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

Evolution of New Traits in Microbes01:24

Evolution of New Traits in Microbes

197
Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...
197
Evolutionary Processes in Microbes01:26

Evolutionary Processes in Microbes

201
Microbial evolution occurs rapidly due to short generation times and a variety of genetic processes, including horizontal gene transfer, mutation, recombination, and genetic drift. These mechanisms collectively enable microbes to adapt swiftly to changing environments.Horizontal gene transfer (HGT) allows genes to move between different species and occurs through three main mechanisms: conjugation, transformation, and transduction. Conjugation involves direct cell-to-cell contact for DNA...
201
Evolution of Microbial Genome01:08

Evolution of Microbial Genome

107
Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.
107
Deep Sea Microbial Ecology01:18

Deep Sea Microbial Ecology

53
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...
53
Transduction01:16

Transduction

3.0K
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome...
3.0K
Biosynthesis in Bacteria01:24

Biosynthesis in Bacteria

1.0K
Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...
1.0K

You might also read

Related Articles

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

Sort by
Same author

Machine Learning-Guided Discovery of Bacterial-Selective Membrane-Active Compounds Reveals Mechanistic Bias in Antibiotic Training Datasets.

bioRxiv : the preprint server for biology·2026
Same author

CBASS limits bacteriophage production while maintaining cell viability in Pseudomonas aeruginosa.

Cell host & microbe·2026
Same author

Growth in confinement promotes <i>Pseudomonas aeruginosa</i> tolerance to antibiotics.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Counting to two: how phages decide between lysis and lysogeny.

bioRxiv : the preprint server for biology·2026
Same author

CBASS limits bacteriophage production while maintaining cell viability in <i>Pseudomonas aeruginosa</i>.

bioRxiv : the preprint server for biology·2026
Same author

<i>Pseudomonas aeruginosa</i> deploys competitor-specific antagonistic strategies.

bioRxiv : the preprint server for biology·2026
Same journal

Increased rates of hybridization in swordtails are associated with water pollution.

Current biology : CB·2026
Same journal

Visual uncertainty and task demands shape active sensing strategies in mice.

Current biology : CB·2026
Same journal

An adaptable, self-organizing, single-cell morphology circuit optimizes suctorian predatory trap structure.

Current biology : CB·2026
Same journal

Temporal tuning of switch-like virulence expression resolves environmental uncertainty through phenotypic heterogeneity.

Current biology : CB·2026
Same journal

An abstract relational map emerges in the human medial prefrontal cortex with consolidation.

Current biology : CB·2026
Same journal

Phloem evolved gradually and asynchronously to xylem in early vascular plants.

Current biology : CB·2026
See all related articles

Related Experiment Video

Updated: Apr 28, 2026

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.6K

Bacterial evolution: rewiring modules to get in shape.

Alexandre Persat1, Zemer Gitai1

  • 1Department of Molecular Biology, Princeton University, Lewis Thomas Laboratory, Room 355, Princeton, NJ 08544, USA.

Current Biology : CB
|June 4, 2014
PubMed
Summary
This summary is machine-generated.

Bacterial shape evolution is complex. A study shows Asticcacaulis species evolved new shapes by repurposing a regulatory protein to alter stalk development.

More Related Videos

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat
06:03

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat

Published on: September 20, 2016

13.2K
Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
15:00

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

5.1K

Related Experiment Videos

Last Updated: Apr 28, 2026

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.6K
Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat
06:03

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat

Published on: September 20, 2016

13.2K
Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
15:00

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

5.1K

Area of Science:

  • Microbiology
  • Evolutionary Biology
  • Cell Biology

Background:

  • Bacterial species exhibit diverse morphologies.
  • Mechanisms driving bacterial shape evolution are not fully understood.

Purpose of the Study:

  • To investigate the evolutionary mechanisms behind bacterial shape diversification.
  • To understand how regulatory proteins influence bacterial morphology.

Main Methods:

  • Comparative analysis of Asticcacaulis species.
  • Investigating the role of ancestral regulatory proteins in shape determination.

Main Results:

  • Two Asticcacaulis species repurposed an ancestral regulatory protein.
  • This repurposing altered modules controlling stalk regulation, localization, and synthesis.
  • New bacterial shapes were generated through this rewiring.

Conclusions:

  • Ancestral regulatory proteins can be key drivers of bacterial morphological evolution.
  • Rewiring existing genetic modules provides a mechanism for generating novel bacterial shapes.