Germination of pollen of Goosegrass

Germination of pollen of Goosegrass

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Caption: False colour scanning electron micrograph showing the germination of two pollen grains on the surface of the stigma from the flower of goosegrass or cleavers, Galium aparine. The pollen grains, which contain the male gametes, are transferred to the flower by insects. A pollen tube is seen growing out of one of these grains; this will travel through the stigma towards the ovary. The male nuclei travel down this tube, fertilize the ovules and a seed is formed. Magnification: X 286 at 35mm size.

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Keywords: botany, cleavers, galium aparine, goosegrass, nature, plant, plants, pollen, reproduction, reproductive, stigma, type

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