标题: Micro/nano-plastics and microalgae in aquatic environment: Influence factor, interaction, and molecular mechanisms

作者: Yang, WF (Yang, Wenfeng); Gao, P (Gao, Pan); Ye, ZD (Ye, Zongda); Chen, FN (Chen, Funing); Zhu, LD (Zhu, Liandong)

来源出版物: SCIENCE OF THE TOTAL ENVIRONMENT  卷: 934  文献号: 173218  DOI: 10.1016/j.scitotenv.2024.173218  Early Access Date: MAY 2024  Published Date: 2024 JUL 15  

摘要: Micro/nano-plastics, as emerging persistent pollutant, are frequently detected in aquatic environments together with other environmental pollutants. Microalgae are the major primary producers and bear an important responsibility for maintaining the balance of aquatic ecosystems. Numerous studies have been conducted on the influence of micro/nano-plastics on the growth, photosynthesis, oxidative stress, gene expression and metabolites of microalgae in laboratory studies. However, it is difficult to comprehensively evaluate the toxic effects of micro/nano-plastics on microalgae due to different experimental designs. Moreover, there is a lack of effective analysis of the aforementioned multi-omics data and reports on shared biological patterns. Therefore, the purpose of this review is to compare the acute, chronic, pulsed, and combined effect of micro/nano-plastics on microalgae and explore hidden rules in the molecular mechanisms of the interaction between them. Results showed that the effect of micro/nano-plastics on microalgae was related to exposure mode, exposure duration, exposure size, concentration, and type of micro/nano-plastics. Meanwhile, the phenomenon of poisoning and detoxification between micro/nano-plastics and microalgae was found. The inhibitory mechanism of micro/ nano-plastics on algal growth was due to the micro/nano-plastics affected the photosynthesis, oxidative phosphorylation, and ribosome pathways of algal cells. This brought the disruption of the functions of chloroplasts, mitochondria, and ribosome, as well as impacted on energy metabolism and translation pathways, eventually leading to impairment of cell function. Besides, algae resisted this inhibitory effect by regulating the alanine, aspartate, and glutamate metabolism and purine metabolism pathways, thereby increasing the chlorophyll synthesis, inhibiting the increase of reactive oxygen species, delaying the process of lipid peroxidation, balancing the osmotic pressure of cell membrane.

作者关键词: Micro/nano-plastics; Microalgae; Toxication; Detoxification; Molecular mechanism

地址: [Yang, Wenfeng; Zhu, Liandong] Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm Bi, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Hubei, Peoples R China.

[Gao, Pan] Huazhong Univ Sci & Technol, Minist Educ, Coll Life Sci & Technol, Key Lab Mol Biophys, Wuhan 430074, Hubei, Peoples R China.

[Ye, Zongda; Chen, Funing] Minist Nat Resources, Tech Innovat Ctr Mine Geol Environm Restorat Engn, Nanning 530028, Guangxi, Peoples R China.

[Ye, Zongda; Chen, Funing] Nat Resources Ecol Restorat Ctr Guangxi Zhuang Aut, Nanning 530029, Guangxi, Peoples R China.

通讯作者地址: Zhu, LD (通讯作者)，Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm Bi, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Hubei, Peoples R China.

电子邮件地址: ldzhu@whu.edu.cn

影响因子：8.2