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Microbial metabolic noise.

Andreas E Vasdekis1, Abhyudai Singh2

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Summary
This summary is machine-generated.

Cellular metabolism exhibits inherent variability, similar to other cell characteristics. This metabolic noise, driven by stochastic dynamics, presents adaptive benefits and may influence evolutionary processes in microbes.

Keywords:
cellular noiseevolutionmetabolic noisesystems biology

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Area of Science:

  • Cellular and Molecular Metabolism
  • Microbial Physiology
  • Evolutionary Biology

Background:

  • Identical appearance of clonal cells is challenging due to inherent cell-to-cell differences in shape, size, and protein content.
  • These phenotypic variations establish limits on achieving identical cellular states.
  • Similar fundamental limits are now recognized in cellular metabolism.

Purpose of the Study:

  • To present experimental and computational evidence for limits in cellular metabolism.
  • To explore cell-to-cell metabolic variability arising from stochastic metabolic dynamics.
  • To review the adaptive benefits of metabolic variability and its link to evolution.

Main Methods:

  • Review of recent experimental findings on metabolic variability.
  • Analysis of computational models simulating stochastic metabolic dynamics.
  • Focus on microbial metabolism as a model system.

Main Results:

  • Stochastic dynamics in cellular metabolism lead to inherent cell-to-cell metabolic variability.
  • This metabolic variability is not a flaw but can confer adaptive advantages.
  • Metabolic noise is a fundamental characteristic of cellular systems.

Conclusions:

  • Cellular metabolism is subject to inherent variability, mirroring other cellular traits.
  • Metabolic noise plays a role in adaptation and may be a driver of evolutionary processes.
  • Further research can explore the relationship between metabolic noise and adaptive evolution in microbial systems.