Fig. 7
Micrographs of Polydomus karssenii. a, b Isolate growing on PDA, top view (a) and bottom view (b). c, d Fungal growth and formation of coiling hyphae. e, f Hyphal anastomosis. g, h Formation of pigmented hyphal vesicle-like structures. i–n Fungal growth and formation of moniliform hyphal cells (j, k) and chlamydospore-like structures (l–n). o–r Formation of highly melanised microsclerotia structures, in culture media (o–q), on wheat straw (r). A, B, C, F: from PDA; I, K, L, M: from PDA1/3; J: from PDA 1/6; E, O, P, Q: from CaCO3; G, H: from CZA; N: from MEA 1%. Bars = 1 cm (a, b), 200 µm (i, r), 50 µm (e, j, m, o, q), 30 µm (c, g, k, n, p), 20 µm (d, h, l), 10 µm (f)