brown fungi or mold contaminate on agar plate (petri dish). fungi or mold contamination. fungi or mold grow on yeast

agar antibiotics assay background bacteria biology biotechnology brown close closeup colonies color contaminate contamination culture dextrose dish experiment extract fungi fungus genetics growth indoors investigation isolated laboratory macro medical medicine medium microbial microbiology microorganism mold molecular mould peptone petri plate produce research science strain study yeast