Fig. 1From: Molecular diversity and spore density of indigenous arbuscular mycorrhizal fungi in acid sulfate soil in ThailandThe indigenous spores of AM fungi collected from ASS. a Hyphal attachment spore, b no hyphal spore, c, d spore layer. : Scale bars (a, b) 100 μm, (c, d) 20 μm. H hyphae, 1L first spore layer, 2L second spore layer, 3L third spore layerBack to article page