Biology:Aerophobota

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Aerophobota is a candidate bacterial phylum within the domain Bacteria. This phylum is found mainly in deep-sea, hydrocarbon-rich sediments, especially those associated with methane hydrates. Aerophobota is notable for its likely involvement in organic carbon and methane cycling in anoxic, deep ocean sediment environments.[1]

Taxonomy

The classification is based on genomic and metagenomic data without cultured isolates, and the name is not yet validly published under formal bacterial nomenclature.[1][2][3]

  • Class "Aerophobia" Chuvochina et al. 2023
    • Order "Aerophobales" Chuvochina et al. 2023
      • Family "Aerophobaceae" Chuvochina et al. 2023
        • Genus "Candidatus Aerophobus" Rinke et al. 2013
          • Species "Ca. A. profundus" Rinke et al. 2013

Ecology and function

Aerophobetes are abundant in hydrate-containing, silty sediment layers beneath the ocean floor and thrive in anoxic (oxygen-free) conditions.[4] Genetic analyses suggest they ferment organic matter, producing hydrogen and acetate, which can then be used by syntrophic methanogenic archaea to generate methane.[5] These metabolic interactions indicate Aerophobota's likely contribution to methane formation and carbon cycling in deep-sea ecosystems.[6][7]

Environmental and biotechnological importance

Research into Aerophobota and its functional roles is of interest because methane is a potent greenhouse gas.[8] Understanding these microbes could inform strategies for mitigating methane emissions from seafloor hydrates.[9]

See also

References

  1. ↑ 1.0 1.1 Rinke, C; Schwientek, P; Sczyrba, A; Ivanova, NN; Anderson, IJ; Cheng, JF; Darling, AE; Malfatti, S et al. (2013). "Insights into the phylogeny and coding potential of microbial dark matter". Nature 499 (7459): 431–437. doi:10.1038/nature12352. PMID 23851394. Bibcode: 2013Natur.499..431R. https://doi.org/10.1038/nature12352. Retrieved 12 November 2025. 
  2. ↑ Template:Lpsn3
  3. ↑ Schoch CL. "Aerophobota". National Center for Biotechnology Information (NCBI) taxonomy database. https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?command=show&mode=tree&id=1052815&lvl=3. Retrieved 2025-06-05. 
  4. ↑ Begmatov, Shahjahon; Savvichev, Alexander S.; Kadnikov, Vitaly V.; Beletsky, Alexey V.; Rusanov, Igor I.; Klyuvitkin, Alexey A.; Novichkova, Ekaterina A.; Mardanov, Andrey V. et al. (2021). "Microbial Communities Involved in Methane, Sulfur, and Nitrogen Cycling in the Sediments of the Barents Sea". Microorganisms 9 (11): 2362. doi:10.3390/microorganisms9112362. PMID 34835487. Bibcode: 2021Miorg...9.2362B. 
  5. ↑ Wang, Yong; Gao, Zhao-Ming; Li, Jiang-Tao; Bougouffa, Salim; Tian, Renmao; Bajic, Vladimir B.; Qian, Pei-Yuan (2016). "Draft genome of an Aerophobetes bacterium reveals a facultative lifestyle in deep-sea anaerobic sediments". Science Bulletin 61 (15): 1176–1186. doi:10.1007/s11434-016-1135-6. Bibcode: 2016SciBu..61.1176W. https://doi.org/10.1007/s11434-016-1135-6. Retrieved 12 November 2025. 
  6. ↑ Liu, Siwei; Yu, Shan; Lu, Xindi; Yang, Hailin; Li, Yuanyuan; Xu, Xuemin; Lu, Hailong; Fang, Yunxin (2022). "Microbial communities associated with thermogenic gas hydrate-bearing marine sediments in Qiongdongnan Basin, South China Sea". Frontiers in Microbiology 13. doi:10.3389/fmicb.2022.1032851. PMID 36386663. 
  7. ↑ Mara, Paraskevi; Geller-McGrath, David; Edgcomb, Virginia; Beaudoin, David; Morono, Yuki; Teske, Andreas P. (2023). "Metagenomic profiles of archaea and bacteria within thermal and geochemical gradients of the Guaymas Basin deep subsurface". Nature Communications 14 (1): 7767. doi:10.1038/s41467-023-43296-x. PMID 38012208. PMC 10689907. Bibcode: 2023NatCo..14.7768M. https://doi.org/10.1038/s41467-023-43296-x. Retrieved 12 November 2025. 
  8. ↑ Conrad, Ralf (2009). "The global methane cycle: recent advances in understanding the microbial processes involved". Environmental Microbiology Reports 1 (5): 285–292. doi:10.1111/j.1758-2229.2009.00038.x. PMID 23765881. Bibcode: 2009EnvMR...1..285C. https://doi.org/10.1111/j.1758-2229.2009.00038.x. Retrieved 12 November 2025. 
  9. ↑ Boetius, Antje; Wenzhöfer, Frank (2013). "Seafloor oxygen consumption fuelled by methane from cold seeps". Nature Geoscience 6 (9): 725–734. doi:10.1038/ngeo1926. Bibcode: 2013NatGe...6..725B. https://doi.org/10.1038/ngeo1926. Retrieved 12 November 2025. 

Wikidata ☰ Q26827898 entry



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