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

Communication01:03

Communication

8.7K
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
8.7K
Communication01:28

Communication

10.1K
Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
10.1K
Bacterial Signaling01:30

Bacterial Signaling

40.7K
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...
40.7K
Propagation of Waves01:07

Propagation of Waves

3.0K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
3.0K
Bacterial Transformation01:33

Bacterial Transformation

59.9K
In 1928, bacteriologist Frederick Griffith worked on a vaccine for pneumonia, which is caused by Streptococcus pneumoniae bacteria. Griffith studied two pneumonia strains in mice: one pathogenic and one non-pathogenic. Only the pathogenic strain killed host mice.
Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
59.9K
Propagation of Action Potentials01:23

Propagation of Action Potentials

9.4K
The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
9.4K

You might also read

Related Articles

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

Sort by
Same author

CHASE-independent cytokinin perception triggers 3',5'-cAMP signaling in <i>Sinorhizobium meliloti</i>.

Journal of bacteriology·2026
Same author

Rhizobial motility preference in root colonization of Medicago truncatula.

The New phytologist·2026
Same author

Tho1 and MOS11 promote nucleic acid double-strand unwinding by facilitating DEAD-box helicase oligomerization.

Nucleic acids research·2026
Same author

National landscape of pediatric and adult inpatient sickle cell disease care.

Blood advances·2025
Same author

RECKLEEN is a lambda Red/CRISPR-Cas9 based single plasmid platform for enhanced genome editing in Klebsiella pneumoniae.

Communications biology·2025
Same author

Process implementation and outcomes associated with patient-controlled analgesia in the emergency department for adult sickle cell patients.

The American journal of emergency medicine·2025
Same journal

Topological dependence of viral mutation spread in complex host-interaction networks.

Chaos (Woodbury, N.Y.)·2026
Same journal

Multifractal signatures of Hamiltonian chaos in Hyperion's rotational dynamics.

Chaos (Woodbury, N.Y.)·2026
Same journal

Exploring mechanisms for reversal of flow in tunicate hearts.

Chaos (Woodbury, N.Y.)·2026
Same journal

State estimation in spatiotemporal chaos via low-rank StatFEM.

Chaos (Woodbury, N.Y.)·2026
Same journal

Universal response functions in driven dissipative tunneling dynamics.

Chaos (Woodbury, N.Y.)·2026
Same journal

A network-based approach to characterize the dynamics of the coupling field of thermoacoustic oscillators in annular geometry.

Chaos (Woodbury, N.Y.)·2026
See all related articles

Related Experiment Video

Updated: Feb 3, 2026

Interfacing Microfluidics with Microelectrode Arrays for Studying Neuronal Communication and Axonal Signal Propagation
11:27

Interfacing Microfluidics with Microelectrode Arrays for Studying Neuronal Communication and Axonal Signal Propagation

Published on: December 8, 2018

8.6K

Front-propagation in bacterial inter-colony communication.

Vera Bettenworth1, Matthew McIntosh1, Anke Becker1

  • 1LOEWE-Zentrum für Synthetische Mikrobiologie (SYNMIKRO), Philipps-Universität Marburg.

Chaos (Woodbury, N.Y.)
|November 3, 2018
PubMed
Summary
This summary is machine-generated.

Bacterial quorum sensing uses signaling molecules for population control. Spatially distributed colonies show exponential growth, leading to a uniform speed of spreading signaling molecules, confirmed in Sinorhizobium meliloti experiments.

More Related Videos

Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats
10:03

Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats

Published on: December 7, 2021

5.4K
Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
08:36

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Published on: March 21, 2019

7.7K

Related Experiment Videos

Last Updated: Feb 3, 2026

Interfacing Microfluidics with Microelectrode Arrays for Studying Neuronal Communication and Axonal Signal Propagation
11:27

Interfacing Microfluidics with Microelectrode Arrays for Studying Neuronal Communication and Axonal Signal Propagation

Published on: December 8, 2018

8.6K
Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats
10:03

Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats

Published on: December 7, 2021

5.4K
Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
08:36

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Published on: March 21, 2019

7.7K

Area of Science:

  • Microbiology
  • Mathematical Biology
  • Biophysics

Background:

  • Bacteria coordinate behaviors using signaling molecules through quorum sensing.
  • Signal molecule concentration is critical for regulating population-wide responses.
  • Interactions between spatially distributed bacterial colonies introduce spatial dynamics.

Purpose of the Study:

  • To investigate the spatial spread of signaling molecules between interacting bacterial colonies.
  • To model the dynamics of quorum sensing in spatially extended bacterial populations.
  • To validate theoretical predictions with experimental data.

Main Methods:

  • Developing a theoretical model for signal molecule diffusion and bacterial population growth.
  • Analyzing the resulting concentration profiles of signaling molecules.
  • Conducting experiments with Sinorhizobium meliloti strains exhibiting fluorescence.

Main Results:

  • Bacterial population growth leads to an exponential concentration profile of signaling molecules.
  • This exponential profile spreads at a uniform speed.
  • Experimental results with Sinorhizobium meliloti confirmed the theoretical predictions.

Conclusions:

  • Spatially distributed bacterial colonies exhibit predictable signaling molecule spread dynamics.
  • Exponential growth drives the uniform speed of signal propagation in quorum sensing.
  • Sinorhizobium meliloti serves as a model organism for studying these spatial quorum sensing phenomena.