NaCl optimum mid2

Edge evidence

• elevated NaCl regulates pronounced compatible-solute accumulation RO:0002211

  Elevated NaCl drives substantial compatible-solute accumulation.

  • DOI:10.1093/femsre/fuy009 synthesize organic osmotic solutes Supports compatible-solute accumulation as the osmoadaptive response at elevated NaCl.
• pronounced compatible-solute accumulation produces NaCl optimum mid2 METPO:2000202

  Pronounced compatible-solute accumulation yields a 3–8% NaCl-optimum setpoint.

  • DOI:10.1093/femsre/fuy009 moderate halophile Supports the 3–8% optimum as the moderate-halophile outcome.
• NaCl optimum mid2 is a NaCl optimum rdfs:subClassOf

  NaCl optimum mid2 is a quantitative bin of the NaCl-optimum phenotype.

  • DOI:10.1093/femsre/fuy009 optimal NaCl Supports the 3–8% optimum as a value within the NaCl-optimum distribution.
• elevated NaCl induces ectoine biosynthesis module (ectABC)

  Elevated salinity (>3% NaCl) triggers the canonical ectoine biosynthesis pathway.

  • DOI:10.1128/aem.01905-23 Exposure to salt concentrations higher than 3% NaCl triggers biosynthesis and intracellular accumulation of ectoine as a major compatible solute (Zou et al. 2024).
• elevated NaCl upregulates ectoine biosynthesis module (ectABC)

  Salt stress at ~6% w/v NaCl (within the 3-8% window) upregulates the ectoine biosynthesis module.

  • DOI:10.1186/s12934-024-02515-w Transcriptomics showed the ectoine biosynthesis module is upregulated under salt stress, with 60 g/L NaCl (~6% w/v, inside 3-8% window) optimal for growth (Chen et al. 2024).
• ectoine biosynthesis module (ectABC) produces ectoine METPO:2000202

  The ectABC pathway synthesizes the compatible solute ectoine.

  • DOI:10.1128/aem.01905-23 Biosynthesis and intracellular accumulation of ectoine as a major compatible solute via the ectoine pathway (Zou et al. 2024).
• pronounced compatible-solute accumulation is a compatible-solute strategy rdfs:subClassOf

  Pronounced organic-osmolyte accumulation is an instance of the compatible-solute osmoadaptation strategy.

  • DOI:10.3390/biotech14020049 The compatible-solute strategy accumulates small organic osmolytes including glycine, betaine, and ectoine (Neagu & Stancu 2025).
• compatible-solute strategy uses ectoine

  Compatible-solute osmoadaptation employs ectoine as an organic osmolyte.

  • DOI:10.1186/s12934-025-02757-2 Many species naturally produce the osmolyte ectoine (plus hydroxyectoine, betaine, glycine, proline) (Coimbra et al. 2025).
• compatible-solute strategy uses glycine betaine

  Compatible-solute osmoadaptation employs glycine betaine as an organic osmolyte.

  • DOI:10.3390/biotech14020049 Identified compatible solutes include glycine, betaine, and ectoine (Neagu & Stancu 2025).
• compatible-solute strategy uses L-proline

  Compatible-solute osmoadaptation employs L-proline as an organic osmolyte.

  • DOI:10.1186/s12934-025-02757-2 Many species naturally produce the osmolyte ectoine plus hydroxyectoine, betaine, glycine, proline (Coimbra et al. 2025).