Macro-photograph of mould on a slice of bread. Spores are abundant in the air and will readily infect a favourable medium such as damp bread. They germinate and produce an extensive network of thread-like hyphae which absorb nourishment for growth. Each mass of hyphae,called a mycelium,soon generates aerial branches called sporangio- phores which contain fruiting bodies responsible for the characteristic colour of the colony; green for Penicillium,blue,green or yellow for Aspergillus and black for the 'pin moulds' of Mucor & Rhizopus nigricans. The fruiting bodies,called sporangia,eventually rupture & the mature spores within are carried away by air movements | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Moulds, Sidney |
Taille de l’image : | 3543 px × 2600 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |