Mycorrhizal Fungi and Plant Interactions

Mycorrhizal fungi form intimate partnerships with the roots of most land plants, exchanging soil-derived nutrients like phosphorus and nitrogen for plant-produced sugars in a symbiosis that underpins the health of nearly every terrestrial ecosystem. Researchers study how different fungal species vary in their effectiveness as partners, how they structure communities in the soil alongside bacteria and other organisms, and how these networks collectively regulate nutrient cycling at scales ranging from a single forest stand to the global carbon budget. Advances in DNA barcoding have revealed that fungal diversity in soils is far greater than morphology alone ever suggested, raising fresh questions about which species actually matter for plant growth and under what conditions. A central open challenge is understanding how agricultural practices, climate shifts, and habitat fragmentation disrupt these below-ground communities and whether they can be managed or restored to support crop productivity and ecosystem resilience.

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Keywords

Mycorrhizal FungiFungal DiversityPlant InteractionsSoil BiotaSymbiotic RelationshipsEcosystem Functioning