Investigation of the Chlorophyll’s State During Low Temperature Adaptation

Abstract

The reorganization of structure and metabolism of all cell compartments forms the basis of plant adaptation to different environmental factors (1). Changes in photosynthetic apparatus are also purposed to regain its methabolism balance and accompanied by changes in pigment system, biochemical composition and morfoanatomical structure of chloroplast and leafs (2). Thus, strong wind, high salinity, water deficit, temperature decrease and other factors drop chlorophyll (Chl) accumulation, change composition of subunit of different Chl-protein complexes, leading to increase in monomer subunits by disintegration of less stable oligomer and dimer forms (3). Apparently, the effectiveness of photosynthetic apparatus depends on Chl-protein complexes stability and vulnerability of photosynthetic structure formation under all studied stress-situations (4). These changes are universal and define adaptation abilities of photosynthetic apparatus, that is why, these parameters, characterizing one, can be often used to assess the plant adaptation ability.