Vegetable poison makes the mouse out of the consumer plant seeds in their distribution


15/06/2012

University of Utah, USA and Israel Institute of Technology, Technion, conducted the study. Spiny mouse from Israel’s Negev desert, ate berries of a plant called mignonette. After a while, she spit the seeds of this plant in your paws and quickly buried some of the land. If she chewed the seeds along with the fruit pulp in her body would get the toxins. Thus, the plant transformed mouse from animals eat the seeds in animal distribution of seeds, which helps the plant to be played. "It’s amazing how a little mouse can hold, the chemical composition of fruit on the presence of toxins," says professor of biology at the University of Utah, Denise Dearing. Goes unseen battle between plants and animals. In this case, the plants make the animals to spread their seeds.

This is the first known case within a single species. In previous research in this area, were involved chili and two different classes of animals. Chili keeps mammals from eating their seeds because mammals can feel pain from capsaicin component. Birds also do not feel a burning sensation of the chilli seeds. They do not crush them and eat whole. Thus, they are good distributors of seeds chili. Researchers watched two other species of animals. For another type of mouse and barbed pushistohvostoy for sand eels. These animals spread the seeds of mignonette.

This plant grows in countries such as Egypt, Libya, Ethiopia, Sudan, Israel. He has a narrow prickly leaves and a central stalk consists of a yellow-green color. Plant produces black berries. In each berry about 20 seeds. The plant and its berries are eaten more often than camels, mountain goats, rodents, lizards and birds. Researchers say that this plant plays a key role in the extreme conditions of the desert, because it attracts the attention of the animals. Mustard oil, which produces mignonette is activated at a time when the animal is eating the berries, chew the seeds. Enzymes seed activate toxic substances.

Barbed mouse derived from rodent family that are users of the seeds. The researchers were surprised to find that the animal did not eat the seeds, though eating the flesh. Some of them will eat the seeds of this fruit several hours later after the pulp is digested. During the experiment, when the mice were in the cells, some of them are laid seeds and leaving them at rest for several hours and then returned to all of the seeds and swallowed. But scientists are not sure what they are doing so in nature. In another part of the study, the researchers left sweet mignonette berries in Petri dishes in the laboratory, in rocky crevices and under bushes mignonette. There was also a video. As a result, it was found that mice spread the seeds in a suitable habitat for them.

Original (in English): Phys.org


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