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Arbuscular mycorrhizal (AM) fungal symbiotic structures are similarly devised in distantly related plant clades. (a) Marchantia palacea thalloid cell and (b) maize cortical root cell colonized with the AM fungus Rhizophagus irregularis highlighting the fundamental conservation of symbiotic traits across land plants. WGA‐Alexa Fluor 488 staining. Bars, 20 μm.
