Fig. 2

Confocal observation of yellow pigments production in strain RUT-C30 and JNTR5 at Ex/Em = 405/415–497 nm and 488/498–563 nm. a Confocal microscope images of spores of strain RUT-C30 and JNTR5. b Confocal microscope images of hyphae of strain RUT-C30 and JNTR5. Zoom factor = 2.5, frame averaging = 3. The area marked with the red square in A was the enlarged images for the spores of RUT-C30 and JNTR5, respectively. The samples were obtained by cultivating RUT-C30 and JNTR5 at 28 °C for 72 h with glucose as carbon source