// Workers AI · dad joke modeWhat did Natronococcus say? "I'm a salt of the earth microbe.
| Natronococcus | |
|---|---|
Scientific classification  | |
| Domain: | Archaea |
| Kingdom: | Methanobacteriati |
| Phylum: | Methanobacteriota |
| Class: | Halobacteria |
| Order: | Natrialbales |
| Family: | Natrialbaceae |
| Genus: | Natronococcus Tindall et al. 1984[citation needed] |
| Type species | |
| Natronococcus occultus Tindall et al. 1984 | |
| Species | |
Natronococcus is a genus of archaeans in the family the Natrialbaceae.[1]
Description and significance
[edit]This haloalkaliphilic archaeon is in the same family as microorganisms like Halobacterium. Study of Natronococcus continues to explore what enzymes are present in order to survive in these conditions, especially since there has not been much literature about enzymes of haloalkaliphiles.
Genome structure
[edit]The G + C content for the major chromosome is 64.0% while the minor component has a 55.7% content. The approximate size of the plasmid is 144 kbp.
Cell structure and metabolism
[edit]Natronococcus is a heterotrophic, aerobic organism that can use sugars as an energy source to stimulate growth. It can fix nitrogen from casamino acids and reduces nitrates to nitrites.
Cells are non-motile and occur in irregular clusters, pairs, and single cells. The cell is coccoid in shape and 1–2 micrometres in diameter. colonies are pale brown and circular.[2]
Ecology
[edit]N. occultus has been isolated from the soda lake Lake Magadi. This halophilic archaeon is partial to environments with 8–30% NaCl with optimum growth at 22%. It also grows in a pH range of 8.5–11 (optimum at 9.5) and a temperature range of 20–50 °C (optimum at 40 °C).
Phylogeny
[edit]The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[3] and National Center for Biotechnology Information (NCBI).[1]
| 16S rRNA based LTP_07_2026[4][5][6] | 53 marker proteins based GTDB 11-RS232[7][8][9] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Unassigned species:
- "N. aibiensis" Xu & Wu 2003
- "N. xinjiangense" Liu & Dilbar 2000
- "N. yunnanense" Tian & Li 2006
- "N. zabuyensis" Liu et al. 2003b
See also
[edit]References
[edit]- 1 2 C.L. Schoch. "Natronococcus". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2026-08-01.
- ↑ Tindall BJ; Ross HNM; Grant WD (1984). "Natronobacterium gen. nov. and Natronococcus gen. nov., two new genera of haloalkaliphilic archaebacteria". Syst. Appl. Microbiol. 5: 41–57. Bibcode:1984SyApM...5...41T. doi:10.1016/S0723-2020(84)80050-8.
- ↑ Natronococcus in LPSN; Freese, H. M.; Meier-Kolthoff, J. P.; Sardà Carbasse, J.; Afolayan, A. O.; Göker, M. (2026). "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. 54 (D1): D884–D891. doi:10.1093/nar/gkaf1110.
- ↑ "The LTPlus". The All-Species Living Tree Project. Retrieved 1 August 2026.
- ↑ "LTP_all tree in newick format". The All-Species Living Tree Project. Retrieved 1 August 2026.
- ↑ Rossello-Mora, Ramon; Viver, Tomeu; Palmer-Rodríguez, Pere; Westram, Ralf; Bustos-Caparros, Esteban; Gago, Joan Francisco; Gonzalez-Mendez, Jaime; Llabrés, Mercè; Ludwig, Wolfgang; Amann, Rudolf (22 April 2026). "A pipeline for improved 16S rRNA gene-based phylogeny and diversity analyses of Bacteria and Archaea". Nature Portfolio. doi:10.21203/rs.3.rs-9370187/v1.
- ↑ "GTDB release 11-RS232". Genome Taxonomy Database. Retrieved 1 May 2026.
- ↑ "ar53_r232.sp_label". Genome Taxonomy Database. Retrieved 1 May 2026.
- ↑ "Taxon History". Genome Taxonomy Database. Retrieved 1 May 2026.
Further reading
[edit]- Oren A; Ventosa A (2000). "International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Halobacteriaceae. Minutes of the meetings, 16 August 1999, Sydney, Australia". Int. J. Syst. Evol. Microbiol. 50 (3): 1405–1407. doi:10.1099/00207713-50-3-1405. PMID 10843089.