PapersFlow Research Brief
Mycorrhizal Fungi and Plant Interactions
Research Guide
What is Mycorrhizal Fungi and Plant Interactions?
Mycorrhizal fungi and plant interactions refer to the symbiotic associations between mycorrhizal fungi and plant roots that facilitate nutrient exchange, enhance plant growth, and influence ecosystem processes such as soil biota and biodiversity.
Research on mycorrhizal fungi and plant interactions encompasses over 3,202,900 works focused on fungal diversity, DNA barcoding, nutrient cycling, and symbiotic impacts on plant health. Key methods include ITS primers for identifying basidiomycete mycorrhizae, as developed by Gardes and Bruns (1993), and staining techniques for assessing vesicular-arbuscular mycorrhizal infection, refined by Phillips and Hayman (1970). These interactions drive ecosystem functioning, with soil microbes including mycorrhizae acting as drivers of plant diversity and productivity, according to van der Heijden et al. (2007).
Topic Hierarchy
Research Sub-Topics
Arbuscular Mycorrhizal Fungi Symbiosis
Researchers investigate molecular mechanisms of AM fungal colonization, nutrient exchange via arbuscules, and signaling pathways like common symbiosis pathway genes. Field and greenhouse experiments quantify phosphorus uptake benefits.
Ectomycorrhizal Fungal Communities
Studies profile EM fungal diversity using ITS metabarcoding, analyze community assembly via environmental filtering, and assess host specificity in forest ecosystems. Long-term plots track succession dynamics.
Mycorrhizal Contributions to Nutrient Cycling
This area examines fungal hyphal networks in soil nitrogen and phosphorus transformations, including enzyme activities and organic matter decomposition. Isotope tracing quantifies mycorrhizosphere contributions.
DNA Barcoding of Mycorrhizal Fungi
Researchers develop and validate multi-locus barcoding using ITS, LSU, and RPB1 for species delimitation in ericoid and orchid mycorrhizae. Bioinformatic pipelines handle high-throughput environmental sequencing data.
Mycorrhizal Responses to Environmental Change
Experiments test AMF and EM shifts under elevated CO2, drought, and nitrogen deposition using mesocosms and global meta-analyses. Community turnover affects plant community resistance.
Why It Matters
Mycorrhizal fungi and plant interactions support nutrient cycling and plant growth, with applications in agriculture and forestry. For instance, arbuscular mycorrhizal symbiosis influences maize zinc uptake under varying soil phosphorus levels, as shown in a recent preprint, demonstrating direct benefits for crop nutrition. In restoration ecology, early inoculation with arbuscular mycorrhizal fungi shifts rhizosphere functionality, enhancing prebiotic efficacy for microbiome-driven improvements. The University of Sheffield's £8 million study, led by Professor Katie Field, examines fungal diversity's role in nutrient exchange to boost food security and address climate change. Tools like AMFinder enable automatic quantification of mycorrhizal colonization using convolutional neural networks on stained root images, aiding high-throughput assessment in field studies.
Reading Guide
Where to Start
"Mycorrhizal Symbiosis" by Smith and Read (2008) serves as the foundational text, offering a comprehensive synthesis of symbiosis types, evolution, and functional dynamics suitable for initial understanding.
