Halomonas malpeensis sp. nov., isolated from rhizosphere sand of a coastal sand dune plant.
Int J Syst Evol Microbiol
; 68(4): 1037-1046, 2018 Apr.
Article
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| MEDLINE
| ID: mdl-29458496
ABSTRACT
A Gram-stain-negative, aerobic, non-endospore-forming organism, isolated from the rhizosphere sand of a coastal sand dune plant was studied for its taxonomic position. On the basis of 16S rRNA gene sequence similarity comparisons, strain YU-PRIM-29T was grouped within the genus Halomonas and was most closely related to Halomonas johnsoniae (97.5â%). The 16S rRNA gene sequence similarity to other Halomonas species was <97.5â%. Strain YU-PRIM-29T grew optimally at 28 °C (growth range, 10-36 °C), at a pH of 7-9 (growth range, pH 5.5-12.0) and in the presence of 0.5 to 5â% (w/v) NaCl (growth up to 20â% NaCl). The fatty acid profile from whole-cell hydrolysates supported the allocation of the strain to the genus Halomonas. The fatty acids C18ââ1ω7c and C16ââ0 were found as major compounds, followed by the hydroxylated fatty acid C12ââ0 3-OH. The quinone system consisted predominantly of ubiquinone Q-9. The polar lipid profile was composed of the major lipids diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. In the polyamine pattern, spermidine was the predominant compound. The DNA G+C content was 64.8 mol%. In addition, the results of physiological and biochemical tests also allowed phenotypic differentiation of strain YU-PRIM-29T from its closest-related species. Hence, YU-PRIM-29T represents a new species of the genus Halomonas, for which we propose the name Halomonas malpeensis sp. nov., with YU-PRIM-29T (=LMG 28855T=CCM 8737T) as the type strain.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Filogenia
/
Halomonas
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Rizosfera
País/Región como asunto:
Asia
Idioma:
En
Revista:
Int J Syst Evol Microbiol
Asunto de la revista:
MICROBIOLOGIA
Año:
2018
Tipo del documento:
Article
País de afiliación:
Alemania