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Silicon Fertilization Enhances the Resistance of Tobacco Plants to Combined Cd and Pb Contamination: Physiological and Microbial Mechanisms

Aaron Shew

Environmental pollution due to heavy metal contamination, such as cadmium (Cd) and lead (Pb), has become a significant concern worldwide. These toxic metals not only threaten ecosystem health but also pose risks to human health through the food chain. In recent years, researchers have explored various approaches to mitigate heavy metal-induced toxicity in plants. Among these strategies, silicon (Si) fertilization has gained attention for its potential to enhance plant resistance to metal stress. This article examines the effects of silicon fertilization on tobacco plants subjected to combined Cd and Pb contamination, elucidating the physiological and microbial mechanisms involved in conferring resistance