Pollen grains of Scots Pine tree

Pollen grains of Scots Pine tree

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Credit: POWER AND SYRED/SCIENCE PHOTO LIBRARY

Caption: Pine pollen. Coloured scanning electron micrograph (SEM) of Scots Pine (Pinus sylvestris) pollen grains. Each pollen grain consists of a base (coloured brown) with two air-filled, wing-like bladders (coloured green), which are extensions of the pollen grain's wall. These wings help the wind- dispersed pollen to float on air. The pollen is produced by male pine cones high in the tree, and may have to reach female cones a great distance away. Wind-dispersed pollen is made in massive quantities. Magnification: x2010 at 10x8 inch size.

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Keywords: botany, coloured sem, nature, pine, pine pollen, pinus sylvestris, plant, plants, pollen, pollination, reproduction, reproductive, type, wind, wind dispersed, winged

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