Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Chemotaxis in E. coli01:27

Chemotaxis in E. coli

1.1K
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...
1.1K
Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

5.9K
Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
5.9K
Flagella and Motility in Bacteria01:18

Flagella and Motility in Bacteria

4.0K
Flagella are specialized, thread-like structures that extend from a bacteria's cell envelope. They play a crucial role in motility and chemotaxis. Their structural organization and functioning exemplify sophisticated biological engineering, enabling bacterial survival and adaptability in diverse environments.Structure of the FlagellumA bacterial flagellum consists of three key components: the filament, the hook, and basal body. The filament, a long, helical structure composed of repeating...
4.0K
Bacterial Signaling01:30

Bacterial Signaling

42.2K
Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
42.2K
Other Unique Bacteria01:18

Other Unique Bacteria

504
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
504

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dual responsive enzyme mimicking activity of AgX (X=Cl, Br, I) nanoparticles and its application for cancer cell detection.

ACS applied materials & interfaces·2014
Same author

Naphthoquinone-directed C-H annulation and C(sp³)-H bond cleavage: one-pot synthesis of tetracyclic naphthoxazoles.

The Journal of organic chemistry·2014
Same author

Pulmonary toxicity in mice following exposure to cerium chloride.

Biological trace element research·2014
Same author

Role of surgery in the treatment of patients with high-risk neuroblastoma who have a poor response to induction chemotherapy.

Journal of pediatric surgery·2014
Same author

Glutathione-S-transferase polymorphisms (GSTM1, GSTT1 and GSTP1) and acute leukemia risk in Asians: a meta-analysis.

Asian Pacific journal of cancer prevention : APJCP·2014
Same author

Influence of casting solvent on phenyl ordering at the surface of spin cast polymer thin films.

Journal of colloid and interface science·2014
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Feb 26, 2026

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
10:07

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

6.7K

Growth-dependent behavioral difference in bacterial chemotaxis.

Chi Zhang1, Rongjing Zhang1, Junhua Yuan1

  • 1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.

Physical Review. E
|July 16, 2017
PubMed
Summary
This summary is machine-generated.

Bacteria adapt faster to nutrient-poor conditions, improving their ability to find food. This study reveals the molecular basis for this enhanced chemotaxis, crucial for survival in changing environments.

More Related Videos

In Situ Chemotaxis Assay to Examine Microbial Behavior in Aquatic Ecosystems
07:23

In Situ Chemotaxis Assay to Examine Microbial Behavior in Aquatic Ecosystems

Published on: May 5, 2020

7.9K
A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients
09:28

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients

Published on: April 19, 2010

12.6K

Related Experiment Videos

Last Updated: Feb 26, 2026

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
10:07

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

6.7K
In Situ Chemotaxis Assay to Examine Microbial Behavior in Aquatic Ecosystems
07:23

In Situ Chemotaxis Assay to Examine Microbial Behavior in Aquatic Ecosystems

Published on: May 5, 2020

7.9K
A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients
09:28

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients

Published on: April 19, 2010

12.6K

Area of Science:

  • Microbiology
  • Cell Biology
  • Biophysics

Background:

  • Cells exhibit adaptive behaviors in response to environmental cues.
  • Bacterial chemotaxis, the movement towards attractants, is a key model for studying cellular adaptation.
  • Growth conditions significantly influence cellular behavior and molecular regulation.

Purpose of the Study:

  • To investigate how bacterial growth environments modulate chemotaxis.
  • To elucidate the molecular mechanisms underlying growth-dependent behavioral changes.
  • To understand the physiological impact of altered chemotaxis in varying environments.

Main Methods:

  • Comparative analysis of bacterial chemotaxis in nutrient-rich versus nutrient-poor media.
  • Coarse-grained modeling to identify molecular mechanisms of adaptation.
  • Simulations of bacterial motion in dynamic and static environments with nutrient gradients.

Main Results:

  • Bacteria cultivated in nutrient-poor media display accelerated chemotaxis adaptation.
  • Faster adaptation enhances bacterial response to environmental changes.
  • Improved localization to nutrient concentration peaks observed in nutrient-deprived bacteria.

Conclusions:

  • Nutrient availability fundamentally shapes bacterial chemotactic behavior.
  • Enhanced chemotaxis in nutrient-poor conditions is a survival advantage.
  • Molecular mechanisms identified provide insights into cellular environmental sensing and response.