False colour scanning electron micrograph of tightly packed spores in a fragmenting sporangium of the bread mould,Rhizopus stolonifer. Spores circulate freely in the air. When they alight on a favourable medium,they germinate a network of hyphae (threads). Their function is to absorb food for growth & for spore production. Rhizopus produces stolons,or aerial hyphae,which on contact with a medium grow rhizoids or "rootlets". They anchor the fungus & absorb some water. Spores develop in saclike bodies,or sporangia. The wall fragments (white bits) under pressure from the maturing spores,releasing them for dispersal. Magnification: X 570 at 35mm size. Original is bw print b250/356 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Burgess, Dr. Jeremy |
Bildgröße: | 3543 px × 5098 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |