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To investigate the variations of shoot PAEs(DBP and DEHP)concentration among 28 Chinese flowering cabbage cultivars and to determine the differences in subcellular distribution of PAEs between low-and high-PAEs accumulators in two PAEs treatments,a pot experiment was carried out.There were significant differences among the 28 cultivars in their ability to accumulate PAEs in shoots.For the DBP accumulation,the maximal differences of the low-DBP and high-DBP exposure between the cultivars containing the highest and lowest DBP were 3.7-and 5.3-fold under low-PAEs treatment(10 mg kg-1 each for DBP and DEHP),respectively.Similarly,for the DEHP accumulation,the maximal differences of the low-DEHP and high-DEHP exposure were 5.2-and 6.8-fold under low-PAEs treatment,respectively.Two cultivars,cv.Lvbao70 and cv.Huaguan were identified as low-PAEs accumulator and high-PAEs accumulator,respectively.Due to lower translocation factors (TFs),PAEs accumulation in shoots of the cv.Lvbao70 was more effectively obstructed from the PAEs retention of roots than in cv.Huaguan,which might be one of its main mechanisms to reduce PAEs concentration in shoots.In subcellular distribution experiment,results showed that cell walls and organelles were the dominant storage compartments for PAEs in Chinese flowering cabbage.Moreover,PAEs(both DBP and DEHP)absorbed by cv.Lvbao70 seemed to be higher in cell walls and organelles of roots,which explained well lower TFs for cv.Lvbao70 leading to its low PAEs accumulating property.Much of the evidence obtained from the present study proved that low or high PAEs-accumulating ability of Chinese flowering cabbage is a stable biological property at cultivar level and,thus,is genotype dependent.