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Int J Syst Evol Microbiol 59 (2009), 578-582; DOI  10.1099/ijs.0.003509-0
© 2009 International Union of Microbiological Societies

Halomonas ilicicola sp. nov., a moderately halophilic bacterium isolated from a saltern

María Arenas1, Patricia I. Bañón1, José L. Copa-Patiño1, Cristina Sánchez-Porro2, Antonio Ventosa2 and Juan Soliveri1

1 Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
2 Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain

Correspondence
Juan Soliveri
juan.soliveri{at}uah.es

A Gram-negative, heterotrophic, aerobic, pale orange-pigmented, non-endospore-forming and motile bacterial strain, designated strain SP8T, was isolated from a salty water sample from the solar salterns of Santa Pola, located on the Mediterranean coast of Spain. The strain grew optimally at 37 °C, pH 6.5 and in the presence of 10 % NaCl. A polyphasic taxonomic study was conducted in order to characterize the strain in detail. Phylogenetic analyses based on 16S rRNA gene sequence comparisons indicated that strain SP8T clustered within the branch constituted by species of the genus Halomonas. The closest phylogenetic neighbours of strain SP8T were Halomonas muralis LMG 20969T (96.0 % sequence similarity), Halomonas pantelleriensis AAPT (95.9 %) and Halomonas campaniensis 5AGT (95.8 %). Phenotypic features, the fatty acid profile and the DNA G+C content of the novel strain further supported its placement in the genus Halomonas. On the basis of phenotypic, chemotaxonomic and phylogenetic distinctiveness, it is suggested that strain SP8T represents a novel species for which the name Halomonas ilicicola sp. nov. is proposed. The type strain is SP8T (=CECT 7331T=CCM 7522T=DSM 19980T).

Abbreviations: SEM, scanning electron microscopy

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain SP8T is EU218533.

Additional phylogenetic trees based on neighbour-joining and maximum-likelihood analysis of the 16S rRNA gene sequences of strain SP8T and closely related species are available with the online version of this paper.






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