AI Article Synopsis
- Strain LCHXa is a newly discovered bacterium from Laguna Chaxa, a high lithium-content water body in Chile, showing resilience to high lithium levels.
- It was cultivated in a lab with Luria-Bertani medium enhanced with lithium chloride, demonstrating the ability to grow in conditions up to 2 M LiCl, though growth slowed significantly.
- The bacterium's osmoregulation utilizes compatible solutes like glycine betaine and glycerol to manage osmotic stress in high-salinity environments.
Article Abstract
In addition to the industrial and biomedical applications of lithium, information on the tolerance of microorganisms to high Li concentrations in natural biological systems is limited. Strain LCHXa is a novel free-living Gram-positive, non-motile bacterium strain isolated from water samples taken at Laguna Chaxa, a non-industrial water body with the highest soluble Li content (33 mM LiCl) within the Salar de Atacama basin in northern Chile. Enrichment was conducted in Luria-Bertani (LB) medium supplemented with 1 M LiCl. Strain LCHXa was a Novobiocin-resistant and coagulase negative . Phylogenetically, strain LCHXa belongs to the species . Strain LCHXa grew optimally in LB medium at pH 6-8 and 37 °C, and it was able to sustain growth at molar Li concentrations at 2 M LiCl, with a decrease in the specific growth rate of 85%. Osmoregulation in strain LCHXa partially involves glycine betaine and glycerol as compatible solutes.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7285145 | PMC |
| http://dx.doi.org/10.3390/microorganisms8050668 | DOI Listing |
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