Loss of ALN Function in Arabidopsis thaliana Induces Allantoin Accumulation and Enhances Antioxidant Enzyme Responses to Copper Toxicity
Environmental contamination with heavy metals severely impairs crop productivity, primarily by inhibiting growth and triggering oxidative damage. To counteract these adverse effects, plants undergo complex metabolic reprogramming. Among these adaptations, the accumulation of purine-derived ureides—particularly allantoi...