Abyssobacteria
| Abyssobacteria | |
|---|---|
| Scientific classification | |
| Domain: | Bacteria |
| Kingdom: | incertae sedis |
| Informal group: | Candidate phyla radiation |
| Phylum: | Abyssobacteria Dedysh & Yilmaz, 2018 |
| Genera | |
| |
Abyssobacteria is a phylum of bacteria in the Patescibacteria group, characterized by small genomes and deep-branching phylogeny.[1]
Etymology
The name ''Abyssobacteria'' derives from Latin ''abyssus'' (deep) and ''bacteria'', referring to their prevalence in deep subsurface habitats.[2]
Characteristics
Abyssobacteria are characterized by ultra-small cell sizes (typically <0.2 μm), reduced metabolic pathways, and dependence on host bacteria for nutrients, often in anoxic aquifers and deep subsurface sediments.[3] They exhibit limited fermentation capabilities and lack many biosynthetic genes, reflecting their parasitic or symbiotic lifestyles.
References
- ^ Momper, Lily; Aronson, Heidi S.; Amend, Jan P. (2018). "Genomic Description of 'Candidatus Abyssubacteria,' a Novel Subsurface Lineage Within the Candidate Phylum Hydrogenedentes". Frontiers in Microbiology. 9 1993. doi:10.3389/fmicb.2018.01993. ISSN 1664-302X. PMC 6121073. PMID 30210471.
- ^ "Class: Abyssubacteria". lpsn.dsmz.de. Retrieved 2025-10-28.
- ^ Attar, Naomi (August 2015). "An intriguing new bacterial phylum". Nature Reviews Microbiology. 13 (8): 459. doi:10.1038/nrmicro3534. ISSN 1740-1534.