Morpho-Physiological and Antioxidative Responses of Wheat Seedlings to Different Forms of Selenium

Selenium (Se) deficiency in human and animal nutrition is primarily due to low levels of Se soils. It can be prevented by enriching crops, such as wheat, with through agronomic biofortification. Although not essential for plants, it shows a dual effect on their metabolism depending its concentration. This study aimed elucidate the impact five different concentrations (0.4, 4, 20, 40, 400 mg/kg) selenate selenite oxidative status antioxidative response wheat (Triticum aestivum L., cv. Kraljica) shoots roots. According morpho-physiological analyses, was found have lower toxicity threshold than selenate. The measurement stress biomarkers showed that did cause damage seedlings activation detoxification mechanisms at biochemical level, which depended type tissue, concentration, form applied Se. Treatment 20 mg/kg recommended seedling biofortification sufficient increase accumulation without signs toxicity. These results contribute better understanding seedlings’ physiological responses development more effective strategies.