Macrophotograph of leaves of the carnivorous plant Drosera rotundifolia,the sundew,showing the sticky fluid which forms drops at the tips of the tentacles. The tentacles are of two kinds: longer marginal ones & shorter inner ones. Insects,attracted by the droplets,become stuck to the tips of the longer tentacles,which bend over & bring the insect towards the shorter ones,forming a tight grip. Proteolytic enzymes secreted by the tentacles digest the insect,& the products are absorbed by the leaf. Drosera grows in a nitrogen-deficient environment (bogs),which it overcomes through a carnivorous diet | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Taille de l’image : | 3414 px × 5152 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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