Allelopathic effect of pyrogallic acid on cyanobacterium Microcystis aeruginosa: The regulatory role of nitric oxide and its significance for controlling harmful algal blooms (HABs)

He, Yan; Zhou, Yunzi; Zhou, Zijian; He, Jinsong; Liu, Yan; Xiao, Yinlong; Long, Lulu; Deng, Ouping; Xiao, Hu; Shen, Fei; Deng, Shihuai; Luo, Ling

doi:10.1016/j.scitotenv.2022.159785

Cited by 12 publications

(1 citation statement)

References 28 publications

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“…The restoration of SMs is considered a crucial measure for the rehabilitation of shallow eutrophic lakes ( Liu et al., 2020 ; Li et al., 2021a ), as SMs display certain functional traits, that they use to stabilize the clear-water state ( Puijalon et al., 2011 ; Su et al., 2019 ; Rao et al., 2020 ). For example, SMs could suppress algal growth by competing for light and nutrients ( Lürling et al., 2006 ), producing algae-inhibiting allelochemicals to interfere the photosynthetic activities ( Zhu et al., 2010 ) and change other physiological and biochemical processes ( Zhu et al., 2021 ; He et al., 2023 ), and providing grazing zooplankton with a daytime refuge against fish predation ( Burks et al., 2001 ). In addition, SMs can facilitate nutrient uptake from the water column and sediment ( Sand-Jensen and Borum, 1991 ) and reduce sediment resuspension ( Horppila and Nurminen, 2003 ).…”

Section: Introductionmentioning

confidence: 99%

The combined effects of filter-feeding bivalves (Cristaria plicata) and submerged macrophytes (Hydrilla verticillate) on phytoplankton assemblages in nutrient-enriched freshwater mesocosms

Song

Wang

et al. 2023

Front. Plant Sci.

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Freshwater ecosystems are threatened by eutrophication, which causes persistent and harmful algal blooms. Filter-feeding bivalve mollusks and submerged macrophytes (SMs) alleviate the eutrophication effects by inhibiting phytoplankton biomass blooms. However, very little is known about whether and how the combined manipulation of filter-feeding bivalves and SMs control eutrophication and influence phytoplankton assemblages. Here, we performed a nutrient-enriched freshwater mesocosm experiment to assess the combined effects of the filter-feeding bivalve Cristaria plicata, a cockscomb pearl mussel, and the macrophyte Hydrilla verticillate on the biomass and composition of phytoplankton assemblages. We found that addition of C. plicata and H. verticillate decreased the water nutrient concentrations and suppressed overall phytoplankton biomass. Further, distinct differences in taxa between restoration and control treatments were observed and noticeably competitive exclusion of cyanobacteria in the restoration treatments occurred. An antagonistic interaction between filter-feeding bivalves and SMs was only detected for total cyanobacteria biomass demonstrating that a larger magnitude of SM restoration may override the effect of filter-feeding bivalves. Our results suggest that manipulation, through the addition of bivalves as grazers, associated with the restoration of SMs, is an efficient approach for reducing cyanobacterial blooms and alleviating eutrophication.

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