Zetaproteobacteria

Zetaproteobacteria
Scientific classification
Domain:
Phylum:
Class:
Zetaproteobacteria

Makita et al. 2017
Order:
Mariprofundales

Makita et al. 2017
Family:
Mariprofundaceae

Hördt et al. 2020
Genera
Synonyms
  • "Mariprofundia" Cavalier-Smith 2020

The class Zetaproteobacteria is the sixth and most recently described class of the Pseudomonadota.[1] Zetaproteobacteria can also refer to the group of organisms assigned to this class. The Zetaproteobacteria were originally represented by a single described species, Mariprofundus ferrooxydans,[2] which is an iron-oxidizing neutrophilic chemolithoautotroph originally isolated from Kamaʻehuakanaloa Seamount (formerly Loihi) in 1996 (post-eruption).[1][3] Molecular cloning techniques focusing on the small subunit ribosomal RNA gene have also been used to identify a more diverse majority of the Zetaproteobacteria that have as yet been unculturable.[4]

Regardless of culturing status, the Zetaproteobacteria show up worldwide in estuarine and marine habitats associated with opposing steep redox gradients of reduced (ferrous) iron and oxygen, either as a minor detectable component or as the dominant member of the microbial community.[5][6][7][8][9][10] Zetaproteobacteria have been most commonly found at deep-sea hydrothermal vents,[4] though recent discovery of members of this class in near-shore environments has led to the reevaluation of Zetaproteobacteria distribution and significance.[11][12][13]

