Why do mycorrhizal fungi help trees grow better?
Quick Answer
Mycorrhizal fungi extend the tree’s root system and improve access to water and nutrients, especially phosphorus and nitrogen. In return, the tree supplies sugars made by photosynthesis.
The Full Story
Mycorrhizae are mutualistic partnerships between fungi and plant roots. The fungal threads, or hyphae, spread through the soil far beyond the reach of roots alone, increasing the surface area available for absorption. This makes it easier for trees to obtain scarce nutrients such as phosphorus and nitrogen, and sometimes water during dry periods. In exchange, the fungi receive carbohydrates produced by the tree. These partnerships are ancient and widespread; many forests depend on them for healthy growth and nutrient cycling.
Key Facts
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"The hidden fungal network helping forests survive"
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