close up single growing bread mold rhizopus on white background

background black boiled bread close closeup conidia contaminated decay food fungal fungus green growing harmful inedible infected isolated loaf macro magnification microorganism mildew mildewed mold moldiness moldy musty nobody one perishable poisonous rhizopus rotten rotting sci science single slice spoiled spore toxic unhealthy unhygienic white yellow zygomycota