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Host-microbe interactions and the behavior of Caenorhabditis elegans
Name
01677063.2020.pdf
Description
Published version
Size
1.51 MB
Format
Adobe PDF
Checksum (MD5)
5b94e1edd9a19a1e18fd7e1e256ac28a
Author(s)
Kim, Dennis H
Flavell, Steven W
Date Issued
2020
Journal
Journal of Neurogenetics
Publisher
Informa UK Limited
Citation
Kim, Dennis H and Flavell, Steven W. 2020. "Host-microbe interactions and the behavior of Caenorhabditis elegans." Journal of Neurogenetics, 34 (3-4).
Version
Final published version
Abstract
© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Microbes are ubiquitous in the natural environment of Caenorhabditis elegans. Bacteria serve as a food source for C. elegans but may also cause infection in the nematode host. The sensory nervous system of C. elegans detects diverse microbial molecules, ranging from metabolites produced by broad classes of bacteria to molecules synthesized by specific strains of bacteria. Innate recognition through chemosensation of bacterial metabolites or mechanosensation of bacteria can induce immediate behavioral responses. The ingestion of nutritive or pathogenic bacteria can modulate internal states that underlie long-lasting behavioral changes. Ingestion of nutritive bacteria leads to learned attraction and exploitation of the bacterial food source. Infection, which is accompanied by activation of innate immunity, stress responses, and host damage, leads to the development of aversive behavior. The integration of a multitude of microbial sensory cues in the environment is shaped by experience and context. Genetic, chemical, and neuronal studies of C. elegans behavior in the presence of bacteria have defined neural circuits and neuromodulatory systems that shape innate and learned behavioral responses to microbial cues. These studies have revealed the profound influence that host-microbe interactions have in governing the behavior of this simple animal host.
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
10.1080/01677063.2020.1802724
