Fidelibacterota
| Fidelibacterota | |
|---|---|
| Scientific classification | |
| Domain: | Bacteria |
| Kingdom: | incertae sedis |
| Phylum: | Fidelibacterota |
| Class: | Fidelibacteria Katayama et al. 2024 |
| Order: | Fidelibacterales Katayama et al. 2024 |
| Family: | Fidelibacteraceae Katayama et al. 2024 |
| Genus: | Fidelibacter Katayama et al. 2024 |
| Species: | F. multiformis |
| Binomial name | |
| Fidelibacter multiformis Katayama et al. 2024 | |
| Synonyms | |
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Fidelibacterota is a phylum of incertae sedis bacteria, previously known as "Candidatus Marinimicrobia". The only species classified therein is Fidelibacter multiformis. They have been found mainly at great depths such as the Challenger Deep, the Mariana Trench, and the Puerto Rico Trench. This phylum has a low representation in shallow pelagic samples and high abundance in deep samples. Although these bacteria are often associated with low dissolved oxygen environments, very little is known about their ecology and metabolic functions. Fidelibacterota is one of the two valid bacterial phyla that does not belong to any kingdom, the other being Vulcanimicrobiota.