Subcellular Distribution and Chemical Forms of Cadmium in the Medicine Food Homology Plant Platycodon grandiflorum (Jacq.) A.DC.

Although Platycodon grandiflorum (Jacq.) A.DC. is a renowned medicine food homology plant, reports of excessive cadmium (Cd) levels are common, which affects its safety for clinical use and consumption. To enable Cd to be regulated or reduced, it necessary first elucidate the mechanism uptake accumulation in addition detoxification mechanisms. This present study used inductively couple plasma-mass-spectrometry analyze subcellular distribution chemical forms different tissues P. grandiflorum. The experimental results showed that was mainly accumulated roots [predominantly cell wall (50.96%–61.42%)], found primarily hypomobile hypotoxic forms. proportion soluble fraction increased after exposure, insoluble phosphate oxalate leaves, with higher increase Cd. Therefore, likely root retention mechanisms, deposition, vacuole sequestration, formation low mobility toxicity tolerance strategies by this provide theoretical grounding mechanisms grandiflorum, they can as reference developing limits standards other plants.