Auribacterota
| Auribacterota | |
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| Phylum: | Auribacterota Williams et al. 2022
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Auribacterota is a candidate bacterial phylum of uncultured anaerobes first found in gold mine fluids. The name comes from Latin aurum (gold). It is known only from metagenomes.[1][2]
These bacteria are strict fermenters. They eat sugars and amino acids, and make H2 and H2S. No oxygen is used. Some of these bacteria have gas vesicles or pili.[2]
The bacteria live in anoxic water columns, sediments, and subsurface. They are common in Ace Lake, Antarctica (up to 4% of microbes).[2] They help break down dead stuff and cycle sulfur.[3]
There are four candidate classes. Type species: "Candidatus Auribacter fodinae".
Phylogeny
The phylum Auribacterota is not validly published and remains a candidate phylum. It was proposed by Williams et al. (2022) based on metagenome-assembled genomes (MAGs) from Ace Lake, a meromictic lake in Antarctica. The taxonomy includes four candidate classes, each containing novel genera and species identified from high-quality MAGs. Phylogenetic analyses place Auribacterota among the "microbial dark matter" phyla, distinct from well-characterized bacterial lineages.
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[1] and National Center for Biotechnology Information (NCBI).[4]
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See also
References
- ^ a b Auribacterota in LPSN; Freese, H. M.; Meier-Kolthoff, J. P.; Sardà Carbasse, J.; Afolayan, A. O.; Göker, M. (29 October 2025). "TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity". Nucleic Acids Research. 53: D1–D12. doi:10.1093/nar/gkaf1110.
- ^ a b c Williams, Timothy J.; Allen, Michelle A.; Panwar, Pratibha; Cavicchioli, Ricardo (May 2022). "Into the darkness: the ecologies of novel 'microbial dark matter' phyla in an Antarctic lake". Environmental Microbiology. 24 (5): 2576–2603. Bibcode:2022EnvMi..24.2576W. doi:10.1111/1462-2920.16026. ISSN 1462-2920. PMC 9324843. PMID 35466505.
- ^ Momper, Lily; Jungbluth, Sean P.; Lee, Michael D.; Amend, Jan P. (October 2017). "Energy and carbon metabolisms in a deep terrestrial subsurface fluid microbial community". The ISME Journal. 11 (10): 2319–2333. Bibcode:2017ISMEJ..11.2319M. doi:10.1038/ismej.2017.94. ISSN 1751-7370. PMC 5607374. PMID 28644444.
- ^ Schoch CL; et al. "Auribacterota". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2025-06-05.
- ^ "GTDB release 10-RS226". Genome Taxonomy Database. Retrieved 1 May 2025.
- ^ "bac120_r226.sp_label". Genome Taxonomy Database. Retrieved 1 May 2025.
- ^ "Taxon History". Genome Taxonomy Database. Retrieved 1 May 2025.