Various pollen grains
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Various pollen grains
Pollen grains. Computer-enhanced image of a Scanning Electron Micrograph (SEM) of several different types of pollen grain. The size, shape and surface texture of these pollen grains is unique in each plant species. The sculptured outer wall (or exine) of the grain plays a role in its dispersal by wind, water or insects. Pollen grains contain the male gametes of the plant which fertilize the female egg (or ovule) to form the plant seed. Pollen also causes allergies and hay fever. Magnification: approximately x1000 at 4.5x6cm size
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6288689
© PASIEKA/SCIENCE PHOTO LIBRARY
Assorted Grain Grains Hay Fever Pollen Pollen Grains Pollinosis Re Production Reproductive
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