Agar work is where mycology actually gets precise. It uses a nutrient-rich gel (usually agar-agar, malt extract, and water) poured into petri dishes as a sterile surface for growing fungal cultures. Why bother? Because it lets you isolate a single strain from spores or tissue, then watch mycelium spread cleanly, without grain or substrate muddying the picture. Contamination shows up fast here, often days before it would on grain. Think of it as a testing ground rather than a growing medium: you … read more