Life cycle of Rhizopus sexualis

Life cycle of Rhizopus sexualis

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Credit: BIOPHOTO ASSOCIATES/SCIENCE PHOTO LIBRARY

Caption: False-colour scanning electron micrograph of aerial hyphae of the mould Rhizopus sexualis. The sexual phase of the life cycle is initiated when there is directional growth of two hyphae towards one another (as here, at upper left). On contact the two hyphae fuse to produce gametangia (organs in which gametes are produced) which combine to form the zygosporangium, a precursor to the germ sporangium. The latter releases spores (sporangiospores) which germinate to produce more mycelium and sporangia. R. sexualis develops a fluffy mycelium of white hyphae on bread, fruit and other foods. Magnification: x145 at 35mm size.

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Keywords: bread, bread mould, eumycota, fungal, fungi, fungus, hyphae, mold, mould, mouldy, mycology, nature, naturemycology, rhizopus sexualis, scanning electron micrograph, sem

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