temperature optimum mid2

Edge evidence

• mesophilic environment engages baseline mesophile adaptation

  Mesophilic environments engage baseline mesophile adaptation.

  • DOI:10.1146/annurev-micro-091313-103612 more unsaturated fatty acids Supports mesophile homoviscous adaptation at moderate ambient temperature.
• baseline mesophile adaptation produces temperature optimum mid2 METPO:2000202

  Baseline mesophile adaptation yields a 27–30 °C optimum.

  • DOI:10.1146/annurev-micro-091313-103612 more unsaturated fatty acids Supports the 27–30 °C optimum as the baseline-mesophile outcome.
• temperature optimum mid2 is a temperature optimum rdfs:subClassOf

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

  • DOI:10.1016/s0300-9629(97)00003-0 adapted to environments of high temperature Supports the 27–30 °C optimum as a value within the temperature-optimum distribution.
• temperature decrease causes membrane rigidification biolink:causes

  A temperature drop rigidifies and thickens the cytoplasmic membrane.

  • DOI:10.1128/spectrum.03925-23 Temperature drops cause membrane rigidification and thickening and can induce a liquid-crystalline to gel phase change; general bacterial mechanism.
• unsaturated fatty acids increases membrane fluidity RO:0002213

  Higher unsaturated fatty acid content fluidizes and thins the bilayer.

  • DOI:10.1007/s42770-023-01057-4 Increasing the saturated/unsaturated ratio toward UFAs increases fluidity; UFAs are central membrane fluidizers.
• baseline mesophile adaptation increases unsaturated fatty acids RO:0002213

  Homeoviscous mesophile adaptation raises unsaturated fatty acid content to offset cooling.

  • DOI:10.1007/s42770-023-01057-4 Homeoviscous adaptation adjusts the saturated/unsaturated fatty-acid ratio to maintain membrane fluidity at the growth temperature.
• membrane fluidity enables baseline mesophile adaptation RO:0002327

  Maintained membrane fluidity supports the baseline mesophile physiological state.

  • DOI:10.1128/spectrum.03925-23 Cells sense and correct membrane fluidity via desaturation to keep the bilayer functional at the ambient temperature.
• temperature optimum mid2 subclass of mesophile category

  The 27-30 C optimum falls within the mesophile growth range.

  • DOI:10.1007/s42770-023-01057-4 Mesophiles grow between about 20 C and 45 C; 27-30 C lies inside this range, making mid2 a mesophile subset.