| Halomonas elongata | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Oceanospirillales |
| Family: | Halomonadaceae |
| Genus: | Halomonas |
| Species: | H. elongata
|
| Binomial name | |
| Halomonas elongata Vreeland et al. 1980
| |
Halomonas elongata is considered the type species of the genus Halomonas. It is a chemoorganotrophic, halophilic bacterium first isolated from a solar salt facility located in Bonaire, Netherlands Antilles.[1]
Halomonas elongata cells are gram-negative rods which are motile by either polar or peritrichous flagella.[1] On a solid medium, H. elongata produce glistening, opaque white colonies that are about 2 mm in diameter.[1]
Halomonas elongata are able to reduce NO3 to NO2 and are able to grow anaerobically in the presence of NO3.[1] Cells of H. elongata are capable of utilizing malonate, fermenting glucose, and oxidizing glycerol, sucrose, mannose and cellobiose. Most strains of H. elongata can also oxidize lactose and gluconate.[1] All strains are susceptible to HgCl2 and chloromycetin but have only a slight susceptibility to other antibiotics like penicillin, streptomycin, tetracycline, ampicillin, vibriostat O/129, novobiocin, neomycin, bacitracin and nalidixic acid.[1]
Halomonas elongata grows in a pH range of 5 to 9 and a temperature range of 4-45 °C.[1] The optimum temperature being 30 °C. These organisms are also able to grow over a wide range of salt concentrations. All nine isolates first found at the Bonaire, Netherlands Antilles solar salt facility were capable of surviving in salt concentrations from 3.5 to 20%.[1]
Halomonas elongata strains 1H9 and 1H11 have G+C contents of 60.5 %.[1] H. elongata has a total genome size of 4.06 Mb.[2]