Comparative Dynamics of Cadmium and Zinc in Plant-Soil Systems: Interactions, Uptake Mechanisms, and Toxicological Implications for Agricultural Sustainability
Keywords:
Heavy Metals, Cadmium Toxicity, Zinc Homeostasis, Metal Transporters, Soil Contamination, Plant Nutrition, Agricultural Sustainability, Phytoremediation, Metal Interactions, Group IIB Elements.Abstract
The heavy metals zinc and cadmium (among others) draw substantial research interest because of their capacity to persist and resist degradation alongside their different functions in plant biology. The harmful substance Cadmium functions as a non-essential element because it presents distinctive threats to plant development and food quality but zinc as an essential micronutrient drives fundamental biological processes including protein development plus genetic processes and carbohydrate metabolic functions. Plant systems experience competitive interactions since these elements from Group IIB show chemical and physical similarities when they uptake or move through the plant tissues. The research investigates soil Cd and Zn pollutant origins from natural and human activities while analyzing industrial processes that affect their uptake bioavailability. The study examines metal transport mechanisms through evaluation of Cd's ability to exploit nutritional transporters while discussing Zn's dependence on ZIP CDF and HMA transport families. This study examines toxicity profiles between Cd and Zn with a particular emphasis on Cd having higher phytotoxic potential because it is nonessential while having high soil mobility. The research highlights the need to investigate rhizospheric metal interactions since they determine sustainable agricultural development and successful phytoremediation method development. Research findings establish the requirement for combined soil management systems which help decrease Cd toxicity while maintaining enough Zn nutrient levels in agricultural crops.
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