Over short distances, substances can be transported through mycelial networks on a network of microtubules – dynamic filaments of protein that behave like a cross between scaffolding and escalators. Transport using microtubule ‘motors’ is energetically costly, however, and over larger distances the contents of hyphae travel on a river of cellular fluid. Both approaches allow rapid transport across mycelial networks. Efficient transport allows different parts of a mycelial network to engage in different activities. When the English country house Haddon Hall was being renovated, a fruiting body
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