Magnetococcus marinus

Magnetococcus marinus
Scientific classification
Domain:	Bacteria
Phylum:	Proteobacteria
Class:	Alphaproteobacteria
Order:	Magnetococcales
Family:	Magnetococcaceae
Genus:	Magnetococcus
Species:	M. marinus
Binomial name
	Magnetococcus marinus; Bazylinski et al. 2013

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.^[1] The Magnetococcus marinus grows chemolithoautotrophically with thiosulfate and chemoorganoheterotrophically on acetate.^[2]

It is a basal group in the Alphaproteobacteria.

Schematic ribosomal RNA phylogeny of Alphaproteobacteria

Magnetococcidae

Magnetococcus marinus

Caulobacteridae

	Rhodospirillales, Sphingomonadales, Rhodobacteraceae, Hyphomicrobiales, etc.

	Holosporales

Rickettsidae

Pelagibacterales

Pelagibacteraceae

	Pelagibacter

Subgroups Ib, II, IIIa, IIIb, IV and V

Rickettsiales

Proto-mitochondria

Anaplasmataceae

	Ehrlichia

	Anaplasma

Wolbachia

Neorickettsia

Midichloriaceae

	Midichloria

Rickettsiaceae

	Rickettsia

	Orientia

The cladogram of Rickettsidae has been inferred by Ferla et al. ^[3] from the comparison of 16S + 23S ribosomal RNA sequences.

References[]

^ ^a ^b Bazylinski, D. A.; Williams, T. J.; Lefevre, C. T.; Berg, R. J.; Zhang, C. L.; Bowser, S. S.; Dean, A. J.; Beveridge, T. J. (2012). "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". International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 3): 801–8. doi:10.1099/ijs.0.038927-0. PMID 22581902.
^ Wang, Dong-Sheng; Erihemu; Yang, Bin (2019). "Diversity of bacterial communities in the rhizosphere of the endangered plant, Paeonia jishanensis". Archives of Biological Sciences. 71 (3): 525–531. doi:10.2298/abs190203036w.
^ Ferla MP, Thrash JC, Giovannoni SJ, Patrick WM (2013). "New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability". PLOS ONE. 8 (12): e83383. Bibcode:2013PLoSO...883383F. doi:10.1371/journal.pone.0083383. PMC 3859672. PMID 24349502.

External links[]

Type strain of Magnetococcus marinus at BacDive - the Bacterial Diversity Metadatabase

[Bazylinski-1] Bazylinski, D. A.; Williams, T. J.; Lefevre, C. T.; Berg, R. J.; Zhang, C. L.; Bowser, S. S.; Dean, A. J.; Beveridge, T. J. (2012). "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". International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 3): 801–8. doi:10.1099/ijs.0.038927-0. PMID 22581902.

[2] Wang, Dong-Sheng; Erihemu; Yang, Bin (2019). "Diversity of bacterial communities in the rhizosphere of the endangered plant, Paeonia jishanensis". Archives of Biological Sciences. 71 (3): 525–531. doi:10.2298/abs190203036w.

[Ferla2013-3] Ferla MP, Thrash JC, Giovannoni SJ, Patrick WM (2013). "New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability". PLOS ONE. 8 (12): e83383. Bibcode:2013PLoSO...883383F. doi:10.1371/journal.pone.0083383. PMC 3859672. PMID 24349502.

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