[1] [1] ZENG F R, MALLHI Z I, KHAN N, et al. Combined citric acid and glutathione augments lead (Pb) stress tolerance and phytoremediation of castorbean through antioxidant machinery and Pb uptake[J]. Sustainability, 2021, 13(7): 4073.

[4] [4] ZULFIQAR U, FAROOQ M, HUSSAIN S, et al. Lead toxicity in plants: Impacts and remediation[J]. Journal of Environmental Management, 2019, 250: 109557.

[6] [6] FORTE J, MUTITI S. Phytoremediation potential ofHelianthus annuusandHydrangea paniculatain copper and leadcontaminated soil[J]. Water, Air, & Soil Pollution, 2017, 228(2): 77.

[7] [7] MARQUES D M, VERONEZE JNIOR V, DA SILVA A B, et al. Copper toxicity on photosynthetic responses and root morphology ofHymenaea courbarilL. (Caesalpinioideae)[J]. Water, Air, & Soil Pollution, 2018, 229(5): 1-14.

[13] [13] KAUSHAL J, MAHAJAN P, KAUR N. A review on application of phytoremediation technique for eradication of synthetic dyes by using ornamental plants[J]. Environmental Science and Pollution Research, 2021, 28(48): 67970-67989.

[14] [14] HUANG F, ZHOU H, GU J F, et al. Differences in absorption of cadmium and lead among fourteen sweet potato cultivars and health risk assessment[J]. Ecotoxicology and Environmental Safety, 2020, 203: 111012.

[16] [16] ROUT G R, SAMANTARAY S, DAS P. Differential cadmium tolerance of mung bean and rice genotypes in hydroponic culture[J]. Acta Agriculturae Scandinavica, B, 1999, 49(4): 234-241.

[21] [21] LUX A, SOTTNKOV A, OPATRN J, et al. Differences in structure of adventitious roots inSalixclones with contrasting characteristics of cadmium accumulation and sensitivity[J]. Physiologia Plantarum, 2004, 120(4): 537-545.

[22] [22] ORMAN S, OK H, KAPLAN M. Application of sewage sludge for growing alfalfa, its effects on the macro-micronutrient concentration, heavy metal accumulation, and translocation[J]. Ekoloji, 2014, 23(90): 10-19.

[24] [24] BAKER A, BROOKS R. Terrestrial higher plants which hyperaccumulate metallic elements. a review of their distribution, ecology and phytochemistry[J]. Biorecovery, 1989, 1: 81-126.

[25] [25] KAUSHAL J, MAHAJAN P, KAUR N. A review on application of phytoremediation technique for eradication of synthetic dyes by using ornamental plants[J]. Environmental Science and Pollution Research, 2021, 28(48): 67970-67989.