Effects of atrazine and diuron on life parameters, antioxidant response, and multixenobiotic resistance in non-targeted marine zooplankton

Shim, Kyu-Young; Sukumaran, Vrinda; Yeo, In-Cheol; Shin, Heesang; Jeong, Chang‐Bum

doi:10.1016/j.cbpc.2022.109378

Cited by 3 publications

(6 citation statements)

References 41 publications

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“…This oxidative stress triggered by diuron plays a pivotal role in its toxicity, initiating processes such as lipid peroxidation, as shown in the MDA levels measured in this species. The significant increase in ROS and MDA content, as observed in the rotifer Brachionus koreanus exposed to diuron concentrations of 1, 5, 10, and 20 mg L −1 for 24 h, supports our findings regarding the similar elevation of these parameters [26].…”

Section: Discussionsupporting

confidence: 89%

“…Regarding generational sensitivity, the F2 generation of T. japonicus exhibited heightened susceptibility to diuron compared to the parent generation (F0). In the rotifer B. koreanus, exposure to 20 mg L −1 diuron led to a significant survival rate decrease over eight days [26]. Remarkably, the F1 and F2 generations exposed to this NOEC value showed significant hindrance in body length and noticeable developmental delays from nauplius to adults in this species.…”

Section: Discussionmentioning

confidence: 81%

“…For example, in zebrafish embryos and larvae, diuron exposure significantly increased the mRNA expression of gpx1a and gsr, while the expression of cat showed fluctuations over the exposure period [25]. Similarly, exposure to diuron concentrations of 5, 10, and 20 mg L −1 for 24 h led to increased enzymatic activities of GST, CAT, SOD, and GPx in the rotifer B. koreanus [26]. GST and GPx enzymes were found to be strongly involved in the biotransformation of diuron in the Nile tilapia Orechromis niloticus [58].…”

Section: Discussionmentioning

confidence: 97%

“…The enzyme acetylcholinesterase (AChE) is responsible for breaking down ACh into choline and acetic acid within the synaptic cleft, thus influencing motor function [21]. Several studies have provided evidence that diuron exposure can induce oxidative stress [22][23][24][25][26]. Oxidative stress arises from an imbalance between reactive oxygen species (ROS) levels and antioxidants [27].…”

Section: Introductionmentioning

confidence: 99%

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Acute and Chronic Effects of the Antifouling Booster Biocide Diuron on the Harpacticoid Copepod Tigriopus japonicus Revealed through Multi-Biomarker Determination

Yun,

Kim,

Kim

et al. 2023

JMSE

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Diuron, an additive biocide in antifouling paints, is widely employed to curtail the attachment of organisms on submerged surfaces in aquatic structures. Despite the detection of diuron in aquatic ecosystems, information regarding its acute and chronic impacts on aquatic invertebrates, particularly planktonic crustaceans, remains limited. In this study, we analyzed the acute (24 h) and chronic (12 days exposure across three generations) effects of different concentrations of diuron (1/10 of the no observed effect concentration (NOEC), the NOEC, and 1/10 of the lethal concentration 50% (LC50), derived from the 24 h acute toxicity value of 1152 μg L−1) on the harpacticoid copepod Tigriopus japonicus. The acute exposure experiment indicated that the 1/10 LC50 value of diuron significantly reduced the copepod’s feeding rate and acetylcholinesterase activity. In response to the 1/10 LC50 value, the intracellular reactive oxygen species were elevated alongside increased malondialdehyde levels, while the glutathione content was depleted. The enzymatic activities of glutathione S-transferase, catalase, and superoxide dismutase were significantly enhanced by the 1/10 LC50 value, suggesting a proactive role of the antioxidant defense system against oxidative stress. Conversely, the activities of glutathione peroxidase and glutathione reductase enzymes were increased at the NOEC value, while their values were reduced by the 1/10 LC50 value. Chronic exposure to 1/10 NOEC and NOEC values revealed the adverse multigenerational effects of diuron. The second generation exhibited the most sensitivity to diuron, with the NOEC value notably reducing survival rate, body length, nauplius-to-adult development, neonates per brood count, and extending the reproduction period. Taken together, our findings underscore that even sublethal diuron levels can adversely impact copepod populations across generations through intergenerational toxicity.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Acute and Chronic Effects of the Antifouling Booster Biocide Diuron on the Harpacticoid Copepod Tigriopus japonicus Revealed through Multi-Biomarker Determination

