Natronococcus

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Natronococcus
Scientific classification
Domain:
Archaea
Kingdom:
Euryarchaeota
Phylum:
Euryarchaeota
Class:
Halobacteria
Order:
Natrialbales
Family:
Natrialbaceae
Genus:
Natronococcus

Tindall et al. 1984[ citation needed ]
Type species
Natronococcus occultus
Tindall et al. 1984
Species

In taxonomy, Natronococcus is a genus of the Natrialbaceae. [1]

Contents

Description and significance

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

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

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

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

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_06_2022 [4] [5] [6] 53 marker proteins based GTDB 08-RS214 [7] [8] [9]
Natronococcus

N. amylolyticus

N. jeotgali

N. occultus

Natronococcus

N. pandeyae Kajale et al. 2022

N. amylolyticus Kanai et al. 1995

N. jeotgali Roh et al. 2007

N. occultus Tindall et al. 1984

See also

Related Research Articles

Haladaptatus is a genus of halophilic archaea in the family of Halobacteriaceae. The members of Haladaptatus thrive in environments with salt concentrations approaching saturation

Halalkalicoccus is a genus of the Halobacteriaceae.

<i>Haloarcula</i> Genus of archaea

Haloarcula is a genus of extreme halophilic Archaea in the class of Halobactaria.

Halobaculum is a genus of the Halorubraceae.

Halobiforma is a genus of halophilic archaea of the family Natrialbaceae.

Halococcus is a genus of the Halococcaceae.

<i>Haloferax</i> Genus of archaea

In taxonomy, Haloferax is a genus of the Haloferacaceae.

In taxonomy, Halogeometricum is a genus of the Haloferacaceae.

Halomicrobium is a genus of the Haloarculaceae.

Halopiger is a genus of archaeans in the family Natrialbaceae that have high tolerance to salinity.

In taxonomy, Haloplanus is a genus of the Halobacteriaceae.

Halorhabdus is a genus of halophilic archaea in the Haloarculaceae. With an extremely high salinity optimum of 27% NaCl, Halorhabdus has one of the highest reported salinity optima of any living organism.

In taxonomy, Halosimplex is a genus of the Halobacteriaceae.

Haloterrigena is a genus of the Natrialbaceae.

In taxonomy, Halovivax is a genus of the Natrialbaceae. Some species of Halovivax are halophiles and have been found in Iran's Aran-Bidgol hypersaline lake.

In taxonomy, Natrialba is a genus of the Natrialbaceae. The genus consists of many diverse species that can survive extreme environmental niches, especially they are capable to live in the waters saturated or nearly saturated with salt (halophiles). They have certain adaptations to live within their salty environments. For example, their cellular machinery is adapted to high salt concentrations by having charged amino acids on their surfaces, allowing the cell to keep its water molecules around these components. The osmotic pressure and these amino acids help to control the amount of salt within the cell.

Natrinema is a genus of the Natrialbaceae.

In taxonomy, Natronobacterium is a genus of the Natrialbaceae. A member of the domain Archaea, it is both an extreme halophile and alkaliphile, thriving at an optimum saline concentration of 20% and optimum pH of 10.

Natronomonas is a genus of the Halobacteriaceae.

Natronorubrum is a genus in the family Halobacteriaceae.

References

  1. 1 2 Sayers; et al. "Natronococcus". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2023-10-10.
  2. ↑ 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. doi:10.1016/S0723-2020(84)80050-8.
  3. ↑ J.P. Euzéby. "Natronococcus". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2023-10-10.
  4. ↑ "The LTP" . Retrieved 10 May 2023.
  5. ↑ "LTP_all tree in newick format" . Retrieved 10 May 2023.
  6. ↑ "LTP_06_2022 Release Notes" (PDF). Retrieved 10 May 2023.
  7. ↑ "GTDB release 08-RS214". Genome Taxonomy Database . Retrieved 10 May 2023.
  8. ↑ "ar53_r214.sp_label". Genome Taxonomy Database . Retrieved 10 May 2023.
  9. ↑ "Taxon History". Genome Taxonomy Database . Retrieved 10 May 2023.

Further reading

Scientific journals

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