The Dinitrophenol and Potassium Iodate Influence on Hordeum Vulgare Seedlings Viability\

Abstract

The using of the pesticides of dinitrophenol type in agriculture has as consequence the major pollution of the environment, the plants taking these substances from the soil and once with these ones they reach in the human and animal organism where they product disequilibrium that are interpreted through the accumulation of free oxygen radicals with direct repercussions on the antioxidant enzyme�s synthesis intensification and on their activity�s increase. The apply of treatments on the barley seeds had significant effects regarding the seeds� germination, the young plants� growth, the oxidative stress enzymes� activity, but also regarding the content of photoassimilators and carotenoids pigments.

Synergistic toxicity between glyphosate and 2,4-dinitrophenol on budding yeast is not due to H₂O₂-mediated oxidative stress

“…Glyphosate was found to induce oxidative stress in Arabidopsis thaliana plants and in yeast [18] [14]. A mild mitochondrial decoupling activity observed with low concentrations of DNP (1 nM) is supposed to decrease the mitochondrion-generated oxidative stress and to increase yeast life span [9] but high concentrations could have the opposite effect as suggested with millimolar range concentrations on Hordeum vulgare plants [19]. Last but not least, the cocktail effect of glyphosate, atrazine and their breakdown products on CHO-K1 cells could result from ROS production [3].…”

Tarnita Polluted Area: Accumulation of Heavy Metals and Nutrients from the Soil by Woody Species

“…Heavy metal pollution around the closed mines is an increasing environmental concern worldwide [1]. Generally, the major pollutants of the environment are taken by plants taking from the soil and they can reach the human and animal organisms where they induce a severe imbalance, which is seen as the accumulation of free oxygen radicals with direct repercussions on the synthesis and increase in the activity of antioxidant enzymes [2]. Indeed, heavy metal pollution affects much the antioxidant potential of various plants.…”