Pollen dispersal. Wind dispersal of pollen from the lesser pond sedge (Carex acutiformis). Each pollen grain contains a male gamete,which fertilises the ovules (eggs),initiating the formation of plant seeds. Pollen is a major cause of hay fever (allergic rhinitis and pollenosis) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Harmer, Andy |
Taille de l’image : | 3127 px × 4562 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |