Accumulation of selenium in different wheat genotypes and its protective role against various abiotic stress factors

摘要: Plant-based foods play a critical role in covering daily requirements of human beings for energy and minerals, especially the developing world. Most nutritional compounds existing cereal grains are major protective agents against different chronic diseases. One particular compound with high effect diseases such as cancer cardiovascular is selenium (Se). It widely believed that some forms (Se) among most effective anti-carcinogenic compounds. Studies conducted countries revealed wheat one best Se source beings. Wheat is, therefore, an important targeted stable food enrichment (biofortification) Se. Selenium also to act roles plants abiotic stress factors. However, various controversial results available literature regarding plants. In present study, several experiments have been i) understand better under factors, ii) improve status by treating seeds (soaking Se-containing solution), iii) screen modern wild genotypes their accumulation capacity shoot seed. experiment seed treatment Se, obtained were promising improving concentration. derived from treated soaking solution (up 5 mM), concentration increased 44 μg kg-1 (non-treated seeds) 216 (Se-treated seeds). . Seed could be practical approach Several Triticum dicoccoides cultivars investigated uptake following application sodium selenate soil. The indicated tested did not show genetic variation accumulation, superior when compared terms A nutrient was established follow spelta genotypes. this experiment, identified showing capacity. Such new might valuable resource breeding programs transfer trait high-yielding cultivars. essential beings, but higher literature, exist about its beneficial effects on plant growth. By using both maize plants, greenhouse growth chamber collect information factors drought, salinity, flooding low temperature. has no conditions mentioned. temperature level antioxidative defense enzymes (e.g., superoxide dismutase, ascorbate peroxidase glutathione reductase) measured without supply. vii Increasing supply result consistent activity normal similar found enriched foliar differing concentrations total thesis indicate up mM) grain concentration, tetraploid study sources which exploited programs, iv) enzyme