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

Bacterial Phylum Cyanobacteria01:30

Bacterial Phylum Cyanobacteria

Cyanobacteria are a diverse group of oxygenic, phototrophic bacteria that played a pivotal role in converting Earth’s atmosphere from anoxic to oxygen-rich billions of years ago. They exhibit remarkable morphological diversity, ranging from unicellular forms to filamentous types, with cell sizes varying between 0.5 μm and 100 μm. Cyanobacteria are classified into five groups: Chroococcales (unicellular, dividing by binary fission), Pleurocapsales (unicellular, dividing by multiple fission),...
Freshwater Microbial Ecology01:24

Freshwater Microbial Ecology

Freshwater systems such as streams, rivers, and lakes exhibit distinct physical and biological characteristics that influence their microbial communities. These environments are broadly categorized into lotic systems—those with flowing waters like streams and most rivers—and lentic systems, which include still or slow-moving waters such as lakes, ponds, and marshes.In lentic systems, phytoplankton drive primary production, generating autochthonous organic carbon. In contrast, lotic systems...
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...
Anoxygenic Phototrophic Bacteria01:28

Anoxygenic Phototrophic Bacteria

Anoxygenic phototrophic bacteria are a diverse group of microorganisms that perform photosynthesis without producing oxygen. They primarily include purple sulfur bacteria, purple nonsulfur bacteria, green sulfur bacteria, and green nonsulfur bacteria. These bacteria are classified into the Gammaproteobacteria, Alphaproteobacteria, Betaproteobacteria, Chlorobi, and Chloroflexi lineages, each with distinct physiological and ecological adaptations.Purple sulfur bacteria belong to the...
Bioremediation00:46

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
Anoxygenic Photosynthesis01:30

Anoxygenic Photosynthesis

Anoxygenic photosynthesis is a phototrophic process that captures light energy to drive carbon fixation without producing molecular oxygen. Unlike oxygenic photosynthesis, which utilizes water as an electron donor and releases oxygen, anoxygenic phototrophs use alternative electron donors such as hydrogen sulfide (H₂S), elemental sulfur (S⁰), or thiosulfate (S₂O₃²⁻). This process is carried out by diverse groups of bacteria, including purple bacteria, green sulfur bacteria, heliobacteria, and...

You might also read

Related Articles

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

Sort by
Same author

AI-Accelerated Structure Elucidation of Boavistamides A-C, Cyclic Depsipeptides from a Marine Filamentous Cyanobacterium Collected in Cabo Verde.

bioRxiv : the preprint server for biology·2026
Same author

AI-Accelerated Structure Elucidation of Boavistamides A<b>-</b>C, Cyclic Depsipeptides from a Marine Filamentous Cyanobacterium Collected in Cabo Verde.

Journal of natural products·2026
Same author

Discovery of bridged melanostatin derivatives as potent allosteric modulators of the dopamine D<sub>2</sub> receptors with improved permeability.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2026
Same author

Computational pipeline reveals nature's untapped reservoir of halogenating enzymes.

bioRxiv : the preprint server for biology·2026
Same author

Diversity of FAAL enzymes and prediction of their substrate specificity using FAALPred.

Protein science : a publication of the Protein Society·2026
Same author

Phosphorylation of peptides by a kinase domain in cyanobactin pathways.

Nature communications·2025
Same journal

Protease-driven approaches for wound eschar debridement and biofilm disruption: current advances, future prospects, and limitations.

Critical reviews in microbiology·2026
Same journal

Environmental regulation of pathogenicity islands by nucleoid-associated proteins in bacteria.

Critical reviews in microbiology·2026
Same journal

New strains, new threats: the rise of atypical non-typhoidal <i>Salmonella</i> serovars and what it means for global health.

Critical reviews in microbiology·2026
Same journal

Tripartite warfare: decoding the cell-virus-virophage arms race.

Critical reviews in microbiology·2026
Same journal

Anti-<i>Candida albicans</i> natural products: convergent technologies revolutionizing discovery from bioactivity assessment to targeted mechanisms.

Critical reviews in microbiology·2026
Same journal

Retraction Notice.

Critical reviews in microbiology·2026
See all related articles

Related Experiment Video

Updated: Jun 19, 2026

Generation of Marked and Markerless Mutants in Model Cyanobacterial Species
11:45

Generation of Marked and Markerless Mutants in Model Cyanobacterial Species

Published on: May 29, 2016

Allelopathy in freshwater cyanobacteria.

Pedro N Leão1, M Teresa S D Vasconcelos, Vítor M Vasconcelos

  • 1CIIMAR/CIMAR-LA, Centro Interdisciplinar de Investigação Marinha e Ambiental, Porto, Portugal. pleao@ciimar.up.pt

Critical Reviews in Microbiology
|October 30, 2009
PubMed
Summary
This summary is machine-generated.

Freshwater cyanobacteria release compounds that affect other aquatic life. Understanding these allelopathic interactions is key to managing aquatic ecosystems and understanding cyanobacterial bloom impacts.

More Related Videos

Early Detection of Cyanobacterial Blooms and Associated Cyanotoxins using Fast Detection Strategy
07:13

Early Detection of Cyanobacterial Blooms and Associated Cyanotoxins using Fast Detection Strategy

Published on: February 25, 2021

Natural Transformation, Protein Expression, and Cryoconservation of the Filamentous Cyanobacterium Phormidium lacuna
11:47

Natural Transformation, Protein Expression, and Cryoconservation of the Filamentous Cyanobacterium Phormidium lacuna

Published on: February 1, 2022

Related Experiment Videos

Last Updated: Jun 19, 2026

Generation of Marked and Markerless Mutants in Model Cyanobacterial Species
11:45

Generation of Marked and Markerless Mutants in Model Cyanobacterial Species

Published on: May 29, 2016

Early Detection of Cyanobacterial Blooms and Associated Cyanotoxins using Fast Detection Strategy
07:13

Early Detection of Cyanobacterial Blooms and Associated Cyanotoxins using Fast Detection Strategy

Published on: February 25, 2021

Natural Transformation, Protein Expression, and Cryoconservation of the Filamentous Cyanobacterium Phormidium lacuna
11:47

Natural Transformation, Protein Expression, and Cryoconservation of the Filamentous Cyanobacterium Phormidium lacuna

Published on: February 1, 2022

Area of Science:

  • Aquatic Ecology
  • Phycology
  • Biogeochemistry

Background:

  • Freshwater cyanobacteria produce bioactive secondary metabolites.
  • These compounds can reach high concentrations during blooms.
  • Some metabolites exhibit allelopathic properties, affecting other aquatic organisms.

Purpose of the Study:

  • To review current understanding of cyanobacterial allelopathy.
  • To highlight recent discoveries in allelochemicals and mechanisms.
  • To discuss the ecological relevance and future research directions.

Main Methods:

  • Literature review of recent research.
  • Analysis of ecosystem-level studies.
  • Discussion of laboratory findings and field study needs.

Main Results:

  • New allelopathic properties and chemicals in cyanobacteria have been identified.
  • Mechanisms of allelopathy are being elucidated.
  • Ecosystem approaches provide insights into allelopathic interactions and environmental modulation.

Conclusions:

  • Cyanobacterial allelopathy plays a role in aquatic ecosystems, but its ecological significance requires further investigation.
  • Field studies, chemical characterization, and omics approaches are crucial for advancing understanding.
  • Clarifying the role of allelopathy is essential for managing cyanobacterial blooms and their impacts.