temperature range

Edge evidence

• ambient temperature defines bounded temperature growth window METPO:2007500

  Ambient temperature defines the axis over which the growth window is bounded.

  • DOI:10.1016/s0300-9629(97)00003-0 adapted to environments of high temperature Supports ambient temperature as the axis bounding the growth window.
• cold tolerance defines bounded temperature growth window METPO:2007500

  Cold tolerance sets the lower bound of the temperature growth window.

  • DOI:10.1038/sj.embor.7400662 decreased membrane fluidity Supports cold-end membrane and enzyme adaptation as the lower-bound mechanism.
• heat tolerance defines bounded temperature growth window METPO:2007500

  Heat tolerance sets the upper bound of the temperature growth window.

  • DOI:10.1128/MMBR.65.1.1-43.2001 resistant to irreversible inactivation at high temperatures Supports protein-thermostability physiology as the upper-bound mechanism.
• bounded temperature growth window manifests as temperature range METPO:2007400

  The bounded temperature growth window manifests the temperature-range phenotype.

  • DOI:10.1016/s0300-9629(97)00003-0 adapted to environments of high temperature Supports the trait endpoint.
• ambient temperature increases membrane lipid unsaturation RO:0002213

  Decreased ambient temperature increases membrane lipid unsaturation via homeoviscous adaptation.

  • DOI:10.1007/s12275-023-00031-x E. coli increases unsaturated cis-vaccenic acid and decreases palmitic acid with cold; broad bacterial mechanism affecting the lower growth bound.
• lipid desaturase activity increases membrane fluidity RO:0002213

  Lipid desaturase activity increases membrane fluidity at low temperature.

  • DOI:10.37256/amtt.5220244537 Upregulation of genes for fatty acid synthesis/desaturation maintains membrane fluidity at low temperature.
• membrane lipid unsaturation increases membrane fluidity RO:0002213

  Increased membrane lipid unsaturation maintains membrane fluidity at low temperature.

  • DOI:10.37256/amtt.5220244537 Fatty acid desaturation maintains membrane fluidity, a broadly supported homeoviscous adaptation underpinning cold tolerance.
• membrane fluidity enables cold tolerance RO:0002327

  Maintenance of membrane fluidity enables cold tolerance at the lower temperature bound.

  • DOI:10.37256/amtt.5220244537 Maintaining membrane fluidity at low temperature is a core mechanism supporting growth at the cold end of the range.
• ambient temperature induces molecular chaperone systems

  Elevated ambient temperature induces molecular chaperone systems that support heat tolerance.

  • DOI:10.1007/s12275-023-00031-x Molecular chaperones DnaK/Hsp70 and GroEL are implicated in survival at high temperatures; broad across bacteria.
• molecular chaperone systems enables heat tolerance RO:0002327

  Molecular chaperone systems enable heat tolerance at the upper temperature bound.

  • DOI:10.1007/s12275-023-00031-x Chaperone-mediated protein folding supports the upper-bound (Tmax) heat-tolerance mechanism.
• compatible solutes protects against cold tolerance

  Compatible solutes protect against low-temperature and freezing stress, supporting cold tolerance.

  • DOI:10.37256/amtt.5220244537 Glycine, betaine, glycerol, and trehalose act as cryoprotectants and osmolytes; broad low-end mechanism.
• membrane fluidity activates two-component cold sensing RO:0002213

  Changes in the liquid-crystalline membrane state activate two-component cold sensing.

  • DOI:10.1007/s42770-023-01057-4 Cold sensing via changes in the liquid-crystalline membrane state that activate two-component signal transduction; generic edge linking membrane state to regulatory response.