Of NCAR scientists discovered that plants in a forest respond to stress by producing nuts in significant amounts to a form of aspirin.
Unlike humans, who are advised to take aspirin to decrease a temperature, plants and their ability to produce their own aspirin, leading to the formation of proteins that stimulate the biochemical defense system, says Thomas Karl, NCAR, which led study.
Our measurements show that significant amounts of chemicals can be detected in the atmosphere of the plant response to drought, inadequate temperatures, etc..
NCAR scientists found methyl salicylate in error. Special instruments were placed in a forest near Davis, California, to monitor volatile compounds of some plants. They are important because they can combine with industrial pollution emulsions, and can influence local climate.
When revised measurements found that levels of methyl salicylate rose dramatically when the plants have gone through a period of drought. Instruments mounted on towers about 30 m above the ground measured up to 0,025 mg of methyl salicylate, which increases to 0.09 m2 of forest every hour.
Methyl salicylate has two functions, one of which is to stimulate the plant defense system also may be a mechanism to communicate to neighboring plants, warning of danger.
Every year on April 22, debating issues of environmental pollution. Specific pollution and habitat destruction many plant and animal species are endangered.
Band e Amir, the first national park in Afghanistan
National Park consists of a series of six deep lakes separated natural dykes of rock rich in red travertine. This rock is found only in few places in the world.
Christmas tree, legend and history.
Christmas is close and each of us has already chosen a beautiful and richly tree to impodobii, because it is tradition or because we want to feel more Christmas atmosphere. What is really Christmas tree ...? We gathered a few lines from various books about Christmas and imparatasesc them with you.
Rice plants resistant to arsenic
Rice is the raw material supply for more than 80% of the world population, although production is declining in Bangladesh, India and parts of East and South Asia, due to toxic levels of arsenic in soil.
Types of forests
Classification depends mainly forests position, distance from equator, altitude and climate.
Tropical forests - all year round temperatures are high and precipitation. Tropical moist forests are found near the equator. In tropical forests there is a season of drought. Most trees have crown umbeliforma.