Metabacterium

{{Short description|Genus of bacteria}}

{{Taxobox

| color = lightgrey

| domain = Bacteria

| phylum = Bacillota

| classis = Clostridia

| ordo = incertae sedis

| familia = incertae sedis

| genus = Metabacterium{{cite web |author=J.P. Euzéby |url=https://lpsn.dsmz.de/genus/Metabacterium |title=Metabacterium |access-date=2022-09-09 |publisher=List of Prokaryotic names with Standing in Nomenclature (LPSN)}}{{cite web |author=Sayers |url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=38777&lvl=3&lin=f&keep=1&srchmode=1&unlock |title=Metabacterium |access-date=2022-09-09 |publisher=National Center for Biotechnology Information (NCBI) taxonomy database |display-authors=et al.}}

| genus_authority = Chatton & Perard 1913

| type_species = Metabacterium polyspora

| type_species_authority = Chatton & Perard 1913

| subdivision_ranks = Species

| subdivision =

• M. polyspora

}}

Metabacterium polyspora is an unusual multiple endospore-producing bacterium isolated from the cecum of guinea pigs.{{cite journal |vauthors=Chatton E, Perard C | title = Schizophytes du caecum du cobaye. II. Metabacterium polyspora n. g., n. s. | journal = C.R. Hebd. Soc. Biol. | volume = 74 | issue = 156 | pages = 1232–34 | year = 1913 }} This bacterium is physically similar to the phylogenetically related surgeonfish intestinal symbiont Epulopiscium fishelsoni.{{cite journal |vauthors=Angert ER, Brook AE, Pace NR | title = Phylogenetic Analysis of Metabacterium polyspora: Clues to the Evolutionary Origin of Daughter Cell Production in Epulopiscium Species, the Largest Bacteria| url= | journal = J Bacteriol | volume = 178 | issue = 5| pages = 1451–56 | year = 1996 | doi = 10.1128/jb.178.5.1451-1456.1996| pmid = 8631724 | pmc = 177821 }}