Exogenous sodium nitroprusside alleviates cadmium toxicity in Solanum nigrum via antioxidant activation, metal redistribution, and gene expression modulation - Fang Yang; Jie Zou; Jinqun Feng; Ting Yu; Shuai Zhang; Shunqin Zhu; Wanhong Liu; Rui Li (Protoplasma, 2026)