The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis

Abstract As interest in space exploration rises, there is a growing need to quantify the impact of microgravity on the growth, survival, and adaptation of microorganisms, including those responsible for astronaut illness. Motility is a key microbial behavior that plays important roles in nutrient as...

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Main Authors: Jacqueline M. Acres, Myka Jaap Youngapelian, Jay Nadeau
Format: Article
Language:English
Published: Nature Portfolio 2021-02-01
Series:npj Microgravity
Online Access:https://doi.org/10.1038/s41526-021-00135-x
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author Jacqueline M. Acres
Myka Jaap Youngapelian
Jay Nadeau
author_facet Jacqueline M. Acres
Myka Jaap Youngapelian
Jay Nadeau
author_sort Jacqueline M. Acres
collection DOAJ
description Abstract As interest in space exploration rises, there is a growing need to quantify the impact of microgravity on the growth, survival, and adaptation of microorganisms, including those responsible for astronaut illness. Motility is a key microbial behavior that plays important roles in nutrient assimilation, tissue localization and invasion, pathogenicity, biofilm formation, and ultimately survival. Very few studies have specifically looked at the effects of microgravity on the phenotypes of microbial motility. However, genomic and transcriptomic studies give a broad general picture of overall gene expression that can be used to predict motility phenotypes based upon selected genes, such as those responsible for flagellar synthesis and function and/or taxis. In this review, we focus on specific strains of Gram-negative bacteria that have been the most studied in this context. We begin with a discussion of Earth-based microgravity simulation systems and how they may affect the genes and phenotypes of interest. We then summarize results from both Earth- and space-based systems showing effects of microgravity on motility-related genes and phenotypes.
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spelling doaj.art-ab8e96e5c9f145329132f9f5637eeb2e2023-11-02T09:23:50ZengNature Portfolionpj Microgravity2373-80652021-02-017111110.1038/s41526-021-00135-xThe influence of spaceflight and simulated microgravity on bacterial motility and chemotaxisJacqueline M. Acres0Myka Jaap Youngapelian1Jay Nadeau2Portland State UniversityPortland State UniversityPortland State UniversityAbstract As interest in space exploration rises, there is a growing need to quantify the impact of microgravity on the growth, survival, and adaptation of microorganisms, including those responsible for astronaut illness. Motility is a key microbial behavior that plays important roles in nutrient assimilation, tissue localization and invasion, pathogenicity, biofilm formation, and ultimately survival. Very few studies have specifically looked at the effects of microgravity on the phenotypes of microbial motility. However, genomic and transcriptomic studies give a broad general picture of overall gene expression that can be used to predict motility phenotypes based upon selected genes, such as those responsible for flagellar synthesis and function and/or taxis. In this review, we focus on specific strains of Gram-negative bacteria that have been the most studied in this context. We begin with a discussion of Earth-based microgravity simulation systems and how they may affect the genes and phenotypes of interest. We then summarize results from both Earth- and space-based systems showing effects of microgravity on motility-related genes and phenotypes.https://doi.org/10.1038/s41526-021-00135-x
spellingShingle Jacqueline M. Acres
Myka Jaap Youngapelian
Jay Nadeau
The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
npj Microgravity
title The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
title_full The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
title_fullStr The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
title_full_unstemmed The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
title_short The influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
title_sort influence of spaceflight and simulated microgravity on bacterial motility and chemotaxis
url https://doi.org/10.1038/s41526-021-00135-x
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