Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bacterial Signaling

Bacterial Signaling

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...

Gene Regulation in Microbial Communities: Quorum Sensing

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,...

Global Regulatory Systems

Global Regulatory Systems

Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...

Regulation of Bacterial Virulence

Regulation of Bacterial Virulence

Pathogenic bacteria employ a range of regulatory mechanisms to modulate the expression of virulence genes in response to environmental and host-derived signals. These mechanisms ensure that virulence factors are expressed only under favorable conditions, thereby optimizing infection and survival strategies.Mechanisms of Virulence RegulationKey regulatory strategies include:Two-Component Systems: These consist of a membrane-bound sensor kinase and a cytoplasmic response regulator. Environmental...

Coordination of Gene Expression Processes in Bacteria

Coordination of Gene Expression Processes in Bacteria

The DNA replication, transcription, and translation processes are intricately coupled in bacteria, allowing efficient gene expression and rapid protein synthesis. While this physical and functional coordination is advantageous, it introduces challenges that bacteria overcome through specific regulatory mechanisms.Coupling of Replication, Transcription, and TranslationThe coupling of replication, transcription, and translation is a hallmark of bacterial gene expression. As the replisome unwinds...

Other Stress Responses in Bacteria

Other Stress Responses in Bacteria

Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...

You might also read

Related Articles

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

Sort by

Same author

LncRNA NEAT1 promotes autophagy via regulating miR-204/ATG3 and enhanced cell resistance to sorafenib in hepatocellular carcinoma.

Journal of cellular physiology·2019

Same author

Adverse drug reaction detection via a multihop self-attention mechanism.

BMC bioinformatics·2019

Same author

[Analysis of a pedigree with autosomal dominant intermediate Charcot-Marie-Tooth disease type E and nephropathy].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics·2019

Same author

Autophagy: A novel mechanism of chemoresistance in cancers.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2019

Same author

Novel mutations in DPM3 cause dystroglycanopathy with central nervous system involvement.

Clinical genetics·2019

Same author

Effects of wearable power assist device on low back fatigue during repetitive lifting tasks.

Clinical biomechanics (Bristol, Avon)·2019

Same journal

Construction and implementation of an ICF-based integrated teaching model for genetic disease severity assessment.

Yi chuan = Hereditas·2026

Same journal

Identification and prenatal genetic testing of pathogenic variants in a case of myoclonus-dystonia syndrome.

Yi chuan = Hereditas·2026

Same journal

A novel strategy to enhance precise targeting of the RNA base editor mxABE.

Yi chuan = Hereditas·2026

Same journal

Functional study of the soybean rapid alkalinization factor <i>GmRALF34s</i> in response to saline-alkali stress.

Yi chuan = Hereditas·2026

Same journal

Role of <i>broad</i> in intestinal stem cells of adult <i>Drosophila</i>.

Yi chuan = Hereditas·2026

Same journal

The p53 R267W mutation intervenes p21-mediated cell cycle arrest and promotes proliferation and migration of lung cancer cells.

Yi chuan = Hereditas·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 25, 2026

Time-lapse Imaging of Bacterial Swarms and the Collective Stress Response

Time-lapse Imaging of Bacterial Swarms and the Collective Stress Response

Published on: May 23, 2020

[Bacterial quorum sensing in an evolutionary perspective].

Lin Chen¹, Liang Yang, Kang-Min Duan

¹Northwest University, Xi'an, China. chenlin@nwu.edu.cn

Yi Chuan = Hereditas

|February 7, 2012

Summary

This summary is machine-generated.

Bacteria communicate using quorum sensing (QS) to coordinate population behaviors. This study explores the dynamic evolution of QS systems, influenced by environmental factors and microbial community changes.

More Related Videos

Synthesis and Assay of Vibrio Quorum Sensing Inhibitors

Synthesis and Assay of Vibrio Quorum Sensing Inhibitors

Published on: May 31, 2024

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

Published on: January 1, 2016

Related Experiment Videos

Last Updated: May 25, 2026

Time-lapse Imaging of Bacterial Swarms and the Collective Stress Response

Time-lapse Imaging of Bacterial Swarms and the Collective Stress Response

Published on: May 23, 2020

Synthesis and Assay of Vibrio Quorum Sensing Inhibitors

Synthesis and Assay of Vibrio Quorum Sensing Inhibitors

Published on: May 31, 2024

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

Published on: January 1, 2016

Area of Science:

Microbiology
Evolutionary Biology
Bacterial Communication

Context:

Traditionally, bacteria were viewed as solitary organisms.
Recent research reveals bacterial communication and population behaviors via quorum sensing (QS).
QS regulates behaviors initiated at specific cell densities.

Purpose:

To discuss the evolutionary processes of bacterial quorum-sensing systems.
To integrate recent findings and advancements in the field.
To examine the dynamic nature of QS evolution.

Summary:

Quorum sensing (QS) enables bacteria to coordinate group behaviors.
The evolution of QS is a dynamic process, significantly impacted by environmental factors (temperature, pH, nutrients).
Genetic exchanges and microbial community shifts also influence QS evolution, suggesting cheater advantages are transient.

Impact:

Highlights the dynamic and environmentally responsive nature of bacterial cooperation.
Suggests that the evolutionary advantages for 'cheaters' in QS systems are limited and context-dependent.
Provides insights into the complex evolutionary trajectories of microbial social behaviors.