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

Global Regulatory Systems01:28

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...
Other Stress Responses in Bacteria01:30

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...
Regulation of Bacterial Virulence01:28

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...
Deep Sea Microbial Ecology01:18

Deep Sea Microbial Ecology

The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches extending beyond...
Stringent Response in E. coli01:23

Stringent Response in E. coli

Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
Bacterial Protein Maturation01:26

Bacterial Protein Maturation

Bacterial protein maturation is a tightly regulated process that ensures newly synthesized polypeptides achieve correct functional conformations. This maturation involves a series of modifications, folding events, and quality control steps, often assisted by specialized chaperone proteins.N-Terminal ModificationsThe maturation of bacterial polypeptides begins cotranslationally as the polypeptide exits the ribosome. The first amino acid, N-formylmethionine (fMet), is typically modified at the...

You might also read

Related Articles

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

Sort by
Same author

<i>Enterococcus faecalis</i> alters antibiotic susceptibility in <i>Pseudomonas aeruginosa</i> mixed-species biofilms.

Journal of bacteriology·2026
Same author

Asymmetric envelope surface disposition of secreted protein YjbI controls bimodal antibiotic susceptibilities in C. crescentus.

The EMBO journal·2026
Same author

Electron Cryo-Tomography Reveals the <i>Caulobacter vibrioides</i> Tight Adherence Pilus Architecture.

bioRxiv : the preprint server for biology·2025
Same author

A conserved <i>Chlamydiota</i>-specific Type III Secretion System effector linked to stress response.

Microbiology (Reading, England)·2025
Same author

Switching Residues: A Platform for the Synthesis of Fidaxomicin Antibiotics.

Angewandte Chemie (International ed. in English)·2024
Same author

Evolution of paralogous multicomponent systems for site-specific O-sialylation of flagellin in Gram-negative and Gram-positive bacteria.

Current biology : CB·2024

Related Experiment Video

Updated: May 26, 2026

DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems
12:24

DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems

Published on: July 21, 2014

Developmental and environmental regulatory pathways in alpha-proteobacteria.

Silvia Ardissone1, Patrick H Viollier

  • 1Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland.

Frontiers in Bioscience (Landmark Edition)
|December 29, 2011
PubMed
Summary
This summary is machine-generated.

This study reviews how bacteria like Caulobacter crescentus control cell division and differentiation. It highlights conserved mechanisms in alpha-proteobacteria for cell cycle progression and diverse lifestyles.

More Related Videos

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues
07:10

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues

Published on: February 19, 2019

Functional Complementation Analysis (FCA): A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways
09:27

Functional Complementation Analysis (FCA): A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways

Published on: June 24, 2016

Related Experiment Videos

Last Updated: May 26, 2026

DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems
12:24

DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems

Published on: July 21, 2014

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues
07:10

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues

Published on: February 19, 2019

Functional Complementation Analysis (FCA): A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways
09:27

Functional Complementation Analysis (FCA): A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways

Published on: June 24, 2016

Area of Science:

  • Microbiology
  • Cell Biology
  • Bacterial Development

Background:

  • Asymmetrical cell division is crucial in prokaryotes and eukaryotes for generating distinct daughter cells.
  • Alpha-proteobacteria, including Caulobacter crescentus, Agrobacterium, and Brucella, exhibit asymmetrical division.
  • Caulobacter crescentus serves as a model organism for studying cell cycle regulation and differentiation.

Purpose of the Study:

  • To review recent advances in understanding spatial and temporal control of cell processes in alpha-proteobacteria.
  • To focus on conserved regulatory networks governing cell cycle, DNA replication, and differentiation.
  • To discuss the regulation of specific phenotypes and lifestyle adaptations in Caulobacter crescentus and related bacteria.

Main Methods:

  • Literature review of recent research on bacterial cell cycle and differentiation.
  • Analysis of conserved regulatory networks across alpha-proteobacteria.
  • Focus on Caulobacter crescentus as a model system.

Main Results:

  • Detailed understanding of spatial and temporal control mechanisms in bacterial cell division.
  • Insights into conserved pathways for DNA replication, partitioning, and cell division.
  • Elucidation of regulation for cell cycle-dependent phenotypes and lifestyle adaptations.

Conclusions:

  • Conserved regulatory networks in alpha-proteobacteria govern key cellular processes.
  • Caulobacter crescentus provides a robust model for dissecting bacterial development.
  • Understanding these processes is vital for various bacterial lifestyles and pathogenesis.