ArticleApplied and environmental microbiology2016
Enhancement of Swimming Speed Leads to a More-Efficient Chemotactic Response to Repellent.
Article in Applied and environmental microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Navigating bacterial motility through chemotaxis: from molecular mechanisms to physiological perspectives.Folia microbiologica · 2025Review
- The Effect of the Second Messenger c-di-GMP on Bacterial Chemotaxis in Escherichia coli.Applied and environmental microbiology · 2022Article
- Host-emitted amino acid cues regulate bacterial chemokinesis to enhance colonization.Cell host & microbe · 2021Article
- Connecting single-cell properties to collective behavior in multiple wild isolates of the Enterobacter cloacae complex.PloS one · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Negative chemotaxis refers to the motion of microorganisms away from regions with high concentrations of chemorepellents. In this study, we set controlled gradients of NiCl2, a chemorepellent, in microchannels to quantify the motion of Escherichia coli over a broad range of concentrations. The experimental technique measured the motion of the bacteria in space and time and further related the motion to the local concentration profile of the repellent. Results show that the swimming speed of bacteria increases with an increasing concentration of repellent, which in turn enhances the drift velocity. The contribution of the increased swimming speed to the total drift velocity was in the range of 20 to 40%, with the remaining contribution coming from the modulation of the tumble frequency. A simple model that incorporates receptor dynamics, including adaptation, intracellular signaling, and swimming speed variation, was able to qualitatively capture the observed trend in drift velocity.
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Registered trials
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