Related Experiment Video

Updated: Sep 2, 2026

Preparation, Imaging, and Quantification of Bacterial Surface Motility Assays
07:35

Preparation, Imaging, and Quantification of Bacterial Surface Motility Assays

Published on: April 7, 2015

Chemotaxis of Pseudomonas spp. to the polyaromatic hydrocarbon naphthalene

A C Grimm1, C S Harwood

  • 1Department of Microbiology, University of Iowa, Iowa City 52242, USA.

Applied and Environmental Microbiology
|November 5, 1997
PubMed

More Related Videos

Detection and Quantification of Mono-Rhamnolipids and Di-Rhamnolipids Produced by Pseudomonas aeruginosa04:37

Detection and Quantification of Mono-Rhamnolipids and Di-Rhamnolipids Produced by Pseudomonas aeruginosa

Published on: March 29, 2024

High-throughput Method for Observing Motility Phenotypes in Pseudomonas aeruginosa07:23

High-throughput Method for Observing Motility Phenotypes in Pseudomonas aeruginosa

Published on: June 20, 2025

Related Concept Videos

π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds01:14

π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds

In aromatic compounds, such as benzene, the circulation of (4n + 2) π-electrons sets up a diamagnetic or diatropic ring current around the perimeter of the molecule. This current induces a magnetic field that opposes the external field inside the ring and reinforces it on the outside. The protons in benzene are deshielded and exhibit high chemical shifts in the range 6.5–8.5 ppm. The shielding effect at the center of the ring is evident in complex aromatic molecules, such as annulenes. In...
Chemotaxis in E. coli01:27

Chemotaxis in E. coli

Chemotaxis in Escherichia coli is a sensory-driven motility mechanism that enables bacteria to navigate chemical gradients, moving toward beneficial environments while avoiding harmful conditions. This process relies on a signal transduction system integrating external chemical cues with flagellar motor control.Chemoreceptors and Signal DetectionE. coli detects chemical gradients through methyl-accepting chemotaxis proteins (MCPs), which are membrane-bound chemoreceptors that sense attractants...
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...