METABOLISM, GROWTH AND DEVELOPMENT OF PLANTS UNDER THE INFLUENCE OF HIGH TEMPERATURES

Аннотация

Resistance to high temperatures in many cases depends on the period of exposure and its absolute value. Most agricultural crops begin to suffer when the ambient air temperature reaches 35-40 °C. At this and higher temperatures, a number of physiological processes occurring in the plant cease, and when it approaches 50 °C, the cell cytoplasm liquefies and dies. An increase in temperature above the optimum temperature for a plant leads to partial or complete denaturation of proteins in the cell. This leads to the destruction of the protein-lipid complex of the plasmolemma and a negative effect on the functioning of other membranes in the cell.