The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Microplastic Impacts on Microalgae Growth: Effects of Size and Humic Acid
Abstract
Research has already demonstrated the toxic effects of microplastics (MPs) on different biota. However, the underlying toxic mechanism of MPs remains to be elucidated, especially the effect of particle size and the presence of dissolved organic matter in water. This study investigated the impact on Scenedesmus obliquus exposed in five types of polystyrene particle suspensions with different sizes and surface charges, in the presence and absence of humic acid (HA). Results indicated that the 50% growth inhibition rate of S. obliquus showed no significant difference between the five types of MPs, but the toxic mechanism varied with particle size. Larger size MPs caused adverse effects by blocking the light transport and affecting photosynthesis, while smaller ones destroyed the cell wall by adsorbing onto the algae surface. Also, the addition of HA significantly alleviated the toxicity of smaller size MPs, but not of the larger ones. Scanning electron microscopy images and the reactive oxygen species assay demonstrated that the HA could form a corona on the surface of MPs, reduce the affinity to microalgae, and minimize the adverse effect. Together, these findings identified important factors in determining the toxicity of MPs, providing valuable data for risk assessment of MPs.
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Microplastics as an emerging threat to terrestrial ecosystems
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Ingested plastic transfers hazardous chemicals to fish and induces hepatic stress
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Nanoplastic Affects Growth of S. obliquus and Reproduction of D. magna
Besseling, E., Wang, B., Lürling, M., & Koelmans, A. A. (2014) · Environmental Science & Technology · doi:10.1021/es503001d · Cited by 1,138
Physical Adsorption of Charged Plastic Nanoparticles Affects Algal Photosynthesis
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Microplastics in mussels along the coastal waters of China
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Phytoplankton response to polystyrene microplastics: Perspective from an entire growth period
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Cited by
Chia, W. Y., Ying Tang, D. Y., Khoo, K. S., Kay Lup, A. N., & Chew, K. W. (2020) · Environmental Science and Ecotechnology · doi:10.1016/j.ese.2020.100065 · Cited by 477
Zhu, J., Cai, Y., Wakisaka, M., Yang, Z., Yin, Y., Fang, W., Xu, Y., Omura, T., Yu, R., & Zheng, A. L. T. (2023) · Science of The Total Environment · doi:10.1016/j.scitotenv.2023.165200 · Cited by 135
Metadata
- Authors
- Liu, G., Jiang, R., You, J., Muir, D. C. G., & Zeng, E. Y.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-12-06
- Volume
- 54
- Issue
- 3
- Pages
- 1782-1789
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2993954087
- Cited by
- 396
- References
- 31
- FWCI
- 8.47
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, G., Jiang, R., You, J., Muir, D. C. G., & Zeng, E. Y. (2020). Microplastic Impacts on Microalgae Growth: Effects of Size and Humic Acid. Environmental Science & Technology. https://doi.org/10.1021/acs.est.9b06187
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