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A Gram-negative, halophilic, heterotrophic, rod-shaped, non-spore-forming bacterium (SV525T) was isolated from the sediment of a hypersaline lake located at 4600 m above sea level (Laguna Vilama, Argentina). Strain SV525T was strictly aerobic and formed pink-to-magenta colonies. Growth occurred at 10–35 °C (optimum 25–30 °C), at pH levels 6.0–8.5 (optimum 7.0) and at NaCl concentrations of 7.5–25 %...
We examined the presence of bacteriorhodopsin and other retinal protein pigments in the microbial community of the saltern crystallizer ponds in Eilat, Israel, and assessed the effect of the retinal-based proton pumps on the metabolic activity. The biota of the hypersaline (~309 g salts l−1) brine consisted of ~2200 β-carotene-rich Dunaliella cells and ~3.5 × 107 prokaryotes ml−1, most of which were...
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