The effect of silver nitrate on the biochemical parameters of Rosa canina L.

Dietary supplements play a crucial role in providing the human body with phytochemicals that may be insufficiently represented in the daily diet. The dog rose (Rosa canina L.) exhibits anti-inflammatory, antioxidant, and antidiabetic properties due to its wide range of biologically active compounds, including anti-inflammatory galactolipid, vitamin C, phenols, lycopene, lutein, zeaxanthin, and other carotenoids. The high interest in the potential health benefits of Rosa canina has driven research and the development of technologies aimed at enhancing the content of biologically active compounds in this plant. It is well known that the activation of secondary metabolic pathways by elicitors and various stress factors can stimulate the production of biologically active substances in plants. This study investigates the effect of silver nitrate on several biochemical parameters of Rosa canina L. under conditions of microclonal propagation. The results demonstrated that the concentrations of chlorophylls a and b in the leaves of Rosa canina decreased under the influence of silver nitrate at concentrations of 1, 10, and 50 mg/L. The carotenoid content in the plant leaves remained unchanged under silver nitrate treatment, while the anthocyanin content increased. However, the levels of polyphenolic compounds and flavonoids decreased in plants exposed to all tested concentrations of silver nitrate.