P. anserina mycelia were grown on glass slides with a central depression filled with CM agar and incubated for 1 d at 27°C and constant light. Hyphae were visualized and documented using a fluorescence microscope (DM LB/11888011, Leica, Wetzlar, Germany) equipped with the appropriate excitation and emission filters. Light sheet-based fluorescence microscopy (LSFM) and quantification of autophagosomes was performed as described previously.12 (link)