RT Journal Article T1 Halomonas fontilapidosi sp. nov., a moderately halophilic, denitrifying bacterium A1 González-Doménech, Carmen María A1 Martínez-Checa, Fernando A1 Quesada, Emilia A1 Béjar, Victoria K1 Microorganismos halófilos K1 Bacterias desnitrificantes AB We have made a polyphasic taxonomic study of strain 5CR(T), isolated from Fuente de Piedra, Málaga, southern Spain. The strain is a moderately halophilic, Gram-negative rod, oxidase-positive and motile by a single polar flagellum. It does not produce acids from sugars and shows respiratory metabolism, using oxygen, nitrate and nitrite as terminal electron acceptors. It requires NaCl and grows best with 5-7.5 % w/v at temperatures of between 32 and 45 degrees C within a pH range of 6-8. Its 16S rRNA gene sequence indicates that strain 5CR(T) belongs to the genus Halomonas in the class Gammaproteobacteria. Its closest relatives are Halomonas alimentaria, H. nitroreducens, H. shengliensis and H. ventosae, with the type strains of which our strain showed 16S rRNA gene sequence similarity values of 96.7-97.8 %. DNA-DNA hybridization studies between strain 5CR(T) and H. ventosae CECT 5797(T), the phylogenetically nearest type strain, showed 40 % relatedness. Its G+C content is 65.7 mol%. Its major fatty acids are C(18 : 1)omega7c (31.36 %), C(16 : 0) (25.55 %), C(16 : 1)omega7c/iso-C(15 : 0) 2-OH (23.23 %), C(19 : 0) cyclo omega8c (8.14 %), C(12 : 0) 3-OH (5.76 %) and C(10 : 0) (2.22 %) and the predominant respiratory lipoquinone is ubiquinone with nine isoprene units (Q-9). The proposed name for the novel species is Halomonas fontilapidosi sp. nov., strain 5CR(T) (=CECT 7341(T) =LMG 24455(T)) being the type strain. PB Microbiology Society YR 2009 FD 2009-06-01 LK https://hdl.handle.net/10630/28936 UL https://hdl.handle.net/10630/28936 LA eng NO González-Domenech CM, Martínez-Checa F, Quesada E, Béjar V. Halomonas fontilapidosi sp. nov., a moderately halophilic, denitrifying bacterium. Int J Syst Evol Microbiol. 2009 Jun;59(Pt 6):1290-6. doi: 10.1099/ijs.0.004275-0. PMID: 19502304. NO Dirección General de Investigación Científica y Técnica (BOS2003-0498;CGL2005-05947) and from Plan Andaluz de Investigación, Spain. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026