Microbial mats encrusted with iron oxide on the flank of Kamaʻehuakanaloa Seamount, Hawaii. Microbial communities in this type of habitat can harbor microbial communities dominated by the iron-oxidizing Zetaproteobacteria.
  1. ^ a b Emerson, D.; Rentz, J. A.; Lilburn, T. G.; Davis, R. E.; Aldrich, H.; Chan, C.; Moyer, C. L. (2007). Reysenbach, Anna-Louise (ed.). "A Novel Lineage of Proteobacteria Involved in Formation of Marine Fe-Oxidizing Microbial Mat Communities". PLOS ONE. 2 (8): e667. Bibcode:2007PLoSO...2..667E. doi:10.1371/journal.pone.0000667. PMC 1930151. PMID 17668050.
  2. ^ mariprofundus in LPSN; Parte, Aidan C.; Sardà Carbasse, Joaquim; Meier-Kolthoff, Jan P.; Reimer, Lorenz C.; Göker, Markus (1 November 2020). "List of Prokaryotic names with Standing in Nomenclature (LPSN) moves to the DSMZ". International Journal of Systematic and Evolutionary Microbiology. 70 (11): 5607–5612. doi:10.1099/ijsem.0.004332.
  3. ^ Emerson, D.; Moyer, C. L. (2002). "Neutrophilic Fe-oxidizing bacteria are abundant at the Loihi Seamount hydrothermal vents and play a major role in Fe oxide deposition". Applied and Environmental Microbiology. 68 (6): 3085–3093. Bibcode:2002ApEnM..68.3085E. doi:10.1128/AEM.68.6.3085-3093.2002. PMC 123976. PMID 12039770.
  4. ^ a b McAllister, S. M.; Davis, R. E.; McBeth, J. M.; Tebo, B. M.; Emerson, D.; Moyer, C. L. (2011). "Biodiversity and Emerging Biogeography of the Neutrophilic Iron-Oxidizing Zetaproteobacteria". Applied and Environmental Microbiology. 77 (15): 5445–5457. Bibcode:2011ApEnM..77.5445M. doi:10.1128/AEM.00533-11. PMC 3147450. PMID 21666021.
  5. ^ Schauer, R.; Røy, H.; Augustin, N.; Gennerich, H. H.; Peters, M.; Wenzhoefer, F.; Amann, R.; Meyerdierks, A. (2011). "Bacterial sulfur cycling shapes microbial communities in surface sediments of an ultramafic hydrothermal vent field" (PDF). Environmental Microbiology. 13 (10): 2633–2648. Bibcode:2011EnvMi..13.2633S. doi:10.1111/j.1462-2920.2011.02530.x. PMID 21895907.
  6. ^ Hodges, T. W.; Olson, J. B. (2008). "Molecular Comparison of Bacterial Communities within Iron-Containing Flocculent Mats Associated with Submarine Volcanoes along the Kermadec Arc". Applied and Environmental Microbiology. 75 (6): 1650–1657. doi:10.1128/AEM.01835-08. PMC 2655482. PMID 19114513.
  7. ^ Davis, R. E.; Stakes, D. S.; Wheat, C. G.; Moyer, C. L. (2009). "Bacterial Variability within an Iron-Silica-Manganese-rich Hydrothermal Mound Located Off-axis at the Cleft Segment, Juan de Fuca Ridge". Geomicrobiology Journal. 26 (8): 570–580. Bibcode:2009GmbJ...26..570D. doi:10.1080/01490450902889080. S2CID 53621745.
  8. ^ Forget, N. L.; Murdock, S. A.; Juniper, S. K. (2010). "Bacterial diversity in Fe-rich hydrothermal sediments at two South Tonga Arc submarine volcanoes". Geobiology. 8 (5): 417–432. Bibcode:2010Gbio....8..417F. doi:10.1111/j.1472-4669.2010.00247.x. PMID 20533949. S2CID 807482.
  9. ^ Handley, K. M.; Boothman, C.; Mills, R. A.; Pancost, R. D.; Lloyd, J. R. (2010). "Functional diversity of bacteria in a ferruginous hydrothermal sediment". The ISME Journal. 4 (9): 1193–1205. Bibcode:2010ISMEJ...4.1193H. doi:10.1038/ismej.2010.38. PMID 20410934.
  10. ^ Kato, S.; Yanagawa, K.; Sunamura, M.; Takano, Y.; Ishibashi, J. I.; Kakegawa, T.; Utsumi, M.; Yamanaka, T.; Toki, T.; Noguchi, T.; Kobayashi, K.; Moroi, A.; Kimura, H.; Kawarabayasi, Y.; Marumo, K.; Urabe, T.; Yamagishi, A. (2009). "Abundance of Zetaproteobacteria within crustal fluids in back-arc hydrothermal fields of the Southern Mariana Trough". Environmental Microbiology. 11 (12): 3210–3222. Bibcode:2009EnvMi..11.3210K. doi:10.1111/j.1462-2920.2009.02031.x. PMID 19691504.
  11. ^ McBeth, J. M.; Little, B. J.; Ray, R. I.; Farrar, K. M.; Emerson, D. (2010). "Neutrophilic Iron-Oxidizing "Zetaproteobacteria" and Mild Steel Corrosion in Nearshore Marine Environments". Applied and Environmental Microbiology. 77 (4): 1405–1412. doi:10.1128/AEM.02095-10. PMC 3067224. PMID 21131509.
  12. ^ McBeth, J. M.; Fleming, E. J.; Emerson, D. (2013). "The transition from freshwater to marine iron-oxidizing bacterial lineages along a salinity gradient on the Sheepscot River, Maine, USA". Environmental Microbiology Reports. 5 (3): 453–63. Bibcode:2013EnvMR...5..453M. doi:10.1111/1758-2229.12033. PMID 23754725.
  13. ^ McAllister, S. M.; Barnett, J. M.; Heiss, J. W.; Findlay, A. J.; MacDonald, D. J.; Dow, C. L.; Luther, G. W.; Michael, H. A.; Chan, C. S. (2015). "Dynamic hydrologic and biogeochemical processes drive microbially enhanced iron and sulfur cycling within the intertidal mixing zone of a beach aquifer". Limnology and Oceanography. 60 (1): 329–345. Bibcode:2015LimOc..60..329M. doi:10.1002/lno.10029.

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