Pollen tubes, SEM

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Pollen tubes, SEM

Pollen tubes. Coloured scanning electron micrograph (SEM) of pollen tubes (orange) on the pistil of a prairie gentian flower (Gentiana sp.). Pollen contains the male sex cells of a flowering plant. Once the grains land on the pistil (female parts) of a flower, the pollen grains form tubes that burrow down through the stigma (tip) and style (shaft) of the pistil to reach the ovule, which contains the ovum, the female sex cell. This is fertilised, forming a seed

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

Media ID 6288561

© SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY

False Colour Grain Grains Pistil Pollen Tube Pollinating Tubes False Coloured

EDITORS COMMENTS
This print showcases the intricate beauty of pollen tubes on the pistil of a prairie gentian flower. The coloured scanning electron micrograph (SEM) captures the vibrant orange hue of these microscopic structures, which play a crucial role in plant reproduction. Pollen grains, containing the male sex cells, land on the pistil's stigma and begin their remarkable journey. As if guided by nature's compass, they form delicate tubes that burrow through the stigma and style towards the ovule. This tiny ovule cradles the female sex cell known as an ovum. The image offers a glimpse into this fascinating process of fertilization. Once reached, the ovum is fertilized by pollen, resulting in seed formation. It is through this intricate dance between male and female reproductive cells that new life begins to take shape within plants. Beyond its scientific significance, this photograph serves as a reminder of nature's awe-inspiring complexity and resilience. The false-coloured SEM image allows us to appreciate every minute detail with clarity - from each individual grain to the network of tubes interweaving across the pistil. In essence, this stunning botanical portrait encapsulates both artistry and science; it invites us to marvel at nature's ingenuity while deepening our understanding of plant biology and pollination processes.

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