Several newly discovered Mo-enriched plants with a focus on Macleaya cordata

摘要: Phytoremediation as an alternative strategy has been a widespread attention. The screening of enriched plants and hyperaccumulators is the key strategy. So this study examined status heavy metal pollution in molybdenum (Mo) mine soils, accumulation growing on mine, their tolerance strategies. analysis 14 soils 27 plant samples mining area showed that Mo, zinc (Zn), cadmium (Cd) concentrations exceeded soil safety standards levels varied samples. Mo was with average total content 256.1 mg/kg soils. As Mo-enriched plants, Macleaya cordata (Willd.) R. Br. Morus australis Poir. were 704.4 772.4 mg/kg, respectively. M. selected research material, due to its high biomass. Molybdenum significantly decreased biomass photosynthesis at concentration (> 200 μmol/L), but reached maximum after 50 μmol/L treatment, Analysis subcellular distribution chemical speciation distributed certain way extracts suggested it may be present cell wall soluble fraction roots (51.9-63.9%; 26.1-44.7%) or shoots (30.0-44.4%; 47.3-56.0%) complexed organic acid, pectate, oxalate, protein. This might responsible for adaptation stress. Therefore, could serve potential utilize phytoremediation Mo-contaminated soil.