Biologists have found the gene responsible for the accelerated growth of plants
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Biologists from the US have found a gene responsible for the accelerated growth of plants in a warm and shaded environment – PIF7. Researchers believe that further study of it will help create plants that can produce good crops with a lack of light, notes in the journal Nature Communications.
Biologists at the Salk Institute for Biological Research set out to find out which parts of DNA and signaling molecules control how plants respond to heat and lack of light. They examined dense plantings of wild tobacco, tomatoes and Arabidopsis (a close relative of cabbage) and observed their response to crowding and high temperatures.
It turned out that crowding forced all plants to produce a lot of growth phytohormone – auxin. And high temperatures and lack of light led to the activation of the PIF7 gene. This gene is responsible for the production of the protein of the same name, which activates other DNA regions in the plant genome.
Scientists hope that their study will allow the creation of new plant varieties that are less sensitive to high temperatures and lack of light. This will increase yields in hot climates.
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