Some aspects of flavonoid biosynthesis and accumulation in buckwheat plants

The buckwheat is a plant species with a high ability to produce secondary metabolites such as flavonoids. Together with rutin, the dominant flavonoid of the Fagopyrum Mill genus representatives (The Common buckwheat (F. esculentum Moench), the Tartary buckwheat (F. tataricum (L.) Gaertn.) and the Perennial buckwheat (F. cymosum Meissn.)), quercetin, vitexin, quercitrin, orientin, anthocyanides, phenolcarbonic acids and other compounds were found in buckwheat plants. Due to their considerable reactivity, flavonoids participate in the processes of photosynthesis, respiration, growth, reproduction and defence against different stresses. The purpose of this article is to overview the processes of flavonoid biosynthesis and accumulation during the growth and development stages of buckwheat plants under the influence of external factors regarding its species diversity. Flavonoids content and induction were examined in vitro culture.