Jasmine pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from the jasmine flower (Jasminum sp.). The grain has a highly sculptured outer wall (exine), which may assist in its dispersal by improving its adherence to pollinating insects. The characteristic surface of a pollen grain is used by botanists to recognise and classify plants. Each pollen grain contains a male gamete (reproductive cell) that is intended to fertilise an egg or ovule (female gamete), and initiate the formation of a seed for a new plant. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / EYE OF SCIENCE |
Taille de l’image : | 4000 px × 4000 px |
Model Release : | Non requis |
Property Release : | Non requis |
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