bladder-like trap

Bladder-like traps can be found in some insectivorous plants that grow aquatic or on wet soils. In Utricularia – Bladderwort, these are specialized leaves which form few millimetres large vesicular locules in which a negative pressure is produced. When activated, trigger hairs open and close the lid of the bladder-like trap abruptly. Thereby, the negative pressure sucks the prey into the bladder. The prey is subsequently digested enzymatically.