Limited Independent Growth of a Vesicular–arbuscular Mycorrhizal Fungus in Vitro

S ummary The hyphae developing from germinating resting spores of the vesicular‐arbuscular mycorrhizal fungus Glomus caledonius remain viable and can continue to grow after they have been detached from their parent spores. This new growth is at least as extensive as that present at the time when the spore was detached and is dependent on nutrients in the medium.