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Polyaspartate and liquid amino acid fertilizer are appropriate alternatives for promoting the phytoextraction of cadmium and lead in Solanum nigrum L.
Chemosphere. 2019 Dec; 237:124483.C

Abstract

Traditional metal chelators, such as ethylenediaminetetraacetic acid (EDTA), have been gradually replaced due to their poor biodegradability in soil and high risk of heavy metal leaching into groundwater, which pose high environmental risks to the health of humans and animals. In this study, a liquid amino acid fertilizer (LAAF, waste proteins from hydrolysates of animal carcasses) and polyaspartate (PASP) were used as additives to enhance the phytoextraction of cadmium (Cd) and lead (Pb) from contaminated soil. We conducted pot experiments to investigate the phytoextraction capacity of Solanum nigrum, a Cd accumulator, grown on soil highly contaminated with Cd and Pb in the absence (as controls) or presence of PASP and LAAF. Both PASP and LAAF significantly improved plant growth, Cd accumulation, and total Cd and Pb content in S. nigrum shoots and roots. PASP and LAAF application promoted Cd translocation from roots to shoots in S. nigrum and Cd bio-accessibility in rhizosphere soils, but this was not the case for Pb. Both PASP and LAAF increased Cd and Pb phytoextraction by S. nigrum plants, and Cd phytoextraction was more effective in LAAF-assisted S. nigrum than in PASP-assisted S. nigrum. These findings demonstrate that the low cost and ecofriendly features of recycled waste proteins make them good candidates for chelant-enhanced phytoextraction from heavy metal-contaminated soils.

Authors+Show Affiliations

College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Department of Biology, Henan University, Kaifeng, 475001, China.Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, 210095, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, 210095, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, 210095, China.College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, 210095, China. Electronic address: yxia@njau.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31404738

Citation

He, Xiaoman, et al. "Polyaspartate and Liquid Amino Acid Fertilizer Are Appropriate Alternatives for Promoting the Phytoextraction of Cadmium and Lead in Solanum Nigrum L." Chemosphere, vol. 237, 2019, p. 124483.
He X, Zhang J, Ren Y, et al. Polyaspartate and liquid amino acid fertilizer are appropriate alternatives for promoting the phytoextraction of cadmium and lead in Solanum nigrum L. Chemosphere. 2019;237:124483.
He, X., Zhang, J., Ren, Y., Sun, C., Deng, X., Qian, M., Hu, Z., Li, R., Chen, Y., Shen, Z., & Xia, Y. (2019). Polyaspartate and liquid amino acid fertilizer are appropriate alternatives for promoting the phytoextraction of cadmium and lead in Solanum nigrum L. Chemosphere, 237, 124483. https://doi.org/10.1016/j.chemosphere.2019.124483
He X, et al. Polyaspartate and Liquid Amino Acid Fertilizer Are Appropriate Alternatives for Promoting the Phytoextraction of Cadmium and Lead in Solanum Nigrum L. Chemosphere. 2019;237:124483. PubMed PMID: 31404738.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Polyaspartate and liquid amino acid fertilizer are appropriate alternatives for promoting the phytoextraction of cadmium and lead in Solanum nigrum L. AU - He,Xiaoman, AU - Zhang,Jia, AU - Ren,Yingnan, AU - Sun,Chuanyu, AU - Deng,Xiaopeng, AU - Qian,Meng, AU - Hu,Zhubing, AU - Li,Rong, AU - Chen,Yahua, AU - Shen,Zhenguo, AU - Xia,Yan, Y1 - 2019/08/01/ PY - 2019/04/15/received PY - 2019/07/26/revised PY - 2019/07/28/accepted PY - 2019/8/14/pubmed PY - 2019/12/18/medline PY - 2019/8/13/entrez KW - Heavy metal-contaminated soils KW - Phytoextraction KW - Polyaspartate KW - Recycling of waste proteins KW - Solanum nigrum SP - 124483 EP - 124483 JF - Chemosphere JO - Chemosphere VL - 237 N2 - Traditional metal chelators, such as ethylenediaminetetraacetic acid (EDTA), have been gradually replaced due to their poor biodegradability in soil and high risk of heavy metal leaching into groundwater, which pose high environmental risks to the health of humans and animals. In this study, a liquid amino acid fertilizer (LAAF, waste proteins from hydrolysates of animal carcasses) and polyaspartate (PASP) were used as additives to enhance the phytoextraction of cadmium (Cd) and lead (Pb) from contaminated soil. We conducted pot experiments to investigate the phytoextraction capacity of Solanum nigrum, a Cd accumulator, grown on soil highly contaminated with Cd and Pb in the absence (as controls) or presence of PASP and LAAF. Both PASP and LAAF significantly improved plant growth, Cd accumulation, and total Cd and Pb content in S. nigrum shoots and roots. PASP and LAAF application promoted Cd translocation from roots to shoots in S. nigrum and Cd bio-accessibility in rhizosphere soils, but this was not the case for Pb. Both PASP and LAAF increased Cd and Pb phytoextraction by S. nigrum plants, and Cd phytoextraction was more effective in LAAF-assisted S. nigrum than in PASP-assisted S. nigrum. These findings demonstrate that the low cost and ecofriendly features of recycled waste proteins make them good candidates for chelant-enhanced phytoextraction from heavy metal-contaminated soils. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31404738/Polyaspartate_and_liquid_amino_acid_fertilizer_are_appropriate_alternatives_for_promoting_the_phytoextraction_of_cadmium_and_lead_in_Solanum_nigrum_L_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)31707-2 DB - PRIME DP - Unbound Medicine ER -