Content of mangiferin and sum of xanthones in plants of some wild-growing and introduced <i>Hedysarum (Fabaceae) </i>species
Content of mangiferin and sum of xanthones in leaves of 7 species Hedysarum L. (H. alpinum L., H. flavescens Regel et Schmalh., H. austrosibiricum, H. neglectum Ledeb., H. theinum Krasnob., H. gmelinii Ledeb. and H. tschuense), growing on the forest-steppe zone of Western Siberia (Novosibirsk) and in natural populations Republic Altai and Northern Kazakhstan was studied. The greatest amount of mangiferin and the sum of xanthones was revealed in leaves of H. alpinum and H. flavescens (to 4.3 and 6.0 %). H. austrosibiricum, H. neglectum and H. theinum contained almost twice less than them, H. gmelinii - about 1.0 %, in leaves of H. tschuense xanthones were absent. Cultivated plants synthesize more xanthones, than wild-growing.