Key Papers Explained
Gardes and Bruns (1993) introduced ITS1-F and ITS4-B primers for specific mycorrhizae identification, building the molecular foundation that Schoch et al. (2012) expanded by validating the ITS region as a universal fungal barcode. Phillips and Hayman (1970) provided staining methods for visual assessment, complemented by Giovannetti and Mosse (1980) who quantified infection errors, while van der Heijden et al. (2007) linked these tools to ecosystem-level impacts on plant diversity. Smith and Read (2008) integrate these advances into a holistic view of symbiosis.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Recent preprints explore arbuscular mycorrhizal influences on maize zinc uptake under phosphorus variations and evolutionary ecology of mycorrhizae. The University of Sheffield's £8 million project investigates fungal diversity for nutrient exchange in food security. Partnerships like Professor Corradi with Micro-Tek develop AMF for carbon sequestration, alongside tools like AMFinder for high-throughput imaging.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | A Revised Medium for Rapid Growth and Bio Assays with Tobacco ... | 1962 | Physiologia Plantarum | 66.7K | ✕ |
| 2 | ITS primers with enhanced specificity for basidiomycetes ‐ app... | 1993 | Molecular Ecology | 10.1K | ✕ |
| 3 | Improved procedures for clearing roots and staining parasitic ... | 1970 | Transactions of the Br... | 8.3K | ✕ |
| 4 | Mycorrhizal Symbiosis | 2008 | Elsevier eBooks | 7.4K | ✕ |
| 5 | AN EVALUATION OF TECHNIQUES FOR MEASURING VESICULAR ARBUSCULAR... | 1980 | New Phytologist | 5.8K | ✓ |
| 6 | Nuclear ribosomal internal transcribed spacer (ITS) region as ... | 2012 | Proceedings of the Nat... | 4.9K | ✓ |
| 7 | The unseen majority: soil microbes as drivers of plant diversi... | 2007 | Ecology Letters | 4.8K | ✓ |
| 8 | Biochar effects on soil biota – A review | 2011 | Soil Biology and Bioch... | 4.7K | ✕ |
| 9 | FUNGuild: An open annotation tool for parsing fungal community... | 2015 | Fungal ecology | 4.2K | ✕ |
| 10 | Bergey's manual of systematic bacteriology | 1987 | Gene | 4.0K | ✓ |
In the News
Fully funded PhD position – Plant Mycorrhizal Interactions ...
selected. Early applications are strongly encouraged.
University of Sheffield leads £8 million study unlocking fungi's power for boosting food security and tackling climate change
The ten-year Royal Society Faraday Fellowship, awarded to Professor Katie Field from the University’s School of Biosciences, will investigate previously overlooked fungal diversity to reveal its cr...
Mycorrhizal allies: synergizing forest carbon and ...
# Review Mycorrhizal allies: synergizing forest carbon and multifunctional restoration
Roots of innovation: How fungi could shape a greener future
Professor Corradi and his students partnered with Micro-Tek, a leading agro-tech and forestry company, to translate scientific discoveries into practical applications for carbon sequestration. Thei...
Early inoculation with arbuscular mycorrhizal fungi shifts ...
prebiotics in sustaining inoculant efficacy. This study provides mechanistic insight into how nursery-stage microbial interventions can shape rhizosphere functionality, offering promising strategie...
Code & Tools
The Automatic Mycorrhiza Finder (AMFinder) allows for high-throughput computer vision-based identification and quantification of AM fungal colonisa...
## Repository files navigation # Arbuscular-mycorrhizal-fungal-interactions
This repository contains code for running the carbon-nitrogen version of the "Carbon Organisms Rhizosphere and Protection in the Soil Environment" ...
Python for Mycorrhizal Symbiosis analysis (PyMS) is a graphical user interface-based program to visualize quantitative analysis of mycorrhizal fung...
# Search code, repositories, users, issues, pull requests... Search Clear Search syntax tips # Provide feedback We read every piece of feedba...
Recent Preprints
New Phytologist Journals - Wiley
## Browse Articles - Most Recent - Most Cited - Most Read Open access **Maize zinc uptake is influenced by arbuscular mycorrhizal symbiosis under various soil phosphorus availabilities**
Nature Plants
### Behind the Paper: Mycorrhizae and Tree Diversity Tree species richness depends on climate, soil, and biotic factors. Mycorrhizal fungi, key tree mutualists, influence nutrient cycles and soil...
Mycorrhizal symbiosis: Evolution, ecology, and functional dynamics in plant-fungal interactions
Mycorrhiza refers to the mutually beneficial relationship between fungi and plant roots, which plays a crucial role in nutrient cycling, plant growth, and maintaining ecosystem balance. This revie...
