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Related Concept Videos

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...
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...
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...
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...
Microbial Interactions: Competition01:26

Microbial Interactions: Competition

Microbial competition is an ecological interaction in which microorganisms vie for limited resources within shared environments. These resources may include nutrients, space, or light, depending on the system. The intensity and outcome of competition are influenced by the environmental context, such as nutrient availability, spatial constraints, and the diversity of microbial species present. These competitive interactions significantly influence the structure, function, and resilience of...
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Related Experiment Video

Updated: Jun 12, 2026

Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores
09:17

Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores

Published on: March 26, 2019

Ongoing coevolution in mycorrhizal interactions.

Jason D Hoeksema1

  • 1Department of Biology, University of Mississippi, PO Box 1848, University, MS 38677, USA.

The New Phytologist
|June 8, 2010
PubMed
Summary

Coevolution significantly drives biological diversity, particularly in plant-fungal mycorrhizal interactions. Ongoing coevolutionary selection shapes species traits, with potential for adaptive differentiation in plant and fungal populations.

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Mycology
  • Plant Science

Background:

  • Coevolution is a major driver of biological diversity.
  • Mycorrhizal interactions, crucial for plants, likely originated through coevolution.
  • The role of ongoing coevolutionary processes in current trait evolution within mycorrhizal interactions remains unclear.

Purpose of the Study:

  • To investigate the importance of coevolutionary processes in the ongoing trait evolution of mycorrhizal interactions.
  • To explore the potential for coevolutionary selection to drive adaptive differentiation in plant and fungal populations.
  • To assess the utility of Selective Source Analysis (SSA) in studying coevolutionary dynamics.

Main Methods:

  • Review of empirical studies on heritable genetic variation in mycorrhizal traits (e.g., colonization intensity).

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Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays
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Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays

Published on: August 26, 2022

Related Experiment Videos

Last Updated: Jun 12, 2026

Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores
09:17

Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores

Published on: March 26, 2019

Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays
08:28

Mycorrhizal Maps as a Tool to Explore Colonization Patterns and Fungal Strategies in the Roots of Festuca rubra and Zea mays

Published on: August 26, 2022

  • Analysis of plant genotype x fungal genotype interactions influencing trait evolution.
  • Proposal for using Selective Source Analysis (SSA) in field reciprocal transplant experiments.

    • Main Results:

    • Candidate coevolving traits in mycorrhizal interactions show substantial heritable genetic variation.
    • Plant and fungal genotype interactions significantly influence trait evolution.
    • Empirical evidence suggests potential for coevolution to drive adaptive differentiation.

    Conclusions:

    • Coevolution is a potent force in maintaining and generating biological diversity.
    • Evidence suggests ongoing coevolutionary selection influences trait evolution in mycorrhizal interactions.
    • Further research, particularly using SSA in field experiments, is needed to quantify coevolutionary selection's importance.