Elemental Composition and Content of Flavonols of <i>Pentaphylloides fruticosa</i> (L) O. Schwarz in Сonnection with Age of Plants
The elemental composition and the content of flavonols of Pentaphylloides fruticosa (L) O. Schwarz of the Mountainous Altai are investigated. Some distinctions in the content of elements and flavonols in P. fruticosa plants of different age conditions corresponding to two development periods, pregenerative (immature and virginal plants) and generative (young, middle-aged and oil generative plants), are discovered. The maximal contents of the majority of elements falls to virgin and old generative states. The greatest amount of flavonols, in particular quercetin, in the leaves of P. fruticosa corresponds to the young generative state. This research also shows a fairly strong correlation between Mn and total flavonols (r = 0.91), Mn and kaempferol (r = - 0.75), Zn and total flavonols (r = 0.99), Zn and kaempferol (r = - 0.90), Mo and quercetin (r = 0.78), Se and quercetin (r = 0.70).