Physiological and Transcriptomic Insights into Melatonin-Mediated Alleviation of Cadmium Stress in the Endangered Plant Plantago fengdouensis
Plantago fengdouensis is an endangered species threatened by habitat loss, population fragmentation, and cadmium (Cd) contamination. This study evaluated the effects of exogenous melatonin (MT) on Cd tolerance from seed germination to the seedling stage. In Petri-dish assays, 50–100 mg L−1 Cd markedly inhibited germina...