Fig. 1

Bright-field (a1–c2) and fluorescent microscopy (a3–c3) images of M. circinelloides (a), U. isabellina (b) and P. glabrum (c). Images (a1–c1) show fungal hyphae before or at the beginning of lipogenesis (day 1–2) while images (a2–c3) were captured from hyphae filled with distinct lipid bodies (day 3–6)