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Pteris vittata coupled with phosphate rock effectively reduced As and Cd uptake by water spinach from contaminated soil.
Chemosphere. 2020 May; 247:125916.C

Abstract

Arsenic (As) and cadmium (Cd) are ubiquitous in the environment and they are both toxic to humans. When present in soils, they can enter food chain, thereby threatening human health. Water spinach (Ipomoea aquatica) is an important leafy vegetable, which is widely consumed in Asian countries. However, it is efficient in taking up As and Cd from soils and accumulating them in the edible parts. Therefore, it is of significance to reduce its As and Cd content, especially in contaminated soil. In this study, pot experiments were conducted to investigate the ability of As-hyperaccumulator Pteris vittata in reducing As and Cd uptake by water spinach under different phosphorus treatments. P. vittata was grown for 60 d in a contaminated-soil amended with P fertilizer (+P) or phosphate rock (+PR), followed by water spinach cultivation for another 30 d. Plant biomass, As and Cd contents in plants and soils, and soil pH were analyzed. We found that, P. vittata coupled with PR decreased the As concentration in water spinach shoots by 42%, probably due to As uptake by P. vittata. Moreover, P. vittata decreased the Cd accumulation in water spinach by 24-44%, probably due to pH increase of 0.47-0.61 after P. vittata cultivation. Taking together, the results showed that P. vittata coupled with PR decreased the As and Cd content in water spinach, which is of significance for improving food safety and protecting human health.

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Jiangsu, 210023, China.State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Jiangsu, 210023, China.State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Jiangsu, 210023, China.State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Jiangsu, 210023, China.State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Jiangsu, 210023, China; School of Environment, Nanjing Normal University, Nanjing, 210023, China. Electronic address: chenyanshan@njnu.edu.cn.Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China. Electronic address: lqma@zju.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32069716

Citation

Hua, Chen-Yu, et al. "Pteris Vittata Coupled With Phosphate Rock Effectively Reduced as and Cd Uptake By Water Spinach From Contaminated Soil." Chemosphere, vol. 247, 2020, p. 125916.
Hua CY, Chen JX, Cao Y, et al. Pteris vittata coupled with phosphate rock effectively reduced As and Cd uptake by water spinach from contaminated soil. Chemosphere. 2020;247:125916.
Hua, C. Y., Chen, J. X., Cao, Y., Li, H. B., Chen, Y., & Ma, L. Q. (2020). Pteris vittata coupled with phosphate rock effectively reduced As and Cd uptake by water spinach from contaminated soil. Chemosphere, 247, 125916. https://doi.org/10.1016/j.chemosphere.2020.125916
Hua CY, et al. Pteris Vittata Coupled With Phosphate Rock Effectively Reduced as and Cd Uptake By Water Spinach From Contaminated Soil. Chemosphere. 2020;247:125916. PubMed PMID: 32069716.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pteris vittata coupled with phosphate rock effectively reduced As and Cd uptake by water spinach from contaminated soil. AU - Hua,Chen-Yu, AU - Chen,Jun-Xiu, AU - Cao,Yue, AU - Li,Hong-Bo, AU - Chen,Yanshan, AU - Ma,Lena Q, Y1 - 2020/01/17/ PY - 2019/11/20/received PY - 2020/01/09/revised PY - 2020/01/13/accepted PY - 2020/2/20/pubmed PY - 2020/4/23/medline PY - 2020/2/20/entrez KW - Co-contamination KW - Food safety KW - Heavy metal KW - Insoluble P KW - Phytoremediation KW - Plant uptake SP - 125916 EP - 125916 JF - Chemosphere JO - Chemosphere VL - 247 N2 - Arsenic (As) and cadmium (Cd) are ubiquitous in the environment and they are both toxic to humans. When present in soils, they can enter food chain, thereby threatening human health. Water spinach (Ipomoea aquatica) is an important leafy vegetable, which is widely consumed in Asian countries. However, it is efficient in taking up As and Cd from soils and accumulating them in the edible parts. Therefore, it is of significance to reduce its As and Cd content, especially in contaminated soil. In this study, pot experiments were conducted to investigate the ability of As-hyperaccumulator Pteris vittata in reducing As and Cd uptake by water spinach under different phosphorus treatments. P. vittata was grown for 60 d in a contaminated-soil amended with P fertilizer (+P) or phosphate rock (+PR), followed by water spinach cultivation for another 30 d. Plant biomass, As and Cd contents in plants and soils, and soil pH were analyzed. We found that, P. vittata coupled with PR decreased the As concentration in water spinach shoots by 42%, probably due to As uptake by P. vittata. Moreover, P. vittata decreased the Cd accumulation in water spinach by 24-44%, probably due to pH increase of 0.47-0.61 after P. vittata cultivation. Taking together, the results showed that P. vittata coupled with PR decreased the As and Cd content in water spinach, which is of significance for improving food safety and protecting human health. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/32069716/Pteris_vittata_coupled_with_phosphate_rock_effectively_reduced_As_and_Cd_uptake_by_water_spinach_from_contaminated_soil_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)30108-9 DB - PRIME DP - Unbound Medicine ER -