The Influence of Cu and Co Nanoparticles on Growth Characteristics and Biochemical Structure of Mentha Longifolia in Vitro

The aim of the given work was to investigate the influence of copper and cobalt nanoparticles on clonal microreproduction of Mentha longifolia plants received by method of isolated cells and tissues culture. Copper and cobalt nanoparticles were used in the form of colloidal solutions of high viscosity (gels). As object of research were Mentha longifoliа plants. During experiments the optimum concentration of copper (0,5 mg/l) and cobalt (0,8 mg/l) nanoparticles colloidal solutions have been defined. These solutions were added in Murasige and Skug nutrient medium and have led to increase of microplant height and growth index on 45-48,4 %, the quantity of internodes on 29,4-33,9 % and quantity of shoots on 55,6-66,2 %, reproduction coefficient on 30-40 %.