Light micrograph of the fungus Exserohilum rostratum. The blue structures are macroconidia, the asexual reproductive spores of the fungus. Each chain of macroconidia grows on a specialised hypha (stalk) known as a conidiophore. This fungus is found in soil and is an opportunistic human pathogen, usually causing sinusitis. In 2012 it was the cause of an outbreak of fungal meningitis in the USA when a batch of corticosteroid injections were contaminated with the fungus.

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Photo credit: © CDC//Dr. Libero Ajello/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: -, anamorph, ascomycota, asexual, biological, biology, chain, coconidia, conidiophore, exserohilum, filamentous, fungal, fungi, fungus, hypha, hyphae, light, lm, macroconidia, meningitis, microbiological, microbiology, micrograph, microscopy, mycological, mycology, opportunistic, pathogen, pathogenic, reproductive, rostrata, rostratum, septate, setosphaeria, sinusitis, spore, spores, structure