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Table 2 Macro- and micro-features of fungi isolates from cocoyam corm (Colocasia esculenta)

From: Antifungal effect of aqueous and ethanolic extracts of neem leaves, stem bark and seeds on fungal rot diseases of yam and cocoyam

S/no Isolates Colony characteristics Microscopy
1. Aspergillus niger Growth on PDA is rapid and fast. Powdery black colour almost covering the plates after 72 h Non-septate conidiophores arising from thick-walled foot cells. Each conidiophores ends in a terminal enlarged spherical swellings. Conidia borne by phialides arising from a terminal swelling on the conidiophores
2. Aspergillus oryzae Growth on PDA is rapid and fast. Powdery brown colour almost covering the plates after 72 h Non-septate conidiophores arising from thick-walled foot cells. Each conidiophores ends in a terminal enlarged spherical swellings. Conidia borne by phialides arising from a terminal swelling on the conidiophores
3. Rhizopus stolonifera Rapid and fast growth of about 36 mm after 24 h which soon spread and cover the plates. Growth appear as black pin-head, similar to cotton wool (white in colour) Mycelium of non-septate hyphae of large diameter. The sporangiophore bears a terminal black spherical sporangium. The sporangiophores are erect and may be branched or unbranched each bearing a single globose sporangium