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Article

Characterization of Salinivibrio socompensis sp. nov., A New Halophilic Bacterium Isolated from the High-Altitude Hypersaline Lake Socompa, Argentina

1
Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain
2
Laboratorio de Investigaciones Microbiológicas de Lagunas Andinas, Planta Piloto de Procesos Industriales Microbiológicos, Centro Científico Tecnológico, CONICET Tucumán T4000, Argentina
*
Authors to whom correspondence should be addressed.
Microorganisms 2019, 7(8), 241; https://doi.org/10.3390/microorganisms7080241
Received: 30 June 2019 / Revised: 1 August 2019 / Accepted: 2 August 2019 / Published: 5 August 2019
(This article belongs to the Special Issue Microbial Diversity in Extreme Environments)
The genus Salinivibrio belongs to the family Vibrionaceae and includes Gram-stain-negative, motile by a polar flagellum, and facultatively anaerobic curved rods. They are halophilic bacteria commonly found in hypersaline aquatic habitats and salted foods. This genus includes five species and two subspecies. A presumed novel species, strain S35T, was previously isolated from the high-altitude volcanic, alkaline, and saline lake Socompa (Argentinean Andes). In this study we carried out a complete taxonomic characterization of strain S35T, including the 16S rRNA gene sequence and core-genome analysis, the average nucleotide identity (ANIb, ANIm, and orthoANI), and in silico DNA–DNA hybridization (GGDC), as well as the phenotypic and chemotaxonomic characterization. It grew at 3%–20% (w/v) NaCl, pH 6–10, and 10–42 °C, with optimum growth at 7.0%–7.5% (w/v) NaCl, pH 8.0, and 37 °C, respectively. Strain S35T was oxidase- and catalase-positive, able to produce acid from D-glucose and other carbohydrates. Hydrolysis of DNA, methyl red test, and nitrate and nitrite reduction were positive. Its main fatty acids were C16:0, C16:1 ω7c and C16:1 ω6c, and C18:1 ω7c and/or C18:1 ω6c. ANI, GGDC, and core-genome analysis determined that strain S35T constitutes a novel species of the genus Salinivibrio, for which the name Salinivibrio socompensis sp. nov. is proposed. The type strain is S35T (= CECT 9634T = BNM 0535T). View Full-Text
Keywords: Salinivibrio; Salinivibrio socompensis; bacterial taxonomy; halophilic bacteria; new species; hypersaline lake Salinivibrio; Salinivibrio socompensis; bacterial taxonomy; halophilic bacteria; new species; hypersaline lake
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MDPI and ACS Style

Galisteo, C.; Sánchez-Porro, C.; de la Haba, R.R.; López-Hermoso, C.; Fernández, A.B.; Farias, M.E.; Ventosa, A. Characterization of Salinivibrio socompensis sp. nov., A New Halophilic Bacterium Isolated from the High-Altitude Hypersaline Lake Socompa, Argentina. Microorganisms 2019, 7, 241. https://doi.org/10.3390/microorganisms7080241

AMA Style

Galisteo C, Sánchez-Porro C, de la Haba RR, López-Hermoso C, Fernández AB, Farias ME, Ventosa A. Characterization of Salinivibrio socompensis sp. nov., A New Halophilic Bacterium Isolated from the High-Altitude Hypersaline Lake Socompa, Argentina. Microorganisms. 2019; 7(8):241. https://doi.org/10.3390/microorganisms7080241

Chicago/Turabian Style

Galisteo, Cristina, Cristina Sánchez-Porro, Rafael R. de la Haba, Clara López-Hermoso, Ana B. Fernández, María E. Farias, and Antonio Ventosa. 2019. "Characterization of Salinivibrio socompensis sp. nov., A New Halophilic Bacterium Isolated from the High-Altitude Hypersaline Lake Socompa, Argentina" Microorganisms 7, no. 8: 241. https://doi.org/10.3390/microorganisms7080241

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