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Engineering chemical interactions in microbial communities.

Douglas J Kenny1, Emily P Balskus

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Engineering microbes to communicate chemically offers a powerful way to manage host-associated microbial communities. This approach can improve nutrient exchange, enhance host health, and combat pathogens in plant and animal microbiotas.

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Area of Science:

  • Microbiology
  • Synthetic Biology
  • Chemical Ecology

Background:

  • Host-associated microbial communities (microbiotas) are crucial for host health and function.
  • Microbial interactions within these communities rely heavily on chemical signaling.
  • Disruptions in chemical communication can negatively impact both hosts and their resident microbes.

Purpose of the Study:

  • To review chemical interactions in host-associated microbial communities, focusing on plant-root and animal intestinal microbiotas.
  • To highlight how understanding these interactions informs microbial engineering strategies.
  • To discuss engineering efforts for modulating chemical signaling to benefit host colonization, health, and pathogen exclusion.

Main Methods:

  • Review of existing literature on microbial chemical communication in plant and animal systems.
  • Analysis of case studies in microbial engineering for targeted signaling.
  • Identification of challenges and future research directions in the field.

Main Results:

  • Chemical signaling is fundamental to nutrient cycling, pathogen defense, and host-microbe symbiosis.
  • Engineered microbes can be designed to participate in specific chemical dialogues within microbiotas.
  • Successful engineering strategies have been demonstrated for host colonization, health promotion, and pathogen exclusion.

Conclusions:

  • Microbial engineering holds significant promise for manipulating complex host-associated microbial communities.
  • Further research is needed to overcome current challenges and unlock the full potential of engineered chemical signaling.
  • This field offers innovative solutions for improving host health and ecosystem function.