Aspergillus nidulans hyphae and sexual spores, SEM

Aspergillus nidulans hyphae and sexual spores, SEM

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Credit: DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY

Caption: Coloured scanning electron micrograph (SEM) of Aspergillus nidulans hyphae and sexual spores. A. nidulans (also known as Emericella nidulans) is a filamentous fungus that is the only member of the genus Aspergillus that forms sexual spores through meiosis (seen here in this image as large spores). A. nidulans is also a homothallic fungus, meaning it can form asexual spores by producing conidiphores that bear chains of asexual spores. A. nidulans. has been an important research organism for studying eukaryotic cell biology and has a long history of use for the study of a wide range of subjects including basic genetic problems (recombination, DNA repair, mutation), cell cycle control and pathogenesis, as well as metabolism of other Aspergillus species. A. nidulans produces the toxin, sterigmatocysin, which may lead to food contamination. Magnification: x440 when shortest axis printed at 25 millimetres.

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