The extremely halophilic bacterium Salicola marasensis IC10 accumulates the compatible solute betaine |
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| Authors: | Marí a de Lourdes Moreno,Marí a Teresa Garcí a,Antonio Ventosa,Fernando Iglesias-Guerra,Encarnació n Mellado |
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| Affiliation: | 1. Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Sevilla, Sevilla, Spain;2. Department of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Sevilla, Sevilla, Spain |
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| Abstract: | The extremely halophilic bacterium strain IC10 was isolated from a solar saltern on Isla Cristina (southern Spain). Phylogenetic, genotypic and phenotypic data supported the inclusion of this strain in the species Salicola marasensis. An analysis of intracellular organic osmotic solutes showed glycine betaine to be present, contributing to the overall osmotic balance, and this was the only compatible solute accumulated when S. marasensis IC10 was grown over a wide range of external NaCl concentrations (10–25%, w/v). |
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| Keywords: | Extremely halophilic bacteria Salicola Compatible solutes Betaine Osmoadaptation Magnesium tolerance |
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