RT Journal Article SR Electronic(1) A1 Kämpfer, Peter A1 Rekha, P. D. A1 Busse, Hans-Jürgen A1 Arun, A. B. A1 Priyanka, P. A1 Glaeser, Stefanie P.YR 2018 T1 Halomonas malpeensis sp. nov., isolated from rhizosphere sand of a coastal sand dune plant JF International Journal of Systematic and Evolutionary Microbiology, VO 68 IS 4 SP 1037 OP 1046 DO https://doi.org/10.1099/ijsem.0.002616 PB Microbiology Society, SN 1466-5034, AB 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 (97.5 %). The 16S rRNA gene sequence similarity to other Halomonas species was <97.5 %. 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 5 % (w/v) NaCl (growth up to 20 % NaCl). The fatty acid profile from whole-cell hydrolysates supported the allocation of the strain to the genus Halomonas . The fatty acids C18 : 1ω7c and C16 : 0 were found as major compounds, followed by the hydroxylated fatty acid C12 : 0 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., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002616