as a genus | journal = ISME J | year = 2025 | volume = 19 | doi = 10.1093/ismejo/wraf011 | pmid = 39834026 | doi-access = free | pmc = 11833323 }}</ref>
In 2018, 11 '''''Methylobacterium''''' species, including ''Methylobacterium extorquens'', were transferred to '''''Methylorubrum'''''.<ref name="Methylorubrum"/> This emendation mostly relied on the 16S rRNA gene phylogeny. In 2021 and 2022, two studies based on phylogenomic and phenotypic data independently pointed the lack of support for '''''Methylorubrum''''' as a distinct genus, calling for its abandonment and the reinstatement of the former '''''Methylobacterium''''' taxonomy.<ref name="MethyloPhylo">{{cite journal |vauthors=Leducq JB, Sneddon D, Santos M, Condrain Morel D, Bourret G, Martinez Gomez NC, Lee JA, Foster JA, Stolyar S, Shapiro BJ, Kembel SW, Sullivan JM, Marx CJ | title = Comprehensive Phylogenomics of "Methylobacterium" Reveals Four Evolutionary Distinct Groups and Underappreciated Phyllosphere Diversity | journal = GBE | year = 2022 | volume = 14 | issue = 8 | doi = 10.1093/gbe/evac123 | pmid = 35906926 | doi-access = free | pmc = 9364378 }}</ref><ref name="MethyloPheno">{{cite journal |vauthors=Alessa O, Ogura Y, Fujitani Y, Takami H , Hayashi T , Sahin N, Tani A | title = Comprehensive Comparative Genomics and Phenotyping of Methylobacterium Species | journal = Front Microbiol | year = 2021 | volume = 12 | doi = 10.3389/fmicb.2021.740610 | pmid = 34737731 | doi-access = free | pmc = 8561711 }}</ref> In 2025, despite controversy, and its emendation back to the original ''Methylobacterium'' taxonomy,<ref name="MethyloPheno"/> ''Methylorubrum'' was still a valid genus name in some databases like NCBI and in the List of Prokaryotic names with Standing in Nomenclature.<ref name="MethyloDebate"/>
==References== {{Reflist}}
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Category:Hyphomicrobiales Category:Bacteria genera
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