Tags

Type your tag names separated by a space and hit enter

Toxic response of the freshwater green algae Chlorella pyrenoidosa to combined effect of flotation reagent butyl xanthate and nickel.
Environ Pollut. 2021 Oct 01; 286:117285.EP

Abstract

Butyl Xanthate (BX) is a typical flotation reagent used to extract non-ferrous nickel ores, discharged into the surrounding environment of mining areas in large quantities. However, few studies have focused on the toxicity of combined pollution of BX and nickel (Ni) on aquatic plants, especially phytoplankton, the main producer of aquatic ecosystems. The toxicity and potential mechanism of single and combined pollution of BX and Ni at different concentrations (0-20 mg L-1) on typical freshwater algae (Chlorella pyrenoidosa) were studied. BX slightly stimulated the growth of C. pyrenoidosa on the first day, but Ni and Ni/BX mixture significantly inhibited it during incubation. Results showed that the inhibition rate (I) of the pollutants on the growth of C. pyrenoidosa followed the order: Ni/BX mixture > Ni > BX. The 96-h 20% effective inhibitory concentrations (96h-EC20) of Ni and BX on C. pyrenoidosa growth were 3.86 mg L-1 and 19.25 mg L-1, respectively, indicating C. pyrenoidosa was sensitive to pollutants. The content of total soluble protein (TSP) and chlorophyll a (Chl-a) changed significantly, which may be caused by the damage of pollutants to cell structures (cell membranes and chloroplasts). In addition, the I of pollutants on C. pyrenoidosa growth was related to dose, superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA). The increasement of reactive oxygen species (ROS), antioxidant enzymes (SOD and CAT), and MDA content, suggested C. pyrenoidosa suffered from oxidative stress, leading to lipid oxidation. These results will help to understand the toxicity mechanism of pollutants in typical mining areas and assess the environmental risks of pollutants to primary producers in aquatic ecosystems.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Li H
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Yao J
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China. Electronic address: yaojun@cugb.edu.cn.
Duran R
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China; Equipe Environnement et Microbiologie, MELODY Group, Université de Pau et des Pays de l'Adour, E2S-UPPA, IPREM UMR CNRS 5254, BP 1155, 64013, Pau Cedex, France.
Liu J
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Min N
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Chen Z
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Zhu X
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Zhao C
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Ma B
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Pang W
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Li M
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Cao Y
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
Liu B
School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.

MeSH

ChlorellaChlorophyll AEcosystemFresh WaterIndicators and ReagentsNickelSuperoxide DismutaseThionesWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33984773

Citation

Li, Hao, et al. "Toxic Response of the Freshwater Green Algae Chlorella Pyrenoidosa to Combined Effect of Flotation Reagent Butyl Xanthate and Nickel." Environmental Pollution (Barking, Essex : 1987), vol. 286, 2021, p. 117285.
Li H, Yao J, Duran R, et al. Toxic response of the freshwater green algae Chlorella pyrenoidosa to combined effect of flotation reagent butyl xanthate and nickel. Environ Pollut. 2021;286:117285.
Li, H., Yao, J., Duran, R., Liu, J., Min, N., Chen, Z., Zhu, X., Zhao, C., Ma, B., Pang, W., Li, M., Cao, Y., & Liu, B. (2021). Toxic response of the freshwater green algae Chlorella pyrenoidosa to combined effect of flotation reagent butyl xanthate and nickel. Environmental Pollution (Barking, Essex : 1987), 286, 117285. https://doi.org/10.1016/j.envpol.2021.117285
Li H, et al. Toxic Response of the Freshwater Green Algae Chlorella Pyrenoidosa to Combined Effect of Flotation Reagent Butyl Xanthate and Nickel. Environ Pollut. 2021 Oct 1;286:117285. PubMed PMID: 33984773.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Toxic response of the freshwater green algae Chlorella pyrenoidosa to combined effect of flotation reagent butyl xanthate and nickel. AU - Li,Hao, AU - Yao,Jun, AU - Duran,Robert, AU - Liu,Jianli, AU - Min,Ning, AU - Chen,Zhihui, AU - Zhu,Xiaozhe, AU - Zhao,Chenchen, AU - Ma,Bo, AU - Pang,Wancheng, AU - Li,Miaomiao, AU - Cao,Ying, AU - Liu,Bang, Y1 - 2021/05/03/ PY - 2021/01/18/received PY - 2021/04/03/revised PY - 2021/04/28/accepted PY - 2021/5/14/pubmed PY - 2021/8/26/medline PY - 2021/5/13/entrez KW - Butyl xanthate KW - Combined pollution KW - Lipid oxidation KW - Nickel KW - Oxidative stress SP - 117285 EP - 117285 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 286 N2 - Butyl Xanthate (BX) is a typical flotation reagent used to extract non-ferrous nickel ores, discharged into the surrounding environment of mining areas in large quantities. However, few studies have focused on the toxicity of combined pollution of BX and nickel (Ni) on aquatic plants, especially phytoplankton, the main producer of aquatic ecosystems. The toxicity and potential mechanism of single and combined pollution of BX and Ni at different concentrations (0-20 mg L-1) on typical freshwater algae (Chlorella pyrenoidosa) were studied. BX slightly stimulated the growth of C. pyrenoidosa on the first day, but Ni and Ni/BX mixture significantly inhibited it during incubation. Results showed that the inhibition rate (I) of the pollutants on the growth of C. pyrenoidosa followed the order: Ni/BX mixture > Ni > BX. The 96-h 20% effective inhibitory concentrations (96h-EC20) of Ni and BX on C. pyrenoidosa growth were 3.86 mg L-1 and 19.25 mg L-1, respectively, indicating C. pyrenoidosa was sensitive to pollutants. The content of total soluble protein (TSP) and chlorophyll a (Chl-a) changed significantly, which may be caused by the damage of pollutants to cell structures (cell membranes and chloroplasts). In addition, the I of pollutants on C. pyrenoidosa growth was related to dose, superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA). The increasement of reactive oxygen species (ROS), antioxidant enzymes (SOD and CAT), and MDA content, suggested C. pyrenoidosa suffered from oxidative stress, leading to lipid oxidation. These results will help to understand the toxicity mechanism of pollutants in typical mining areas and assess the environmental risks of pollutants to primary producers in aquatic ecosystems. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/33984773/Toxic_response_of_the_freshwater_green_algae_Chlorella_pyrenoidosa_to_combined_effect_of_flotation_reagent_butyl_xanthate_and_nickel_ DB - PRIME DP - Unbound Medicine ER -