temperature delta mid2

Edge evidence

• broad thermal-adaptation flexibility produces temperature delta mid2 METPO:2000202

  Broad thermal-adaptation flexibility yields a 20–30 °C temperature-delta breadth.

  • DOI:10.1146/annurev-micro-091313-103612 more unsaturated fatty acids Supports broad remodeling flexibility as the basis of broad breadth.
• temperature delta mid2 is a temperature delta rdfs:subClassOf

  Temperature delta mid2 is a quantitative bin of the temperature-delta phenotype.

  • DOI:10.1016/s0300-9629(97)00003-0 adapted to environments of high temperature Supports the 20–30 °C breadth as a value within the temperature-delta distribution.
• acyl-lipid desaturase (Des) increases abundance of unsaturated fatty acids

  Desaturase remodels existing lipids, raising unsaturated:saturated fatty acid ratio.

  • DOI:10.1128/spectrum.03925-23 A rapid change in the saturated:unsaturated fatty acid ratio by desaturation of existing lipids.
• unsaturated fatty acids increases membrane fluidity / homeoviscous adaptation RO:0002213

  Unsaturation fluidizes the membrane, supporting homeoviscous adaptation.

  • DOI:10.1128/spectrum.03925-23 Desaturation fluidizes the membrane; strong general mechanism.
• membrane fluidity / homeoviscous adaptation enables broad thermal-adaptation flexibility RO:0002327

  Maintaining membrane fluidity across temperatures underpins broad thermal-adaptation flexibility.

  • DOI:10.1128/spectrum.03925-23 Homeoviscous adaptation via fluidity maintenance underlies adaptation across a temperature range.
• RpoS sigma factor (sigma-S) positively regulates expression of otsAB trehalose biosynthesis operon

  RpoS controls cold-shock-triggered induction of the otsAB operon.

  • DOI:10.1007/s12275-023-00031-x otsAB induction is RpoS-dependent and triggered by osmotic stress, cold shock, or stationary phase.
• otsAB trehalose biosynthesis operon produces trehalose METPO:2000202

  The otsAB pathway synthesizes trehalose.

  • DOI:10.1007/s12275-023-00031-x Trehalose is synthesized by the otsAB operon.
• trehalose contributes to cold / cold-shock tolerance RO:0002326

  Trehalose acts as a compatible solute supporting cold-shock tolerance.

  • DOI:10.1007/s12275-023-00031-x Trehalose helps cold shock tolerance.