Mycorrhizae Mechanism
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A mycorrhiza is a mutualistic association between fungal hyphae and plant roots, trading fungal minerals for the plant's photosynthetic sugars.
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Ectomycorrhizae sheathe roots with a hyphal mantle, while endomycorrhizae, formed by Glomeromycota, grow branched structures inside root cells.
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Most vascular plants depend on a mycorrhizal partner for normal growth — this mutualism is closer to the rule than the exception.