Effects of phosphorus supplied in soil on subcellular distribution and chemical forms of cadmium in two Chinese flowering cabbage (Brassica parachinensis L.) cultivars differing in cadmium accumulation

► Mechanisms for role of P in Cd accumulation in Brassica parachinensis were investigated. ► Supply of P enhances the insolubility and immobility of Cd in vivo. ► Mechanisms for difference in Cd accumulation between cultivars were investigated. ► Low-Cd cultivar is associated with low in vivo mobility of Cd.