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

Microbial Interactions: Parasitism01:22

Microbial Interactions: Parasitism

Parasitism is a form of microbial interaction in which parasitic microbes exploit a host organism for nutrients and shelter, often at the host's expense. Unlike mutualistic relationships, where both organisms benefit, parasitism benefits only the parasite and harms the host.Classification of ParasitesMicrobial parasites are broadly classified based on their location relative to the host.Ectoparasites remain on the host’s surface, such as the skin or outer tissues, drawing nutrients...
Colonisation of Pathogens01:25

Colonisation of Pathogens

Pathogen colonization of host tissues is a critical step in the development of infectious diseases. Various pathogenic microorganisms, including bacteria, fungi, viruses, and protozoa, have evolved complex strategies to attach to, invade, and persist within host environments. These mechanisms enable pathogens to establish infections, evade immune responses, and resist antimicrobial treatments.Attachment to Host CellsIn bacteria, colonization typically begins with adherence to host epithelial...
Microbial Interactions: Mutualism01:25

Microbial Interactions: Mutualism

Mutualism is a symbiotic interaction in which all participating organisms benefit. These relationships can be obligate or facultative and are fundamental to ecosystem functions across diverse biological systems.Plant–Fungi MutualismOne well-known example is the association between plant roots and mycorrhizal fungi, such as Rhizophagus species. The fungal hyphae penetrate the root hairs and the epidermis, forming an extensive hyphal network that establishes a symbiotic association. Through this...
Microbial Interactions: Cooperation01:26

Microbial Interactions: Cooperation

Microbial cooperation involves beneficial interactions in which different species work together for individual or mutual advantage. These interactions can profoundly influence ecological dynamics and evolutionary processes, and they are essential to many pathogenic and symbiotic relationships.Nematode–Bacteria CooperationA striking example is the relationship between the Gram-negative bacterium Xenorhabdus nematophila and the parasitic nematode Steinernema carpocapsae. Juvenile nematodes...
Introduction to the Human Microbiota01:22

Introduction to the Human Microbiota

Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity, and disease...
Microbe-Plant Interactions01:09

Microbe-Plant Interactions

Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...

You might also read

Related Articles

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

Sort by
Same author

Mitochondrial toxins cause widespread downregulation of pathways in X-linked dystonia-parkinsonism patient-derived neurons.

Stem cell reports·2026
Same author

Sea urchin eggs contain a plastid-derived structure that contributes to their development.

PLoS biology·2026
Same author

Urinary Exosomal miRNAs as Non-Invasive Biomarkers Linked to Podocyte Morphometry in CKD.

Cells·2026
Same author

Robust antibiotic sensitization of pathogenic Pseudomonas aeruginosa via negative hysteresis in the cell envelope.

Nature communications·2026
Same author

Multi-Omics Characterization of a KIF1C Structural Variant in a Patient with a Complex Movement Disorder Partially Responsive to Deep Brain Stimulation.

Cerebellum (London, England)·2026
Same author

Lifestyle change accelerates epigenetic ageing in King penguins.

Nature communications·2026

Related Experiment Video

Updated: May 27, 2026

Generation of a Bovine Primary Enteroid-Derived Two-Dimensional Monolayer Culture System for Applications in Translational Biomedical Research
07:56

Generation of a Bovine Primary Enteroid-Derived Two-Dimensional Monolayer Culture System for Applications in Translational Biomedical Research

Published on: April 5, 2024

Where simplicity meets complexity: hydra, a model for host-microbe interactions.

René Augustin1, Sebastian Fraune, Sören Franzenburg

  • 1Zoological Institute, Christian-Albrechts-University Kiel, Olshausenstr. 40, Kiel, 24098, Germany. raugustin@zoologie.uni-kiel.de

Advances in Experimental Medicine and Biology
|December 1, 2011
PubMed
Summary
This summary is machine-generated.

The hologenome theory of evolution views hosts and their microbes as a unit. Hydra, a simple model organism, offers new insights into host-microbe interactions and microbe-dependent lifestyles.

More Related Videos

The Nematode Caenorhabditis Elegans - A Versatile In Vivo Model to Study Host-microbe Interactions
11:58

The Nematode Caenorhabditis Elegans - A Versatile In Vivo Model to Study Host-microbe Interactions

Published on: October 18, 2017

Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus
11:28

Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus

Published on: October 7, 2011

Related Experiment Videos

Last Updated: May 27, 2026

Generation of a Bovine Primary Enteroid-Derived Two-Dimensional Monolayer Culture System for Applications in Translational Biomedical Research
07:56

Generation of a Bovine Primary Enteroid-Derived Two-Dimensional Monolayer Culture System for Applications in Translational Biomedical Research

Published on: April 5, 2024

The Nematode Caenorhabditis Elegans - A Versatile In Vivo Model to Study Host-microbe Interactions
11:58

The Nematode Caenorhabditis Elegans - A Versatile In Vivo Model to Study Host-microbe Interactions

Published on: October 18, 2017

Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus
11:28

Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus

Published on: October 7, 2011

Area of Science:

  • Microbiology
  • Immunology
  • Evolutionary Biology
  • Symbiosis Research

Background:

  • Historically, microbiology and immunology focused on pathogens, overlooking beneficial commensal bacteria.
  • The hologenome theory of evolution posits that the holobiont (host and its associated microbes) is the unit of evolutionary selection.
  • Understanding complex host-microbe interactions is crucial for comprehending symbiotic functions.

Purpose of the Study:

  • To introduce Hydra as a simplified model organism for studying host-microbe interactions.
  • To leverage Hydra's unique biological characteristics for dissecting fundamental principles of symbiosis.
  • To explore the evolutionary consequences of a strictly microbe-dependent lifestyle.

Main Methods:

  • Utilizing Hydra, an organism with a simple epithelial structure and few cell types.
  • Employing a fully sequenced genome and available genomic tools, including transgenesis in Hydra.
  • Analyzing the holistic system of microbe-host interactions within Hydra.

Main Results:

  • Hydra presents a simplified system with only two cell layers and three stem cell lineages.
  • The availability of genomic tools and a sequenced genome facilitates detailed study.
  • Observations highlight the profound impact of microbe-dependent lifestyles.

Conclusions:

  • Hydra serves as an effective model for dissecting complex host-microbe interactions.
  • This model can elucidate fundamental principles governing symbiotic relationships.
  • Studying Hydra offers insights into the evolutionary implications of microbial dependence.