Nettle leaf gall,artwork. Three views of a leaf gall (red) on a stinging nettle leaf (Urtica dioica). The gall is caused by the parasitic larva of the nettle gall midge (Dasineura urticae). The larva is seen in the cross-section at bottom. The larva emits a chemical which stimulates growth and feeds on the juices and tissue produced inside the gall cavity. A slit in the top of the gall (red) provides an exit point | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4084 px × 5537 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |