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Related Experiment Video

Updated: Jul 12, 2025

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

Optimal phenotypic adaptation in fluctuating environments.

Jason T George¹

¹Department of Biomedical Engineering, Texas A&M University, College Station, Texas; Engineering Medicine Program, Texas A&M University, Houston, Texas; Center for Theoretical Biological Physics, Rice University, Houston, Texas.

Biophysical Journal

|October 25, 2023

Summary

This summary is machine-generated.

Cellular systems use memory to adapt to changing environments. This memory influences adaptation speed and accuracy, with observed growth changes being a result of optimal decision-making strategies.

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Area of Science:

Biology
Ecology
Mathematical Modeling

Background:

Phenotypic adaptation is crucial for organisms in variable environments.
Cellular memory plays a role in decision-making under nutrient uncertainty.
Fluctuating conditions can lead to distinct growth phenotypes.

Purpose of the Study:

To model memory-driven cellular adaptation in dynamic environments.
To understand how memory influences the trade-off between adaptation speed and accuracy.
To explain growth reductions observed in fluctuating conditions.

Main Methods:

Development of a simple stochastic mathematical model.
Analysis of adaptive population dynamics in uncertain environments.
Inference of future environmental variations from past states.

Main Results:

Memory capacity dictates a trade-off between adaptation speed and accuracy.
Observed growth reductions are linked to optimal decision-making (bet hedging).
Phenotypic-environmental mismatch contributes to growth changes.

Conclusions:

Mathematical modeling provides insights into memory-driven phenotypic adaptation.
The framework can inform strategies for therapies targeting adaptive systems.
Optimal decision-making in fluctuating environments involves trade-offs and potential mismatches.