Mycorrhizal Fungi
Mycorrhizal Fungi - Related Videos
08:58
Filamentous Fungi
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Bradley Schmitz Fungi are heterotrophic eukaryotic organisms, and with the exception of yeasts, are aerobic. They are abundant in surface soils and are important for their role in nutrient cycling and the decomposition of organic matter and organic contaminants. White rot fungi (phanerochaete chryosporium) for example, (Figure 1) are known to degrade aromatics. Figure 1. White rot on...
01:29
Overview of Fungi
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2025
Fungi are a diverse group of eukaryotes more closely related to animals than other eukaryotes. Fungal cell walls comprise chitin, a polysaccharide that provides structural strength, and glucans, which contribute to flexibility and integrity. Other polysaccharides, such as mannans and galactosans, may supplement or replace chitin in some fungi. These adaptations, along with their preference for acidic environments and tolerance for high osmotic pressure, enable fungi to thrive in various...
07:58
Use of Image Cytometry for Quantification of Pathogenic Fungi in Association with Host Cells
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Cited by 1 •
2013
Here, we demonstrate how image cytometry can be used for quantification of pathogenic fungi in association with host cells in culture. This technique can be used as an alternative to CFU enumeration.
12:33
Determination of Biofilm Initiation on Virus-infected Cells by Bacteria and Fungi
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Cited by 3 •
2016
A method is described herein for the determination of inter-Kingdom association and competition (bacterial and fungal) for adherence to virus-infected HeLa cell monolayers. This protocol can be extended to multiple combinations of prokaryotes, eukaryotes, and viruses.
11:24
Rapid Deletion Production in Fungi via Agrobacterium Mediated Transformation of OSCAR Deletion Constructs
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Cited by 8 •
2017
Gene deletion mutants generated through homologous recombination are the gold standard for gene function studies. The OSCAR (One Step Construction of Agrobacterium-Recombination-ready-plasmids) method for rapid generation of deletion constructs is described. Agrobacterium mediated fungal transformation follows. Finally, a PCR based confirmation method of gene deletions in fungal transformants is presented.
FAQs
The key mechanism is spatial expansion: fungal hyphae grow outward from roots into surrounding soil, allowing the plant-fungus system to explore a larger soil volume than roots alone. This expanded reach improves access to water and mineral nutrients, with phosphorus identified as a particularly important resource. The result can be improved plant nutrition and growth.
Phosphorus is a central focus because mycorrhizal hyphae extend beyond the root system and help plants acquire this mineral from a broader region of soil. The association therefore links fungal growth in soil with plant nutrient status. In biology, this relationship provides a mechanism for understanding how belowground interactions can influence plant performance.
Carbon transfer sustains the partnership on the plant side of the exchange. Sugars produced through photosynthesis move from the host plant to its fungal partners, while the fungi contribute to resource acquisition through their soil-reaching hyphae. This reciprocal flow explains why the association can benefit both organisms rather than functioning as a one-sided nutrient service.
The association may improve a plant’s tolerance to environmental stress by strengthening access to water and mineral nutrients. That benefit follows from the expanded soil volume explored by fungal hyphae and the resulting improvement in plant resource acquisition. The potential outcome is greater plant resilience under unfavorable conditions, although the source material does not specify a separate stress-response pathway.
Mycorrhizal fungi affect more than individual plant nutrition. Their activity can influence soil structure and the surrounding microbial communities, placing the symbiosis within a wider belowground network. These effects make the fungi relevant to biological questions about how plant roots, soil properties, and microorganisms interact, rather than limiting their importance to nutrient transfer alone.
Researchers study mycorrhizal fungi to connect processes at several biological scales. At the plant level, they examine nutrition, growth, and environmental-stress tolerance; at ecosystem and management scales, the topic informs nutrient cycling, forest productivity, agricultural productivity, and sustainable crop-management strategies. This broad relevance makes the symbiosis useful in both ecological research and applied biology.
An investigation centered on these fungi can evaluate consequences for plant nutrition and growth while also considering water and mineral acquisition, soil structure, and microbial communities. Interpreting these outcomes together helps connect root-associated processes with broader ecosystem effects. Such a systems perspective is especially relevant when assessing productivity or sustainability in agricultural systems and forests.