Fagopyrin and rutin concentration in seeds of common buckwheat plants treated with Se and I / Vsebnost fagopirina in rutina v semenih navadne ajde tretirane s selenom in jodom

Abstract

Fagopyrin and rutin concentration in seeds of common buckwheat plants treated with Se and IVery little data about impact of simultaneous addition of selenium and iodine on plants exists. Plants of common buckwheat Fagopyrum esculentum Moench. were grown outdoors and were foliarly treated at the beginning of the flowering with different forms of Se (selenite, selenate) and I (iodide, iodate) and their combinations. Plants were harvested and seeds were collected and grounded, and the concentrations of fagopyrin and rutin were determined. Nor Se, nor I, alone or their combination had an influence on the concentration of fagopyrin. Selenium, iodine and their combination affected the amount of rutin in common buckwheat grain.Key words: fagopyrin, rutin, common buckwheat, seeds, Se, I IZVLEČEK Vsebnost fagopirina in rutina v semenih navadne ajde tretirane s selenom in jodomZelo malo je znanega o sočasnem vplivu elementov selena in joda na rastline. Rastline navadne ajde (Fagopyrum esculentum Moench.) gojene na prostem, smo v začetku cvetenja tretirali z raztopinami selena (selenit, selenat) in joda (jodit, jodat) ter njihovimi kombinacijami. Zrnje tretiranih rastlin je bilo zmleto in izmerili smo koncentracije fagopirina in rutina. Na koncentracijo fagopirina v zrnju ni vplivalo niti tretiranje rastlin s selenom niti z jodom, pa tudi ne kombinacija obeh elementov. Na koncentracijo rutina v zrnju pa so značilno vplivala tako posamična tretiranja z raztopinami obeh elementov kot tudi kombinirano tretiranje.

Yield, Quality and Antioxidant Properties of Indian Mustard (Brassica juncea L.) in Response to Foliar Biofortification with Selenium and Iodine

“…Indeed, the increase of flavonoids content as a result of Se fortification was detected in tomato [30] and lettuce [31]. Investigations on buckwheat sprouts biofortified with Se and I showed the influence of the chemical form of these elements on grain rutin accumulation [16]. Se at low doses was shown to stimulate the phenylpropanoid metabolic pathway and increase phenol accumulation for overcoming stress conditions [30].…”

“…The common result of such biofortification is the higher accumulation of Se compared to I, regardless of Se and I chemical form used, which has been reported for soil application of these elements on carrot [14], pumpkin and buckwheat seeds soaking [15], and foliar biofortification of pumpkin and buckwheat sprouts [16].…”

“…Studies of photosynthetic activity of buckwheat and pumpkin sprouts revealed no effect of the joint Se and I application on seeds soaking [15], but significant changes in flavonoid composition [16].…”

“…Notably, though the wide diversity of approaches relevant to Se and I joint enrichment [14,15,16,17,18,19], all the previous investigations have been carried out on non Se-accumulator plants having extremely low tolerance to high concentration of this element.…”