Development of Antimicrobial Nano-Selenium Biocomposite for Protecting Potatoes from Bacterial Phytopathogens

An antimicrobial composite—selenium nanoparticles encapsulated in a biogeneous matrix consisting of arabinogalactan from Larix sibirica —has been developed and characterized. The effect of a novel selenium-containing nanocomposite on bacterial phytopathogen Clavibacter michiganensis ssp. sepedonicus (inducing ring rot disease of potato) is studied. It is shown that the complex of arabinogalactan and nanoselenium has a bactericidal effect, and its application leads to the morphology changes of bacterial cells and their death after 24 h of incubation.