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Effect of microplastics PAN polymer and/or Cu2+ pollution on the growth of Chlorella pyrenoidosa.
Environ Pollut. 2020 Oct; 265(Pt A):114985.EP

Abstract

Polyacrylonitrile polymer (PAN), a common representative textile material and a microplastic, has significant influence on phytoplankton algae, especially with co-exposure with other pollutants, e.g. Cu2+. In the present study, we carried out experiments to reveal the population size variation trends of Chlorella pyrenoidosa over time (during a whole growth cycle of 6 days) under PAN and/or Cu2+. The levels of pigments (chlorophyll a, b, total chlorophyll and carotenoids), chlorophyll a fluorescence parameters, and other physiological and biochemical indices, containing total protein measurements of H2O2, catalase (CAT), and malondialdehyde (MDA) under different treatment groups were measured to explain the physio-ecological mechanism of the effect of PAN and/or Cu2+ on the growth of C. pyrenoidosa. The results showed that PAN, Cu2+ and the combination of PAN and Cu2+ inhibited the growth of C. pyrenoidosa. Chlorophyll a and b decreased significantly with increasing levels of pollutants (PAN and/or Cu2+); however, the carotenoid levels increased with increasing levels of pollutants (PAN and/or Cu2+) for the first three cultivation days. The oxygen-evolving complexes (OECs) of C. pyrenoidosa had been damaged under Cu2+ pollution. The results also showed that CAT activity, MDA content and H2O2 activity of C. pyrenoidosa increased with increasing levels of pollutants (PAN and/or Cu2+); however, total protein content decreased with increasing levels of pollutants (PAN and/or Cu2+) at the first cultivation day. These results indicate that pollutants (PAN and/or Cu2+) are harmful to the growth of the C. pyrenoidosa population and negatively affect the levels and function of the pigments in C. pyrenoidosa by decreasing chlorophyll a and b levels, increasing carotenoid levels, and increasing antioxidant enzyme activity.

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Authors+Show Affiliations

Lin W
College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian Province, 350007, China; Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, Fujian Province, 350300, China.
Su F
Institute of Ocean Research, Fujian Polytechnic Normal Univeristy, Fuqing, Fujian Province, 350300, China; Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, Fujian Province, 350300, China.
Lin M
Institute of Ocean Research, Fujian Polytechnic Normal Univeristy, Fuqing, Fujian Province, 350300, China; Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, Fujian Province, 350300, China. Electronic address: dragonlmz@163.com.
Jin M
Institute of Ocean Research, Fujian Polytechnic Normal Univeristy, Fuqing, Fujian Province, 350300, China; Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, Fujian Province, 350300, China.
Li Y
Institute of Ocean Research, Fujian Polytechnic Normal Univeristy, Fuqing, Fujian Province, 350300, China; Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, Fujian Province, 350300, China.
Ding K
Institute of Ocean Research, Fujian Polytechnic Normal Univeristy, Fuqing, Fujian Province, 350300, China; Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, Fujian Province, 350300, China.
Chen Q
College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian Province, 350007, China. Electronic address: cqhuar@126.com.
Qian Q
College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian Province, 350007, China.
Sun X
College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, Fujian Province, 350007, China.

MeSH

Acrylic ResinsChlorellaChlorophyllChlorophyll AHydrogen PeroxideMicroplasticsPlasticsPolymersWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32563949

Citation

Lin, Wei, et al. "Effect of Microplastics PAN Polymer And/or Cu2+ Pollution On the Growth of Chlorella Pyrenoidosa." Environmental Pollution (Barking, Essex : 1987), vol. 265, no. Pt A, 2020, p. 114985.
Lin W, Su F, Lin M, et al. Effect of microplastics PAN polymer and/or Cu2+ pollution on the growth of Chlorella pyrenoidosa. Environ Pollut. 2020;265(Pt A):114985.
Lin, W., Su, F., Lin, M., Jin, M., Li, Y., Ding, K., Chen, Q., Qian, Q., & Sun, X. (2020). Effect of microplastics PAN polymer and/or Cu2+ pollution on the growth of Chlorella pyrenoidosa. Environmental Pollution (Barking, Essex : 1987), 265(Pt A), 114985. https://doi.org/10.1016/j.envpol.2020.114985
Lin W, et al. Effect of Microplastics PAN Polymer And/or Cu2+ Pollution On the Growth of Chlorella Pyrenoidosa. Environ Pollut. 2020;265(Pt A):114985. PubMed PMID: 32563949.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of microplastics PAN polymer and/or Cu2+ pollution on the growth of Chlorella pyrenoidosa. AU - Lin,Wei, AU - Su,Fang, AU - Lin,Maozi, AU - Jin,Meifang, AU - Li,Yuanheng, AU - Ding,Kewu, AU - Chen,Qinhua, AU - Qian,Qingrong, AU - Sun,Xiaoli, Y1 - 2020/06/11/ PY - 2020/01/24/received PY - 2020/05/31/revised PY - 2020/06/05/accepted PY - 2020/6/22/pubmed PY - 2020/8/18/medline PY - 2020/6/22/entrez KW - Antioxidant stress KW - Chlorella pyrenoidosa KW - Cu(2+) KW - Growth KW - PAN SP - 114985 EP - 114985 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 265 IS - Pt A N2 - Polyacrylonitrile polymer (PAN), a common representative textile material and a microplastic, has significant influence on phytoplankton algae, especially with co-exposure with other pollutants, e.g. Cu2+. In the present study, we carried out experiments to reveal the population size variation trends of Chlorella pyrenoidosa over time (during a whole growth cycle of 6 days) under PAN and/or Cu2+. The levels of pigments (chlorophyll a, b, total chlorophyll and carotenoids), chlorophyll a fluorescence parameters, and other physiological and biochemical indices, containing total protein measurements of H2O2, catalase (CAT), and malondialdehyde (MDA) under different treatment groups were measured to explain the physio-ecological mechanism of the effect of PAN and/or Cu2+ on the growth of C. pyrenoidosa. The results showed that PAN, Cu2+ and the combination of PAN and Cu2+ inhibited the growth of C. pyrenoidosa. Chlorophyll a and b decreased significantly with increasing levels of pollutants (PAN and/or Cu2+); however, the carotenoid levels increased with increasing levels of pollutants (PAN and/or Cu2+) for the first three cultivation days. The oxygen-evolving complexes (OECs) of C. pyrenoidosa had been damaged under Cu2+ pollution. The results also showed that CAT activity, MDA content and H2O2 activity of C. pyrenoidosa increased with increasing levels of pollutants (PAN and/or Cu2+); however, total protein content decreased with increasing levels of pollutants (PAN and/or Cu2+) at the first cultivation day. These results indicate that pollutants (PAN and/or Cu2+) are harmful to the growth of the C. pyrenoidosa population and negatively affect the levels and function of the pigments in C. pyrenoidosa by decreasing chlorophyll a and b levels, increasing carotenoid levels, and increasing antioxidant enzyme activity. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/32563949/Effect_of_microplastics_PAN_polymer_and/or_Cu2+_pollution_on_the_growth_of_Chlorella_pyrenoidosa_ DB - PRIME DP - Unbound Medicine ER -