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Phytotoxicity, Bioaccumulation, and Degradation of Nonylphenol in Different Microalgal Species without Bacterial Influences.
Int J Mol Sci. 2020 Feb 17; 21(4)IJ

Abstract

Nonylphenol (NP) is a contaminant that has negative impacts on aquatic organisms. To investigate its phytotoxicity, bioaccumulation, and degradation in algae without associated bacteria, six freshwater microalgae-Ankistrodesmus acicularis, Chlorella vulgaris, Chroococcus minutus, Scenedesmus obliquus, Scenedesmus quadricauda, and Selenastrum bibraianum-in bacteria-free cultures were studied. When exposed to 0.5-3.0 mg L-1 NP for 4 days, cell growth and photosynthesis, including maximal photochemistry (Fv/Fm), were suppressed progressively. The antioxidant responses of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) showed species differences. While the antioxidant enzymes in C. vulgaris and S. obliquus were more active with the increase of NP (0-3 mg L-1), they dropped in the other four algae at concentrations of 1 and 1.5 mg L-1. Therefore, C. vulgaris and S. obliquus were designated as NP-tolerant species and showed more conspicuous and faster changes of antioxidant reactions compared with the four NP-sensitive species. All six species degraded NP, but A. acicularis was more reactive at low NP concentrations (<1 mg L-1), suggesting its possible application in sewage treatment for its potential for effective NP removal from water bodies in a suitable scope. Therefore, the conclusion is that biodegradation of NP by algae is species specific.

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Authors+Show Affiliations

He N
College of Life Science and Resources and Environment, Yichun University, Yichun 336000, China.
Liu Z
School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
Sun X
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
Wang S
Institute for Marine & Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, TAS 7001, Australia.
Liu W
South China Institute of Environmental Science, Ministry of Ecology and Environment, NO.18 Ruihe RD., Guangzhou 510535, China.
Sun D
Institute of Hydrobiology, Jinan University, Guangzhou 510632, China.
Duan S
Institute of Hydrobiology, Jinan University, Guangzhou 510632, China.

MeSH

BacteriaBioaccumulationBiodegradation, EnvironmentalCatalaseChlorella vulgarisChlorophyceaeCyanobacteriaFresh WaterMicroalgaePeroxidasePhenolsPhotosynthesisScenedesmusSuperoxide Dismutase

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32079213

Citation

He, Ning, et al. "Phytotoxicity, Bioaccumulation, and Degradation of Nonylphenol in Different Microalgal Species Without Bacterial Influences." International Journal of Molecular Sciences, vol. 21, no. 4, 2020.
He N, Liu Z, Sun X, et al. Phytotoxicity, Bioaccumulation, and Degradation of Nonylphenol in Different Microalgal Species without Bacterial Influences. Int J Mol Sci. 2020;21(4).
He, N., Liu, Z., Sun, X., Wang, S., Liu, W., Sun, D., & Duan, S. (2020). Phytotoxicity, Bioaccumulation, and Degradation of Nonylphenol in Different Microalgal Species without Bacterial Influences. International Journal of Molecular Sciences, 21(4). https://doi.org/10.3390/ijms21041338
He N, et al. Phytotoxicity, Bioaccumulation, and Degradation of Nonylphenol in Different Microalgal Species Without Bacterial Influences. Int J Mol Sci. 2020 Feb 17;21(4) PubMed PMID: 32079213.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytotoxicity, Bioaccumulation, and Degradation of Nonylphenol in Different Microalgal Species without Bacterial Influences. AU - He,Ning, AU - Liu,Zhiwei, AU - Sun,Xian, AU - Wang,Shuangyao, AU - Liu,Weijie, AU - Sun,Dong, AU - Duan,Shunshan, Y1 - 2020/02/17/ PY - 2019/12/14/received PY - 2020/02/07/revised PY - 2020/02/13/accepted PY - 2020/2/22/entrez PY - 2020/2/23/pubmed PY - 2020/12/15/medline KW - antioxidant enzyme KW - biodegradation KW - microalgae KW - nonylphenol KW - photosynthetic activities JF - International journal of molecular sciences JO - Int J Mol Sci VL - 21 IS - 4 N2 - Nonylphenol (NP) is a contaminant that has negative impacts on aquatic organisms. To investigate its phytotoxicity, bioaccumulation, and degradation in algae without associated bacteria, six freshwater microalgae-Ankistrodesmus acicularis, Chlorella vulgaris, Chroococcus minutus, Scenedesmus obliquus, Scenedesmus quadricauda, and Selenastrum bibraianum-in bacteria-free cultures were studied. When exposed to 0.5-3.0 mg L-1 NP for 4 days, cell growth and photosynthesis, including maximal photochemistry (Fv/Fm), were suppressed progressively. The antioxidant responses of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) showed species differences. While the antioxidant enzymes in C. vulgaris and S. obliquus were more active with the increase of NP (0-3 mg L-1), they dropped in the other four algae at concentrations of 1 and 1.5 mg L-1. Therefore, C. vulgaris and S. obliquus were designated as NP-tolerant species and showed more conspicuous and faster changes of antioxidant reactions compared with the four NP-sensitive species. All six species degraded NP, but A. acicularis was more reactive at low NP concentrations (<1 mg L-1), suggesting its possible application in sewage treatment for its potential for effective NP removal from water bodies in a suitable scope. Therefore, the conclusion is that biodegradation of NP by algae is species specific. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/32079213/Phytotoxicity_Bioaccumulation_and_Degradation_of_Nonylphenol_in_Different_Microalgal_Species_without_Bacterial_Influences_ DB - PRIME DP - Unbound Medicine ER -