temperature delta

Edge evidence

• thermal-adaptation flexibility enables temperature tolerance breadth RO:0002327

  Thermal-adaptation flexibility enables broad temperature tolerance.

  • DOI:10.1146/annurev-micro-091313-103612 more unsaturated fatty acids Supports membrane-remodeling flexibility as the basis of broad thermal tolerance.
• temperature tolerance breadth manifests as temperature delta METPO:2007400

  The breadth between minimum and maximum growth-supporting ambient temperatures manifests the temperature-delta phenotype.

  • DOI:10.1016/s0300-9629(97)00003-0 adapted to environments of high temperature Supports the trait endpoint via thermal adaptation across a span.
• unsaturated fatty acids increases membrane fluidity RO:0002213

  cis-Unsaturated fatty acids disrupt lipid packing, lower the membrane transition temperature, and increase fluidity.

  • DOI:10.1146/annurev-micro-091313-103612 cis-unsaturated fatty acids disrupt packing, lower Tm, and increase fluidity; foundational and broadly applicable.
• unsaturated fatty acids supports membrane function and growth at low temperature

  Incorporation of more unsaturated fatty acids optimizes membrane function for growth at lower temperatures, extending the low-temperature end of the range.

  • DOI:10.1146/annurev-micro-091313-103612 bacteria respond to decreasing growth temperature by incorporating proportionally more unsaturated fatty acids, optimizing cellular processes at the new temperature.
• anteiso-branched-chain fatty acids increases membrane fluidity RO:0002213

  Anteiso-branched-chain fatty acids disrupt lipid packing and lower the membrane transition temperature, increasing fluidity.

  • DOI:10.1146/annurev-micro-091313-103612 anteiso-branched-chain fatty acids (a-BCFAs) disrupt packing, lower Tm; generalized across bacteria using branched lipids.
• anteiso-branched-chain fatty acids required for membrane function and growth at low temperature

  Membrane function and growth at low temperature require both anteiso-branched-chain fatty acids and unsaturated fatty acids.

  • DOI:10.1146/annurev-micro-091313-103612 Membrane function/growth at low temperature requires both anteiso-branched-chain fatty acids (a-BCFAs) and unsaturated fatty acids (UFAs).
• membrane function and growth at low temperature contributes to temperature tolerance breadth RO:0002326

  Supporting growth at the low-temperature end widens the span between minimum and maximum growth-supporting temperatures.

  • DOI:10.1146/annurev-micro-091313-103612 Membrane homeoviscous adaptation extends low-temperature growth, broadening the temperature tolerance span (delta).