Magnetococcus marinus

{{Short description|Species of bacterium}}

{{Taxobox

| domain = Bacteria

| phylum = Pseudomonadota

| classis = Alphaproteobacteria

| ordo = Magnetococcales

| familia = Magnetococcaceae

| genus = Magnetococcus

| species = M. marinus

| binomial = Magnetococcus marinus

| binomial_authority = Bazylinski et al. 2013{{Cite journal | doi = 10.1099/ijs.0.038927-0| title = Magnetococcus marinus gen. nov., sp. nov., a marine, magnetotactic bacterium that represents a novel lineage (Magnetococcaceae fam. nov., Magnetococcales ord. nov.) at the base of the Alphaproteobacteria| journal = International Journal of Systematic and Evolutionary Microbiology| volume = 63| issue = Pt 3| pages = 801–8| year = 2012| last1 = Bazylinski | first1 = D. A.| last2 = Williams | first2 = T. J.| last3 = Lefevre | first3 = C. T.| last4 = Berg | first4 = R. J.| last5 = Zhang | first5 = C. L.| last6 = Bowser | first6 = S. S.| last7 = Dean | first7 = A. J.| last8 = Beveridge | first8 = T. J. | pmid=22581902}}

}}

Magnetococcus marinus is a species of Alphaproteobacteria that has the peculiar ability to form a structure called a magnetosome, a membrane-encased, single-magnetic-domain mineral crystal formed by biomineralisation, which allows the cells to orient along the Earth’s geomagnetic field. The Magnetococcus marinus grows chemolithoautotrophically with thiosulfate and chemoorganoheterotrophically on acetate.{{Cite journal|last=Wang|first=Dong-Sheng|last2=Erihemu|last3=Yang|first3=Bin|date=2019|title=Diversity of bacterial communities in the rhizosphere of the endangered plant, Paeonia jishanensis|url=http://www.doiserbia.nb.rs/Article.aspx?ID=0354-46641900036W|journal=Archives of Biological Sciences|volume=71|issue=3|pages=525–531|doi=10.2298/abs190203036w|doi-access=free}}

It is a basal group in the Alphaproteobacteria.