The catalytic effect of mycorrhizal initial planting on ...
growth of later successional species. An exceptionally promising technique entails the application of soil microbial inoculation, specifically targeting arbuscular mycorrhizal fungi (AMF) (Teder...
(PDF) Ecology of Mycorrhizae: A Conceptual Framework ...
Key Wordsmycorrhizae, ecology, complexity, stoichiometry, diversity ■AbstractMycorrhizae regulate elementaland energyflowsin terrestrialecosys- tems.Weunderstandmuchofhowmycorrhizaework,butintegra...
Latest Developments
Recent research in 2025 and early 2026 highlights that mycorrhizal fungi continue to play a crucial role in plant nutrient absorption, soil health, and plant community dynamics, with studies exploring their functions across various scales and ecological contexts, including their influence on soil organic matter, plant stress resistance, and coexistence through niche differentiation (Springer, 2025, Nature Communications, 2025, Nature Ecology & Evolution, 2024, Wiley, 2025).
Sources
Frequently Asked Questions
What are ITS primers used for in mycorrhizal research?
ITS1-F and ITS4-B primers, designed by Gardes and Bruns (1993), provide enhanced specificity for basidiomycetes and are applied to identify mycorrhizae and rusts. These primers target the internal transcribed spacer region in the nuclear ribosomal repeat unit. They enable accurate fungal identification in molecular ecology studies.
How is vesicular-arbuscular mycorrhizal infection assessed in roots?
Phillips and Hayman (1970) improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid infection assessment. Giovannetti and Mosse (1980) evaluated techniques for measuring infection, calculating standard errors from stained root samples. These methods support quantitative analysis in symbiosis studies.
What role do soil microbes play in plant diversity?
Van der Heijden et al. (2007) showed that soil microbes, including mycorrhizal fungi, drive plant diversity and productivity in terrestrial ecosystems. They comprise a large portion of soil's genetic diversity and influence ecosystem processes. Their impacts remain central to understanding biotic interactions.
What is the ITS region as a DNA barcode for fungi?
Schoch et al. (2012) established the nuclear ribosomal internal transcribed spacer (ITS) region as a universal DNA barcode marker for fungi. Six DNA regions were evaluated, excluding mitochondrial cytochrome c oxidase for poor fungal performance. This marker supports multilaboratory fungal identification efforts.
How does biochar affect soil biota including mycorrhizae?
Lehmann et al. (2011) reviewed biochar effects on soil biota, noting influences on microbial communities that interact with mycorrhizal fungi. Biochar alters soil environments affecting nutrient cycling and symbiosis. These changes impact ecosystem functioning involving plant-fungal interactions.
What tools exist for analyzing mycorrhizal colonization data?
PyMS-plot provides a graphical user interface for plotting and statistical analysis of mycorrhizal colonization data. AMFinder uses convolutional neural networks for automatic identification and quantification of arbuscular mycorrhizal fungal structures on ink-stained root images. CORPSE-N models plant-mycorrhizal-soil interactions including carbon-nitrogen dynamics.
Open Research Questions
- ? How do different mycorrhizal types shape global tree diversity patterns across climate and soil gradients?
- ? What mechanisms underlie the catalytic effect of initial mycorrhizal planting on successional species growth?
- ? How can multiple evolutionary events and mechanisms be integrated into a unified ecological framework for mycorrhizae?
- ? In what ways does arbuscular mycorrhizal symbiosis modulate maize zinc uptake under low phosphorus conditions?
- ? How do nursery-stage mycorrhizal inoculations with prebiotics sustain long-term rhizosphere functionality?
Recent Trends
Preprints from the last six months highlight arbuscular mycorrhizal symbiosis in maize zinc uptake across phosphorus availabilities and its catalytic role in successional plant growth via soil inoculation.
News covers £8 million funding at University of Sheffield for fungal nutrient exchange studies and Micro-Tek collaborations for AMF-based carbon sequestration.
Tools like AMFinder and CORPSE-N advance computational modeling of colonization and soil interactions.
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