ArticleExtremophiles : life under extreme conditions2013
Glycine betaine is the main organic osmotic solute in a stratified microbial community in a hypersaline evaporitic gypsum crust.
Article in Extremophiles : life under extreme conditions, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 25 citations in OpenAlex.
- Beyond probiotics and pathobionts: mechanistic roles of enterococcus-derived bioactive components in health and disease.Folia microbiologica · 2026Review
- Microbial diversity, metabolic specialization, and genomic novelty across polyextreme saline lakes of the Central Dry Andes.Environmental microbiome · 2026Article
- Effect of membrane vesicles produced under different pH conditions on the ability ofJournal of bacteriology · 2025Article
- RNA-Seq Insight into the Impact and Mechanisms of Methyl Donor and Glycine Betaine Osmoprotectant on Polyketide Secondary Metabolism inJournal of fungi (Basel, Switzerland) · 2025Article
- Microbial colonization of gypsum: from the fossil record to the present day.Frontiers in microbiology · 2024Review
- Glycine Betaine Effect on Dormancy in Deinococcus sp. UDEC-P1 and Psychrobacter sp. UDEC-A5 Exposed to Hyperosmotic Stress.Current microbiology · 2019Article
- Methanogenic and Sulfate-Reducing Activities in a Hypersaline Microbial Mat and Associated Microbial Diversity.Microbial ecology · 2018Article
- Detection of pigments of halophilic endoliths from gypsum: Raman portable instrument and European Space Agency's prototype analysis.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2014Article
- Trimethylamine and Organic Matter Additions Reverse Substrate Limitation Effects on the δ13C Values of Methane Produced in Hypersaline Microbial Mats.Applied and environmental microbiology · 2014Article
- Raman spectroscopy in halophile research.Frontiers in microbiology · 2013Review
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We have examined the organic osmotic solutes content within the stratified microbial communities in an evaporitic gypsum crust found in an evaporation pond (~194 g/l total dissolved salts) of the salterns of the Israel Salt Company, Eilat. We extracted intracellular solutes from the upper three pigmented layers of the crust: a yellow-orange layer dominated by unicellular cyanobacteria, a green layer with filamentous cyanobacteria, and a layer colored red-purple by purple sulfur bacteria; dense communities of heterotrophic bacteria were present in all layers. The solutes were analyzed by Raman spectroscopy, (1)H and (13)C nuclear magnetic resonance, and HPLC. All layers contained glycine betaine as the only detectable osmotic solute; ectoine and other solutes known to be produced by many halophilic and halotolerant prokaryotes were not found. In this first attempt to assess the osmotic solute content within complex natural communities of halophilic microorganisms, the predominant role of glycine betaine as an osmolyte was established. Most heterotrophic bacteria cannot produce glycine betaine but preferentially use it when it is supplied. Presence of glycine betaine produced by the photoautotrophic members of the community, therefore, may relieve the heterotrophs from the need to synthesize other compounds at a high-energy cost.
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