Euro Green Chemistry 2019- Impact of the application of pesticides on the concentration of some heavy metals on vegetables- Hassan Garba Wafi-Adamawa State University

摘要

Heavy metals change are experimental to initiate both transientand marked disturbances in the chemistry and physiology ofplants in vitro and in vivo with its attend ramification to livingorganism via the food chain. Fundamentally participating invitro in suggest the arrangement of immediate oxygen species(ROS) or reactive nitrogen species (RNS) in plants, inactivatingenzymatic process and provocative the compartmentalization ofheavy metals for vital element . The in vivo properties werealso observed to introduce spatial disorientation in cell-membrane reliability and architecture. The dynamics of metalions transport into plants among further pathways rest on thehigh negative potential of the plasma membrane and additional,to the improved cation-exchange capacity of the cell wall . Dueto the negative charge potentials on the soil surface, solublemetals ions are voluntarily attracted and deposited at the surfaceof the soil particles. The cations deposit at the surface of thesoil particles, based on some distribution mechanism areequally displaced by charged metabolite secreted on the plantroots leaving behind available metal-cations for uptake andtranslocation through the roots. Studies discovered a directrelationship between the corrosion in soil fertility and the refusein plant growth following the extreme application of plantprotection products such as pesticides. Study that involved thefunction played by pesticides or fertilizers as metal-chelatingvehicle in the translocation of metals in plants are rarelyinvestigated. Chiroma et al. (2007) investigate the contact ofpesticides on metal increase in two species of spinach plant.The study showing superior uptake in the spinach treated withthe pesticides, with the maroon species showing importantincrease compared to the green spinach species. The study ishowever, imperfect to the two species of spinach with littleimportance giving to the chemistry and physiology of the plantas related to the uptake and translocation of the metal-pesticides. Is a known fact that, factors such as soil compositionor chemistry were observed to authority soil-metalbioavailability and show the chelating properties of thepesticides with metals. Then after, based on the differences inplant physiology, these factors always influence the uptake andchange of substances in plants. Since the uptake of metals byplants vary according to the metal chelating properties withpesticides, the soil pH and varies in plant physiology, furtherstudy is therefore promote to examine the authority ofpesticides and its dynamic on metal gathering and translocationamong deferent plants types.