Marigold pollen,SEM

Numéro d’image : 12968684
Marigold pollen,SEM
Marigold pollen. Coloured scanning electron micrograph (SEM) of pollen grains from a marigold flower. Calendula officinalis is from the genus Tagetes a mixture of annual and perennial mostly herbaceous plants in the sunflower family (Asteraceae). Pollen grains are the male sex cells of a flowering plant. Their characteristic surface is used by botanists to recognise and classify plants. Pollen in plants is used for transferring male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination,this process takes place from the anther of a flower to the stigma of the same flower. Magnification x 500 at 10cm wide.
Licence : Libre de droits
Crédit: Science Photo Library / Gschmeissner, Steve
Model Release : Non requis
Restrictions : -

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