Pollinated flower pistil, SEM

Pollinated flower pistil, SEM

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Credit: SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY

Caption: 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.

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Keywords: anatomy, botany, carpel, coloured, female, field pennycress, grain, grains, nature, pistil, plant, plants, pollen, pollination, reproduction, reproductive, scanning electron micrograph, sem, stigma, structure, structures, thlaspi arvense, tip

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