Reactive oxygen species ( ROS) , which include superoxide anion ( O2. ) , hydroxyl radical (OH) , hydrogen peroxide (H2O2) , singlet oxygen ( 1O2 ) and nitric oxide (NO) are highly reactive particles. Can react with lipids, proteins or DNA , causing irreversible changes in the structure of these compounds. Platelets , like other cells , can generate ROS , which are drawn into the mechanisms of activation of these cells . There are several ways to manufacture platelet RFT .

Almost all soils has seen a steady increase in the content of heavy metals, mainly due to anthropogenic activities . The presence of elevated concentrations of metals has a number of adverse changes in the functioning of the plant cell.