Pollinated flower pistil. Coloured scanning electron micrograph (SEM) of pollen (round,orange) on the stigmas (yellow) of a field pennycress (Thlaspi arvense) flower pistil. The pistil is the female reproductive part of the flower. It can be divided into several carpels with a stigma at their tips. The stigma is where pollen lands during pollination. The pollen grains are male gametes (reproductive cells) that can fertilise a female gamete to produce a seed. This requires the male gamete to travel down the style (the structure that supports the stigma) to the ovary at the base of the pistil. Magnification: x33 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nishinaga, Susumu |
Taille de l’image : | 4703 px × 3718 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |