Deleya halophila

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.

Deleya halophila
Scientific classification
Domain:
Bacteria
Phylum:
Pseudomonadota
Class:
Gammaproteobacteria
Order:
Oceanospirillales
Family:
Halomonadaceae
Genus:
Deleya
Species:
D. halophila

Quesada et al., 1984

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. Karamanou S, Katinakis P (1988). "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. doi:10.1016/0769-2609(88)90150-0. PMID 3252902.
  4. Rivadeneyra MA, Ramos-Cormenzana A, Delgado G, Delgado R (June 1996). "Process of Carbonate Precipitation by Deleya halophila". Current Microbiology. 32 (6): 308–13. doi:10.1007/s002849900055. PMID 8661675. S2CID 9927478. Archived from the original on 2001-09-11. 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. S2CID 35213931.
  • Physiological features at different salt concentrations: Ferrer MR, del Moral A, Quesada E, Ramos-Cormenzana A (1987). "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. doi:10.1016/0769-2609(87)90053-6. PMID 3606873.


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