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

Binary Fission01:20

Binary Fission

Fission is the division of a single entity into two or more parts, which regenerate into separate entities that resemble the original. Organisms in the Archaea and Bacteria domains reproduce using binary fission, in which a parent cell splits into two parts that can each grow to the size of the original parent cell. This asexual method of reproduction produces cells that are all genetically identical.
Binary Fission01:26

Binary Fission

Binary fission is the primary mode of asexual reproduction in prokaryotes, such as bacteria. It results in the production of two genetically identical daughter cells. This highly efficient process ensures the rapid propagation of bacterial populations under favorable conditions and involves coordinated cellular and molecular events.DNA Replication and SeparationThe process begins with the replication of the bacterial chromosome. The circular DNA molecule unwinds at a specific origin of...
Diversity of Protists IV01:27

Diversity of Protists IV

Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
Overview of Algae01:28

Overview of Algae

The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
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...
Red Algae01:23

Red Algae

Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...

You might also read

Related Articles

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

Sort by
Same author

Biological and genomic resources for the cosmopolitan phytoplankton Bathycoccus: insights into genetic diversity and function of outlier chromosomes.

The Plant journal : for cell and molecular biology·2026
Same author

NPF2 is involved in intracellular pH regulation and ion balance in the diatom Phaeodactylum tricornutum.

The New phytologist·2026
Same author

Metabolic imaging of <i>Fragilariopsis cylindrus</i> in polar night conditions using full-field optical transmission tomography (FFOTT).

Biomedical optics express·2026
Same author

Tryptophanol enhances nitrogen assimilation in marine diatoms.

Nature communications·2026
Same author

Beyond red/far-red sensing: phytochrome perception of the marine light field by microalgae.

The New phytologist·2026
Same author

Phytochromes facilitate social behaviour in marine diatoms.

Nature communications·2026

Related Experiment Video

Updated: Jun 7, 2026

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function
06:21

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function

Published on: July 31, 2019

Diatom cell division in an environmental context.

Chris Bowler1, Alessandra De Martino, Angela Falciatore

  • 1Environmental and Evolutionary Genomics Section, Institut de Biologie de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique UMR8197 INSERM U1024, F-75005 Paris, France. cbowler@biologie.ens.fr

Current Opinion in Plant Biology
|October 26, 2010
PubMed
Summary
This summary is machine-generated.

Diatoms, algae from secondary endosymbiosis, exhibit unique cell division mechanisms unlike conventional eukaryotes. Their cell cycle regulation is finely tuned by internal and environmental signals, impacting ocean ecosystems.

More Related Videos

Extraction of Diatom DNA from Water Samples and Tissues
04:20

Extraction of Diatom DNA from Water Samples and Tissues

Published on: November 10, 2023

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration
14:44

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

Published on: June 7, 2024

Related Experiment Videos

Last Updated: Jun 7, 2026

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function
06:21

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function

Published on: July 31, 2019

Extraction of Diatom DNA from Water Samples and Tissues
04:20

Extraction of Diatom DNA from Water Samples and Tissues

Published on: November 10, 2023

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration
14:44

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

Published on: June 7, 2024

Area of Science:

  • Cell Biology
  • Marine Biology
  • Evolutionary Biology

Background:

  • Diatoms, originating from secondary endosymbiosis, possess distinct cell division processes compared to typical eukaryotic models.
  • Key atypical features include an acentriolar microtubule-organizing center, centripetal cytokinesis, and centrifugal cell wall synthesis.
  • The role of sexual reproduction in restoring cell size is a unique aspect of diatom biology.

Purpose of the Study:

  • To investigate the evolution, differentiation, and regulation of cell division in diatoms.
  • To understand the ecological significance of diatom growth and distribution in marine environments.
  • To explore how genome-wide analyses can elucidate cell cycle control in diatoms.

Main Methods:

  • Comparative analysis of cell division mechanisms in diatoms versus conventional eukaryotes.
  • Investigation of atypical features: acentriolar microtubule-organizing centers, cytokinesis, and cell wall neosynthesis.
  • Genome-wide analyses to identify regulatory pathways of the diatom cell cycle.

Main Results:

  • Diatom cell division mechanisms diverge significantly from those in other model eukaryotes.
  • Specific cellular processes like centripetal cytokinesis and centrifugal cell wall formation are characteristic.
  • Genome-wide studies reveal that the diatom cell cycle is responsive to both internal and external environmental cues.

Conclusions:

  • Diatoms present a unique model system for studying the evolution and regulation of eukaryotic cell division.
  • Understanding diatom cell cycle control is crucial for comprehending their ecological roles in oceans.
  • Environmental factors play a significant role in modulating diatom growth and distribution via cell cycle regulation.