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Aquatic plant allelochemicals inhibit the growth of microalgae and cyanobacteria in aquatic environments

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Abstract

Excess nitrogen and phosphorus nutrients in the aquatic environment result in the growth of algal cells and water eutrophication, which adversely affect the aquatic environment and human health. Therefore, discovering a safe and efficient algae suppression method is necessary to ensure the ecological safety of water. Recently, the allelopathic effects of aquatic plants on algae have attracted extensive attention from researchers. This review demonstrates the current research hotspot of allelopathic algal inhibition in aquatic plants and lists the common aquatic plant species and allelochemicals. In addition, the inhibition mechanism of allelochemicals from aquatic plants on algae is systematically discussed. Moreover, the key factors affecting the inhibition of allelopathy in algae, such as pH, temperature, algal cell density, and concentration of allelochemicals, are summarized. The present utilization modes of allelochemicals on algae are also presented. Finally, the problems existing in the study of allelopathic algal inhibition of aquatic plants are highlighted, and suggestions for further research are proposed.

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Funding

This work was supported by the Postgraduate Research & Practice Innovation Program of Jiangsu Province (SJCX22_1571).

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H.L., the corresponding author, developed the idea, as well as contributed to the sourcing of relevant literature and critically revised the work. T.W. performed the literature search and data analysis and finally wrote it.

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Correspondence to Haicheng Liu.

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The authors declare no competing interests.

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Responsible Editor: Thomas Hein

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Wang, ., Liu, H. Aquatic plant allelochemicals inhibit the growth of microalgae and cyanobacteria in aquatic environments. Environ Sci Pollut Res 30, 105084–105098 (2023). https://doi.org/10.1007/s11356-023-29994-5

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  • DOI: https://doi.org/10.1007/s11356-023-29994-5

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