TY  - EJOU
AU  - Perfileva, Alla I. 
AU  - Krutovsky, Konstantin V. 

TI  - Effect of Selenium, Copper and Manganese Nanocomposites in Polysaccharide Matrices on the Content of Photosynthetic Pigments in Potato Leaf Tissues
T2  - Phyton-International Journal of Experimental Botany

PY  - 
VL  - 
IS  - 
SN  - 1851-5657

AB  - The article presents the study of the effect of nanocomposites (NCs) based on selenium (Se), copper (Cu), and manganese (Mn) nanoparticles (NPs) embedded in a matrix of natural polysaccharides—arabinogalactan (AG), carrageenan (CAR), and starch (ST)—on the content of chlorophylls (Chls) and carotenoids in potato tissues <i>in vitro</i>. Potatoes were grown for 28 days on Murashige-Skoog (MS) medium with the addition of a NC, then pigments were isolated from leaf tissues, and their content was determined spectrophotometrically. Both a stimulating effect and an inhibitory effect of different NCs on the pigment content were found. Se and Cu NCs in the AG matrices (Se/AG and Cu/AG NCs) increased the Chl content both in the leaf tissues of healthy potato plants and plants infected with the phytopathogenic bacterium <i>Clavibacter sepedonicus</i> (<i>Cms</i>). Mn NCs increased the content of carotenoids and Chls in potatoes infected with <i>Cms</i>. A decrease in the pigment content was detected when growing potatoes on a medium with the addition of Cu NC based on a ST matrix (Cu/ST NC), which is probably due to the high content of NPs in this NC (20%). It was concluded that NCs based on an AG matrix are capable of exerting a stimulating effect on the content of potato pigments, which can be used to increase the yield of this crop.
KW  - <i>Clavibacter sepedonicus</i>; copper; manganese; nanocomposites; nanoparticles; potato; selenium

DO  - 10.32604/phyton.2026.078352