Just four plants - wheat, rice, maize and soybeans - account for 60 percent food produced worldwide. In the face of catastrophic climate change, a larger diversification of cultivated plants is needed, says Prof Sayed Azam-Ali from the University of Nottingham, UK.
Why do seeds not germinate in the last hot summer day? How do they "know" they should still wait? This is one of the plant genes\' doing. It is being studied by researchers from the Institute of Biochemistry and Biophysics PAS. On the example of this gene they draw important conclusions about information processing in the cell.
It is difficult to conclusively state how the change of time affects human health; the results of the study are mutually exclusive - told PAP Dr. Dorota Wołyńczyk-Gmaj, psychiatrist, sleep disorders expert. However, since there are doubts in this matter, it is probably not worth the risk - she added.
Altruism among chimpanzees varies depending on status and sex, it is also an individual trait. These are the conclusions drawn from the two-year study of these apes - the closest evolutionary relatives of man - by psychologist Prof. Maciej Trojan from Nicolaus Copernicus University in Toruń.
How is it possible that life exists on Earth? And that from ordinary elements compounds have formed that can multiply and store information? Simulations on supercomputers help test the hypotheses that explain these phenomena - told PAP bioinformatics expert Prof. Jacek Błażewicz.
Mosquitoes - equipped with advanced smell detection system - can find the victim from a distance of several dozen meters. Although those living in Poland are mostly harmless, worldwide mosquitoes contribute to around 750,000 deaths each year. they spread malaria, dengue and yellow fever.
The largest lake in Mazovia - Lake Zdworskie, to which no water from natural sources flows - is drying. Similar problems exist in many areas of Poland. Researchers see the solution in restoring rivers to natural conditions and creating small retention tanks in cooperation with ... beavers.