Antibacterial assayThe antibacterial activity of the fungal crude extracts was assessed in vitro using the agar well diffusion assay method described by Eze et al. (2019). The fungal extracts were dissolved in dimethyl sulphoxide (DMSO 100% v/v) to generate a working concentration of 1 mg/mL. Using sterile cotton swabs, standardized broth cultures of test bacterial isolates (Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa and Escherichia coli) were spread aseptically onto the surface of Mueller Hinton Agar (MHA) plates. All culture plates were allowed to dry for about 5 min and wells made using a sterile cork-borer (6 mm in diameter). These wells were respectively filled with 60 μL of the fungal extracts and control. After that, the plates were maintained at room temperature for 1 hour to allow the agents to diffuse into the agar medium before being incubated. The positive control was gentamicin (10 g/mL), while the negative control was DMSO (100 % v/v). After a 24-hour incubation period at 37 °C, the inhibition zone diameters (IZDs) were measured and values recorded.