Predatory plants are considered as nature miracle. Upholstered in places with a lack of nutrients of soil, they have developed unique for flora survival strategy - ability to catch and "яюхфр=і" live extraction.
450 kinds of such plants concerning 6 families Are; they can be found out all over the world in the most different habitats. As these predatory plants eat basically small insects them still name insectivorous.
"-ѕт°шэёшъш" - traps
Such plants apply various dodges for zamanivanija extraction. Edges and internal walls lovchih leaves of some of them are painted in bright red colour while others allocate sugary substance. At sarratssnii (Sarra cenia) on a mouth kuvshinchika there are the long hairs directed downwards which is not allowing an insect to get out outside. There are two possible explanations why extraction does not take off from a trap: the stupefying substance containing in a sugary liquid and quickly lulling extraction, or a hanging lid which will disorient an insect.
Inside kuvshinchika pieces of iron allocate the enzymes accelerating dissolution of a flesh of an insect. But there are insects who can exist in such kuvshinchikov. Mosquito larvae Wyeomyia smitbii actually live in kuvshinchike purple sarratsenii (Sarracenia purpurea), while adult insects can fly and take off free therefrom. The spider Misumenops nepentbicola also often suits there the dwelling.
the Most known example of such trap is the Venus flycatcher (Dionaea muscipula). the Trap is formed on the sheet end, chereshok plays a loop role, and the sheet forms two shares bordered by teeth. On each of them there are the sensitive hairs putting in action a trap.
It occurs, when the insect will disturb one of hairs. But only at a contact of the second hair from the plant basis powerful enough electric impulse forcing a trap to slam arrives.
The Trap slams very quickly - within the one fifth fraction of a second. Coming the friend for the friend a teeth is closed leaky, and the small insect can even get out outside. Then the trap opens again not to spend a valuable digestive liquid for small, not so nutritious extraction. But if large extraction comes across, the trap is slowly closed within several hours while the victim will not be completely crushed.
Rosjanki (Drosera it Drosophyllum), zhirjanki (Phiguicula) and rosolisty (Byblis) use sticky substance. As soon as insects sit down on sheet, they stick in the sugary liquid allocated with special pediculate glands of leaves. Trying to be pulled out, the victim forces the next hairs to bend towards a movement source and as a result it appears even more strongly seized.
Sucking in traps
Puzyrchatki (Utricularia and Polypompbolyx) grow in ponds. They can or float freely, or start up roots. From their leaves the vials having an aperture, closing svobodnopodveshennyj the valve hang down. Special glands extort from a vial almost all water that the valve remained densely closed thanks to pressure of water outside. Then the sugary substance involving extraction and simultaneously strengthening valve is allocated. SHCHetinki direct extraction to the valve which instantly opens at a contact a victim of alarm hairs. Pressure forces the valve to open inside, and extraction together with water is sucked in in a vial. Further the valve is quickly closed, water is extorted outside, and digestion ulova begins.
On shoal, near to puzyrchatkoj, often find Genlisea - small freely floating and slightly pritoplennye sockets. Lovchie leaves of this plant have short chereshok, divided on two tubes leaving under water. On all length of tubes there passes a spiral cut, along an internal surface a number directed in hairs is which. The pieces of iron located at external edge, allocate sticky substance. Small water organisms go hairs in a trap, whence they cannot get out any more.