Changes in Profiles of Classes and of Individual Polyphenols in Leaves of Spiraea chamaedryfolia and Spiraea media along an Altitudinal Gradient

Plants in high-altitude habitats are exposed to severe environmental stressors, including extreme temperatures and irradiation, which can have wide-ranging effects on changes of secondary-metabolite profiles higher plants. Altitude-related variation levels polyphenols organs medicinal food plant species has not yet been investigated sufficiently. This study was focused quantitative classes individual biologically active phenolic compounds leaf extracts resource Spiraea chamaedryfolia media from the family Rosaceae coenopopulations Altai Mountains, along an altitudinal gradient. High-performance liquid chromatography revealed 22 polyphenolic S. leaves, with main being flavonols. Sixteen were found extracts, major ones flavonols a flavanone. Opposite responses altitude-associated growth conditions documented for some compounds. With increase altitude, concentrations chlorogenic acid flavanone leaves significantly increased, while cinnamic acid, astragalin, kaempferol diminished. A statistically significant positive correlation between altitude total phenolcarboxylic acids detected. In media, positively correlated avicularin, negatively hyperoside concentration.