Spores of bread mould, Rhizopus

Spores of bread mould, Rhizopus

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.

Caption: Scanning electron micrograph of tightly packed spores in a sporangium of Rhizopus stolonifer, the common bread mould. These spores develop in saclike bodies, or sporangia, until the walls split & fragment (white bits), releasing them for wind dispersal. Spores circulate freely in the air. When they alight on a favourable medium, they germinate a network of hyphae (threads), the function of which is to absorb food for growth & spore production. Rhizopus produces stolons, or aerial hyphae, which on contact with the medium grow rhizoids or "rootlets". They anchor the fungus & absorb some water. Magnification X1500 (at 10x8 size).

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

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