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. 2015 May 8;6:293. doi: 10.3389/fpls.2015.00293

Figure 7.

Figure 7

The uptake, translocation and distribution of Pb in radish line NAU–XHT under 500 mg/L Pb treatment. Symbol “•” represents basic concentration unit, “▲” represents 10-fold of the unit, “★” represents 100-fold of the unit. The number of unit symbol refers to Pb relative concentration for tissue levels, chemical forms, and subcellular fractions from various plant parts. F-HCl represents HCl-extractable form, lead oxalic; F-HAC represents HAC-extractable form, undissolved lead phosphate including PbHPO4 and Pb3(PO4)2; F-NaCl extracting pectates, protein integrated Pb; F-dH2O extracting water-soluble Pb of organic acid, and Pb(PO4)2. CW (Cell wall), N (Nucleus), M (Mitochondria), N&C (Nucleus and Chloroplasts fraction), S&R (Soluble fraction and Ribosome).