Particular 1,2,3-triazole- and 1,2,4-triazole-based compounds can be used as fluorescent probes. The compounds can optionally be substituted with one or two fluorine atoms. The compounds are effective as specific endoplasmatic reticulum (ER)-trackers for live cell imaging in a fungal cell, such as a pathogenic yeast. Compositions including the fluorescent probes can be used in methods for tracking the endoplasmic reticulum in a fungal cell.