Pollen grains of pea flower

Pollen grains of pea flower

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Caption: False-colour scanning electron micrograph of pollen from the pea plant, Pisum sativum. The pollen is elongated with three furrows, each containing a germinating pore at mid-region (irregularity in furrow). The pea is self pollinating, which means that the pollen passes from the anther (male) to the stigma (female) of the same flower. If received, a pollen tube emerges from a germinating pore & grows down towards the ovaries. The tube conveys the male gametes (sperm) to the ovum (egg) where the sperm is released to fuse & fertilize the egg. Some grass & tree pollen may cause hayfever. Magnification: x250 at 6.4.5cm size.

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Keywords: botany, nature, pea, pisum sativum, plant, plants, pollen, reproduction, reproductive, self pollinating plant, type

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