Cactus seed,SEM

Numéro d’image : 11539926
Cactus seed,SEM
Cactus seed. Coloured scanning electron micrograph (SEM) of a seed from a cactus flower (family Cactaceae). A seed contains an embryo (a fertilised ovule from which a new plant can grow),and a supply of food. The food is used either while the embryo grows within the developing seed,or during germination. Seed shapes and surface textures vary widely,affecting how they are dispersed from their parent plant. Seed dispersal methods include being carried by the wind,or water or on animal coats,or being eaten and deposited in animal droppings. Cactus seeds are usually dispersed in animal droppings. The cacti are succulent plants adapted to grow in arid areas like deserts. Magnification: x830 when printed 10 centimetres wide
Licence : Droits gérés
Crédit: Science Photo Library / Gschmeissner, Steve
Taille de l’image : 3600 px × 2706 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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