Nutrient potentiate the responses of plankton community structure and metabolites to cadmium: A microcosm study

Bai, Xue; Jiang, Yueming; Jiang, Zhendong; Zhu, Lin; Feng, Jianfeng

doi:10.1016/j.jhazmat.2022.128506

Cited by 23 publications

(9 citation statements)

References 77 publications

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“…The mechanisms underlying the Si-dependent toxicity of PS-MPs are not well understood. A wealth of studies have observed that nutrient conditions affect the accumulation of and sensitivity to pollutants in marine phytoplankton. , However, as cellular internalization is less likely for MPs, the mechanisms should be different from those pollutants that can be easily bound to cell surfaces and transferred into the cell.…”

Section: Resultsmentioning

confidence: 99%

Silicon Limitation Impairs the Tolerance of Marine Diatoms to Pristine Microplastics

Chen

Zhong

et al. 2023

Environ. Sci. Technol.

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Marine diatoms are currently facing increasing threats from microplastic (MP) pollution that is intertwined with the disturbed nutrient stoichiometry in seawater. The effects of nutrient imbalances such as silicon (Si) limitation on the interactions between diatoms and MPs remain poorly understood. In contrast to previous studies which mainly focused on MP toxicity, this study emphasizes how Si availability affects nano-scale interactions between pristine polystyrene MPs and diatom surfaces. Results showed that Si-starved cells were less tolerant to MP toxicity than the Si-enriched counterparts. Si limitation significantly changed the configuration and chemical composition of the perforated frustules, forming less negatively charged, more adhesive, and mechanically weaker cells. All of these changes facilitated the adsorption and hetero-aggregation between the diatom cells and MPs and compromised the diatoms' resistance to MP attack. Our study provides novel insights into the effects of pristine MPs in the marine environment under the context of dynamic nutrient conditions.

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Section: Resultsmentioning

confidence: 99%

Silicon Limitation Impairs the Tolerance of Marine Diatoms to Pristine Microplastics

Chen

Zhong

et al. 2023

Environ. Sci. Technol.

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“…Existing studies have confirmed that the partial least squares structural equation model (PLS-SEM) can express non-normal data, small sample sizes, and the use of formative indicators, 12 having been used to characterize the direct or indirect effects of the abiotic factors on the community. 13,14 For example, it was suggested that the climate characteristics directly impacted the properties of the vegetation body and soil, which drove the assembly of the bacterial communities. 15 The climatic condition reduced the direct effect of biomass variability, at the same time as increasing the indirect effect via a synergetic promoting effect on the soil conditions, species functional diversity, and the large arbor.…”

Section: Introductionmentioning

confidence: 99%

“…To ensure reasonable regulation, it is necessary to determine the contribution of abiotic factors driving succession and assembly of the MTD community. Existing studies have confirmed that the partial least squares structural equation model (PLS‐SEM) can express non‐normal data, small sample sizes, and the use of formative indicators, 12 having been used to characterize the direct or indirect effects of the abiotic factors on the community 13,14 . For example, it was suggested that the climate characteristics directly impacted the properties of the vegetation body and soil, which drove the assembly of the bacterial communities 15 .…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of biotic and abiotic factors drives microbiota succession and assembly in medium‐temperature Daqu

Pan

Huang

Zhang³

et al. 2023

J Sci Food Agric

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BACKGROUND The feasibility of fortification techniques to improve the quality of medium‐temperature Daqu (MTD) by inoculation functional isolates has been demonstrated. However, it is unclear what is the effect of inoculation on the controllability during the MTD fermentation process. Here, inoculated a single strain of Bacillus licheniformis, and the microbiota composed of Bacillus velezensis and Bacillus subtilis, were used to investigate the synergistic effect of biotic and abiotic factors on the succession and assembly of the MTD microbiota during the process. RESULTS The biotic factors promoted the proliferation of microorganisms that arrived early at the MTD. Subsequently, this alteration might inhibit microorganisms that colonized later in the MTD microecosystem, thereby assembling a different but more stable microbial community. Moreover, the biotic factors making bacterial community assembly were dominated by variable selection earlier, whereas the fungal community assembly was dominated mainly by extreme abiotic factors rather than biotic factors. Interestingly, fermentation temperature and moisture were significantly associated with the succession and assembly of the fortified MTD community. Meanwhile, the effect of the environmental variables on endogenous variables was also significant. Thus, changes in endogenous variables could be mitigated by adjusting environmental variables to regulate the process of MTD fermentation. CONCLUSION Biotic factors cause rapid changes of the microbiota during the MTD fermentation process, which could be controlled indirectly by regulating environmental variables. Meanwhile, a more stable MTD ecological network might be beneficial for enhancing the stability of MTD quality. © 2023 Society of Chemical Industry.

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“…Pollutants can affect community function by altering community structure [ 27 , 28 ]. In the assessment of ecological effects of pollutants, the response of community function is as important as that of community structure [ 29 ]. Chlorophyll fluorescence parameters and pH are in vivo probes and indirect physicochemical indicators to characterize the photosynthesis of phytoplankton community, respectively, and can be used to evaluate the impact of pollutants on community function [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the assessment of ecological effects of pollutants, the response of community function is as important as that of community structure [ 29 ]. Chlorophyll fluorescence parameters and pH are in vivo probes and indirect physicochemical indicators to characterize the photosynthesis of phytoplankton community, respectively, and can be used to evaluate the impact of pollutants on community function [ 29 ]. Species capable of forming harmful algal blooms can reduce the photosynthetic capacity of coexisting algae by releasing allelochemicals after 10 d of exposure [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Environmental Concentrations of Total Phosphorus on the Plankton Community Structure and Function in a Microcosm Study

Bai

Jiang

Fang

et al. 2022

IJERPH

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The excessive nutrients in freshwater have been proven to promote eutrophication and harmful algae blooms, which have become great threats to water quality and human health. To elucidate the responses of the plankton community structure and function to total phosphorus (TP) at environmental concentrations in the freshwater ecosystem, a microcosm study was implemented. The results showed that plankton communities were significantly affected by the TP concentration ≥ 0.1 mg/L treatments. In terms of community structure, TP promoted the growth of Cyanophyta. This effect was transmitted to the zooplankton community, resulting in the promotion of Cladocera growth from day 42. The community diversities of phytoplankton and zooplankton had been continuously inhibited by TP. The principal response curve (PRC) analysis results demonstrated that the species composition of phytoplankton and zooplankton community in TP enrichment treatments significantly (p ≤ 0.05) deviated from the control. For community function, TP resulted in the decline in phytoplankton photosynthesis. The chlorophyll fluorescence parameters were significantly inhibited when TP concentration reached 0.4 mg/L. In TP ≥ 0.1 mg/L treatments, the reductions in total phytoplankton abundances led to a continuous decrease in pH. This study can directly prove that the plankton community changes significantly when TP concentrations are greater than 0.1 mg/L and can help managers to establish specific nutrient management strategies for surface water.

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Nutrient potentiate the responses of plankton community structure and metabolites to cadmium: A microcosm study

Cited by 23 publications

References 77 publications

Silicon Limitation Impairs the Tolerance of Marine Diatoms to Pristine Microplastics

Silicon Limitation Impairs the Tolerance of Marine Diatoms to Pristine Microplastics

Synergistic effect of biotic and abiotic factors drives microbiota succession and assembly in medium‐temperature Daqu

Effects of Environmental Concentrations of Total Phosphorus on the Plankton Community Structure and Function in a Microcosm Study

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