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Unknown 14 = Fusarium solani complex
Direct microscopy (Lactophenol Cotton Blue Stain): Direct wet mount showing hyaline septate fungal hyphae.
Culture: Culture of Fusarium solani complex.
Microscopy: Microconidia of Fusarium solani complex are usually abundant, cylindrical to oval, 1- to 2-celled and formed from long lateral phialides.
Macroconidia Fusarium solani complex are formed after 4-7 days from short multi-branched conidiophores which may form sporodochia. They are 3- to 5-septate (usually 3-septate), fusiform, cylindrical, often moderately curved, with an indistinctly pedicellate foot cell and a short blunt apical cell.
Chlamydoconidia Fusarium solani complex are hyaline, globose, smooth- to rough-walled, borne singly or in pairs on short lateral hyphal branches, or they are intercalary.
Comment: The Fusarium solani complex contains at least 60 species and accounts for about 50% of human infections caused by fusaria. All are ubiquitous soil borne pathogens responsible for vascular wilts, rots, and damping-off diseases of a broad range of plants. A number of these fusaria, notably F. keratoplasticum, F. petroliphilum, F. lichenicola and F. solani are clinically important, causing localised or deeply invasive life threatening infections in humans and other animals.
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