DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of the black mould (Aspergillus brasiliensis) - fruiting structure and spores. Aspergillus brasiliensis is a newly described species which was in part created by the transfer of several existing Aspergillus niger strains to the new species A. brasiliensis . It can be distinguished from A. niger based on both phenotypic and genotypic features. The type strain was isolated from soil in Brazil. Aspergillus brasiliensis is a ubiquitous soil fungus. The conidiophore (fruiting structure) is the swollen end of a hyphae (the fungal vegetative structure) from which radiate numerous sterigmata (short lengths of narrow hyphae) ending in short chains of conidia (spores). Aspergillus species are common saprophytic moulds that grow in household dust, soil, and decaying vegetable matter, including stale food. Magnification: x67 when shortest axis printed at 25 millimetres.
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