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

Symbiosis00:58

Symbiosis

37.9K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
37.9K
Bacterial Phylum Bacteroidota01:26

Bacterial Phylum Bacteroidota

778
The phylum Bacteroidota includes over 700 species classified into four primary orders: Bacteroidales, Cytophagales, Flavobacteriales, and Sphingobacteriales. These gram-negative, non-sporulating rods exhibit saccharolytic capabilities and can be aerobic or fermentative, encompassing obligate aerobes, facultative aerobes, and obligate anaerobes. Many species display gliding motility, though some are nonmotile or use flagella. The genus Bacteroides is well-studied due to its significant role in...
778
Competition02:34

Competition

25.2K
When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.
25.2K
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

800
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,...
800
Bacterial Phylum Actinobacteria01:30

Bacterial Phylum Actinobacteria

782
Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
782
Biofilms01:29

Biofilms

1.7K
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Towards Key Principles of Host-Associated Microbiome Assembly.

Ecology letters·2026
Same author

Resolving the evolutionary duality of marine symbionts: redefining the genus <i>Endozoicomonas</i> and proposing <i>Neoendozoicomonas</i> gen. nov.

ISME communications·2026
Same author

Ammonia oxidation and recalcitrant carbon degradation fuel mixotrophic growth in the symbiont community of a deep-sea sponge.

Microbiome·2026
Same author

Exploring the transformative potential of multi-trophic strategies to enhance coral restoration and mitigate disease.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same author

Differing temperature regimes have no impact on the heat stress response of shallow and upper-mesophotic populations of a temperate calcareous sponge.

Proceedings. Biological sciences·2026
Same author

Seagrass-microbe interactions: a systematic review of current research trends and mapping of the core microbiome.

Biological reviews of the Cambridge Philosophical Society·2025
Same journal

Versatile microbial community responsible for nitrate turnover in a carbonate aquifer in southwest Germany.

FEMS microbiology ecology·2026
Same journal

Geochemistry shapes microbial diversity and selected functional traits in flowback and produced waters from hydraulically fractured formations.

FEMS microbiology ecology·2026
Same journal

Desiccation, but not shading, substantially shifts the microbial community composition of benthic microbial mats in meltwater ponds near Bratina Island, Antarctica.

FEMS microbiology ecology·2026
Same journal

Soil microbial ecology and microbiome-metabolite linkages improve understanding of ecosystem states along terrestrial-aquatic interfaces.

FEMS microbiology ecology·2026
Same journal

Electrogenic CH4 oxidation on a bioanode: putative extracellular electron transport system in Methylobacter sp.

FEMS microbiology ecology·2026
Same journal

Exploring local and regional drivers of microbial biodiversity across freshwater ponds.

FEMS microbiology ecology·2026
See all related articles

Related Experiment Video

Updated: Mar 8, 2026

Coincubation Assay for Quantifying Competitive Interactions between Vibrio fischeri Isolates
07:43

Coincubation Assay for Quantifying Competitive Interactions between Vibrio fischeri Isolates

Published on: July 22, 2019

8.7K

Competitive interactions between sponge-associated bacteria.

Ana I S Esteves, Alescia Cullen, Torsten Thomas

    FEMS Microbiology Ecology
    |January 25, 2017
    PubMed
    Summary
    This summary is machine-generated.

    Marine sponge bacteria compete, with some producing compounds that inhibit harmful microbes. This interaction shapes the sponge microbiome and protects the host from potential pathogens.

    Keywords:
    BacillusPseudovibrioantagonistic interactionsbacterial competitionsponge microbiomespongin-degrading bacteria

    More Related Videos

    Kinetic Visualization of Single-Cell Interspecies Bacterial Interactions
    08:33

    Kinetic Visualization of Single-Cell Interspecies Bacterial Interactions

    Published on: August 5, 2020

    7.6K
    Quantification of Interbacterial Competition using Single-Cell Fluorescence Imaging
    07:34

    Quantification of Interbacterial Competition using Single-Cell Fluorescence Imaging

    Published on: September 2, 2021

    3.9K

    Related Experiment Videos

    Last Updated: Mar 8, 2026

    Coincubation Assay for Quantifying Competitive Interactions between Vibrio fischeri Isolates
    07:43

    Coincubation Assay for Quantifying Competitive Interactions between Vibrio fischeri Isolates

    Published on: July 22, 2019

    8.7K
    Kinetic Visualization of Single-Cell Interspecies Bacterial Interactions
    08:33

    Kinetic Visualization of Single-Cell Interspecies Bacterial Interactions

    Published on: August 5, 2020

    7.6K
    Quantification of Interbacterial Competition using Single-Cell Fluorescence Imaging
    07:34

    Quantification of Interbacterial Competition using Single-Cell Fluorescence Imaging

    Published on: September 2, 2021

    3.9K

    Area of Science:

    • Marine microbiology
    • Bacterial ecology
    • Chemical ecology

    Background:

    • Marine sponges host diverse microbial communities, forming a complex holobiont.
    • Sponge-associated bacteria produce inhibitory metabolites, but their ecological roles are poorly understood.
    • Understanding microbial interactions is crucial for sponge health and biotechnology.

    Purpose of the Study:

    • To investigate competitive interactions among cultivated sponge-associated bacteria.
    • To determine if bacteria producing antimicrobial compounds can inhibit potentially pathogenic bacteria.
    • To explore the ecological significance of these antagonistic activities within the sponge microbiome.

    Main Methods:

    • Isolation and cultivation of marine sponge-associated bacteria.
    • Assays to detect sponge-degrading activity and antimicrobial inhibition.
    • Genetic analysis to identify the capacity for polyketide production.

    Main Results:

    • A sponge-degrading Bacillus sp. was identified, potentially harming the host.
    • This Bacillus isolate and related species were inhibited by specific sponge-derived Pseudovibrio spp.
    • Inhibitory activity in Pseudovibrio correlated with genes for polyketide production (e.g., erythronolide).

    Conclusions:

    • Antagonistic interactions mediated by sponge-associated bacteria influence microbiome composition.
    • Pseudovibrio spp. may protect sponges by inhibiting harmful bacteria like Bacillus.
    • Bacterial metabolites play a key role in maintaining sponge holobiont stability.