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Phytoremediation of Cadmium Contaminated Soil: Impacts on Morphological Traits, Proline Content and Stomata Parameters of Sweet Sorghum Seedlings

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Abstract

Phytoremediation is a green, simple, eco-friendly, sustainable, and cost-effective remediation technology to remove and degrade contaminants from soil. In this study, a germination experiment and a pot experiment were performed in greenhouse to evaluate cadmium toxicity and phytoremediation capacity. The results showed that there was the highest membership function value of cadmium (MFVC) in KFJT-3 than that of KFJT-CK and KFJT-1, the value being 0.473, 0.456 and 0.413, respectively. Furthermore, the highest biomass was discovered in KFJT-3 compared to the other genotypes under 50 mg/kg cadmium stress. Physiological analysis showed that proline content significantly increased in KFJT-3, the value being 31.88%. In addition, Bioaccumulation factor (BAF) and Translocation factor (TF) value were 3.80 and 1.02 for KFJT-3, respectively. In conclusion, BAF and TF values showed that the cadmium tolerance of KFJT-1 and KFJT-3 could be higher than that of KFJT-CK, which could be the genotype for phytoremediation of cadmium contaminated soil.

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Acknowledgements

This work was supported by the poverty reduction project of Chinese Academy of Sciences (Y906030YQ0) and the National Natural Science Foundation of China (NSFC, Grant No. 31770416).

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Correspondence to Xia Yan or Xiao-Fei Ma.

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Xicun Dong and Yan Chang have contributed equally to this work.

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Dong, X., Chang, Y., Zheng, R. et al. Phytoremediation of Cadmium Contaminated Soil: Impacts on Morphological Traits, Proline Content and Stomata Parameters of Sweet Sorghum Seedlings. Bull Environ Contam Toxicol 106, 528–535 (2021). https://doi.org/10.1007/s00128-021-03125-7

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  • DOI: https://doi.org/10.1007/s00128-021-03125-7

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