Pollen grain of Sycamore tree

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Pollen grain of Sycamore tree

Pollen grain. Coloured scanning electron micrograph (SEM) of pollen grains of the Sycamore tree, Acer pseudoplatanus. They are slightly triangularly shaped with coat ornamentation. When a Sycamore pollen grain (which contains the male gametes) lands on the stigma of a Sycamore flower, it germinates. A pollen tube will grow out of the pollen grain into the stigma, and down this tube the male nuclei" will travel towards the ovaries. When an ovule in the ovary is then fertilized, a seed is formed. Magnification: x1, 100 at 5x7cm size. x2840 at 8x6"

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 9193985

© POWER AND SYRED/SCIENCE PHOTO LIBRARY

Plants Pollen Reproduction Reproductive

EDITORS COMMENTS
This print showcases the intricate beauty of a pollen grain from the Sycamore tree, Acer pseudoplatanus. Under the lens of a scanning electron microscope (SEM), these triangularly shaped grains reveal their stunning coat ornamentation. Each grain holds within it the potential for new life, as they contain the male gametes necessary for reproduction. When a Sycamore pollen grain finds its way to the stigma of a Sycamore flower, an extraordinary process begins. The grain germinates and sends out a delicate pollen tube that grows into the stigma and travels towards the ovaries. Within this tube, male nuclei embark on their journey to fertilize an awaiting ovule in one of the ovaries. The result of successful fertilization is nothing short of miraculous - a seed is formed. This tiny seed carries within it all the genetic information needed to grow into another magnificent Sycamore tree. At magnifications reaching x1,100 at 5x7cm size or even x2,840 at 8x6", this image allows us to appreciate nature's incredible attention to detail on even its tiniest scales. It serves as a reminder that every living organism plays its part in perpetuating life and maintaining our planet's rich biodiversity. This awe-inspiring photograph comes courtesy of Science Photo Library and offers us an intimate glimpse into one aspect of plant reproduction – an essential process that sustains life on Earth.

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