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The Use of Chemostats in Microbial Systems Biology
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Complex microbial systems across different levels of description.

Benedikt von Bronk1, Alexandra Götz, Madeleine Opitz

  • 1Faculty of Physics and Center for NanoScience, Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, D-80539 Munich, Germany.

Physical Biology
|May 15, 2018
PubMed
Summary

Understanding microbial communities requires multi-scale analysis. Examining genetic networks, cells, populations, and emergent properties reveals complex cross-scale interactions crucial for biological systems.

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Area of Science:

  • Microbiology
  • Systems Biology
  • Theoretical Biology

Background:

  • Complex biological systems exhibit phenomena across multiple physical scales.
  • Microbial communities present unique challenges due to emergent properties and cross-scale interactions.
  • Simple abstractions of microscopic details to macroscopic properties are often insufficient.

Purpose of the Study:

  • To review the multi-scale hierarchy for understanding microbial communities.
  • To illustrate the impact of cross-scale interactions using examples of microbial competition and biofilm formation.
  • To emphasize the necessity of multi-scale investigations in complex biological systems.

Main Methods:

  • Summarizing a hierarchy of scales: genetic networks, single cells, populations, and emergent multi-cellular properties.
  • Employing microbial competition and biofilm formation as case studies.
  • Reviewing recent investigations on multi-scale biological systems.

Main Results:

  • Cross-scale interactions and emergent properties significantly influence multi-cellular behavior.
  • A hierarchical framework (genetic networks to multi-cellular properties) is essential for comprehensive understanding.
  • Microbial competition and biofilm formation exemplify the importance of multi-scale dynamics.

Conclusions:

  • Multi-scale investigations are indispensable for comprehending complex biological systems like microbial communities.
  • Understanding emergent properties and cross-scale interactions is key to advancing microbial ecology.
  • Future research should continue to integrate different scales for a holistic view.