Mariprofundus ferrooxydans

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Mariprofundus ferrooxydans
Scientific classification
Domain: Bacteria
Phylum: Proteobacteria
Class: Zetaproteobacteria
Order: Mariprofundales
Family: Mariprofundaceae
Genus: Mariprofundus
Species: M. ferrooxydans
Binomial name
Mariprofundus ferrooxydans
(Emerson et al. 2010)

Mariprofundus ferrooxydans is a neutrophilic chemolithotrophic gram-negative bacterium which can grow by oxidising ferrous to ferric iron.[1] It is the sole member of the class Zetaproteobacteria in the phylum Proteobacteria[2]


Yellow iron oxide-covered lava rock on the flank of Lōʻihi

The bacterium was isolated from iron-rich microbial mats associated with hydrothermal vents at a submarine volcano, Lōʻihi Seamount, near Hawai'i and has only 85.3% 16S similarity to its nearest cultivated species Methylophaga marina. It has a doubling time at 23°C of 12 hours and a curved rod (approximately 0.5×2–5 µm) morphology.[1]


Despite being validly published,[3] the etymology of the generic epithet is grammatically incorrect, being a concatenation of the Latin neutral mare -is (the sea) with the Latin masculine adjective profundus (deep) intended to mean a deep-sea organism (the neutral form of profundus is profundum).[2] The specific epithet is ferrum (Latin noun), iron and oxus (Greek adjective), acid or sour, and in combined words indicating oxygen. (N.L. v. oxydare, to make acid, to oxidize; N.L. part. adj. ferrooxydans, iron-oxidizing.)[2]

See also[edit]


  1. ^ a b Emerson, D.; Rentz, J. A.; Lilburn, T. G.; Davis, R. E.; Aldrich, H.; Chan, C.; Moyer, C. L. (2007). "A Novel Lineage of Proteobacteria Involved in Formation of Marine Fe-Oxidizing Microbial Mat Communities". In Reysenbach, Anna-Louise. PLoS ONE 2 (8): e667. Bibcode:2007PLoSO...2..667E. doi:10.1371/journal.pone.0000667. PMC 1930151. PMID 17668050.  edit
  2. ^ a b c Mariprofundus entry in LPSN [Euzéby, J.P. (1997). "List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet". Int J Syst Bacteriol 47 (2): 590–2. doi:10.1099/00207713-47-2-590. ISSN 0020-7713. PMID 9103655. ]
  3. ^ VALIDATION LIST N° 135. Int. J. Syst. Evol. Microbiol., 2010, 60, 1985-1986