Antifungal Agents Article Aspergillus flavus Base Sequence Cell Wall Cell wall integrity DNA Primers Filamentous fungi Food Contamination Food Microbiology Fungal Proteins Gene Expression Gene Expression Regulation, Fungal Penicillium Penicillium chrysogenum Penicillium polonucum Real-Time Polymerase Chain Reaction Reverse Transcription Rho guanine nucleotide binding protein Rho1 gene Stress analysis antifungal agent cell wall computer model controlled study food contamination food control fungal cell wall fungal gene