Biology:Deleya halophila

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Short description: Species of bacterium

Deleya halophila
Scientific classification
Domain:
Phylum:
Class:
Order:
Family:
Genus:
Deleya
Species:
D. halophila

Quesada et al., 1984

Deleya halophila (also known as Halomonas halophila) is a salt-loving, gram-negative bacteria.[1] It is known to habitat marine environments, solar salterns, saline soils, and salted food. The genus was named after J. De Ley, a noted biologist. Its type strain is CCM 3662.

This particular species is anaerobic, rod-shaped and motile, thanks to possessing eight petritichous flagella. It grows optimally in 7.5% (wt/vol) sodium chloride solution. Albeit, salt shock is achieved with a concentration of 2-2.5M, affecting cell division and protein synthesis.[2] Its reaction to heat shock is also associated with the medium's salt concentration.[3]

This species is also a good exponent of biomineralisation, particularly precipitation of calcium carbonate.[4][5]

References

  1. Quesada, E.; Ventosa, A.; Ruiz-Berraquero, F.; Ramos-Cormenzana, A. (1984). "Deleya halophila, a New Species of Moderately Halophilic Bacteria". International Journal of Systematic Bacteriology 34 (3): 287–292. doi:10.1099/00207713-34-3-287. ISSN 0020-7713. 
  2. Economou, A.; Roussis, A.; Milioni, D.; Katinakis, P. (1989). "Patterns of protein synthesis in the moderately halophilic bacteriumDeleya halophilain response to sudden changes in external salinity". FEMS Microbiology Letters 62 (2): 103–110. doi:10.1111/j.1574-6968.1989.tb03662.x. ISSN 0378-1097. 
  3. "Heat shock proteins in the moderately halophilic bacterium Deleya halophila: protective effect of high salt concentration against thermal shock". Annales De l'Institut Pasteur. Microbiology 139 (5): 505–14. 1988. doi:10.1016/0769-2609(88)90150-0. PMID 3252902. 
  4. "Process of Carbonate Precipitation by Deleya halophila". Current Microbiology 32 (6): 308–13. June 1996. doi:10.1007/s002849900055. PMID 8661675. http://link.springer-ny.com/link/service/journals/00284/bibs/32n6p308.html. Retrieved 2013-06-12. 
  5. Ferrer, M.R.; Quevedo‐Sarmiento, J.; Bejar, V.; Delgado, R.; Ramos‐Cormenzana, A.; Rivadeneyra, M.A. (1988). "Calcium carbonate formation byDeleya halophila:Effect of salt concentration and incubation temperature". Geomicrobiology Journal 6 (1): 49–57. doi:10.1080/01490458809377821. ISSN 0149-0451. 

Further reading

  • Growth characteristics: Quesada, Emilia; Bejar, Victoria; Valderrama, María José; Ramos-Cormenzana, Alberto (1987). "Growth characteristics and salt requirement of Deleya halophila in a defined medium". Current Microbiology 16 (1): 21–25. doi:10.1007/BF01568164. ISSN 0343-8651. 
  • Physiological features at different salt concentrations: "Growth rate and some physiological features of Deleya halophila CCM 3662 at different salt concentrations". Annales De l'Institut Pasteur. Microbiology 138 (1): 49–57. 1987. doi:10.1016/0769-2609(87)90053-6. PMID 3606873. 

External links

Wikidata ☰ Q16955647 entry