Yun,

Kim,

Kim

et al. 2023

JMSE

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“…The effect of atrazine on survival index at 24 °C seemed less pronounced, though there was no statistically significant interaction between temperature and atrazine. The mode of action of atrazine on non-target species has not been extensively tested, but a study on rotifers by Shim et al [ 84 ] showed atrazine to increase antioxidant activity at similar concentrations as used in our study. Since temperature usually increases metabolic activities, the 24 °C treatment might have ameliorated the effects of atrazine-related oxidative stress sufficiently for individuals of C. striatum to stay and grow rather than to try and disperse.…”

Section: Discussionmentioning

confidence: 71%

Intraspecific demographic and trait responses to environmental change drivers are linked in two species of ciliate

de Bruin,

De Laender,

Jadoul

et al. 2024

BMC Ecol Evo

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Background Over the past decade, theory and observations have suggested intraspecific variation, trait-based differences within species, as a buffer against biodiversity loss from multiple environmental changes. This buffering effect can only occur when different populations of the same species respond differently to environmental change. More specifically, variation of demographic responses fosters buffering of demography, while variation of trait responses fosters buffering of functioning. Understanding how both responses are related is important for predicting biodiversity loss and its consequences. In this study, we aimed to empirically assess whether population-level trait responses to multiple environmental change drivers are related to the demographic response to these drivers. To this end, we measured demographic and trait responses in microcosm experiments with two species of ciliated protists. For three clonal strains of each species, we measured responses to two environmental change drivers (climate change and pollution) and their combination. We also examined if relationships between demographic and trait responses existed across treatments and strains. Results We found different demographic responses across strains of the same species but hardly any interactive effects between the two environmental change drivers. Also, trait responses (summarized in a survival strategy index) varied among strains within a species, again with no driver interactions. Demographic and trait responses were related across all strains of both species tested in this study: Increasing intrinsic growth and self-limitation were associated with a shift in survival strategy from sit-and-wait towards flee. Conclusions Our results support the existence of a link between a population’s demographic and trait responses to environmental change drivers in two species of ciliate. Future work could dive deeper into the specifics of phenotypical trait values, and changes therein, related to specific life strategies in different species of ciliate and other zooplankton grazers.

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Benthic macroinvertebrates in rivers of agricultural lands in Argentina: the functional diversity response to environmental stress

Ávalos,

Saigo,

Licursi

2024

Mar. Freshw. Res.

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Context The rapid intensification of human impacts on rivers is a major threat for the provision of key ecosystem services for societies. In this context, many of these services rely on the ecological functions performed by macroinvertebrates. Therefore, understanding the relationship between human impacts and the functional diversity of macroinvertebrates is urgent. Aims We aimed at analysing the relationship between human impact and the functional diversity of macroinvertebrates in rivers of agricultural lands of Argentina. Methods We sampled seven rivers of central Argentina during three seasons (spring, autumn and winter). In each site, we measured pesticides, metals, chlorophyll-a, nutrients and the taxonomic and functional diversity of macroinvertebrates. We summarised the environmental information using principal-component analysis and assessed the relationship between the assemblage metrics with the first three principal components. Key results We found that functional metrics presented a negative relationship with the human-impact gradient in the three seasons. However, taxonomic metrics showed less sensitivity. Conclusion The functional diversity of macroinvertebrates, but not the taxonomic diversity, decreases with increasing human impacts on rivers. Implications Our result implies that functional metrics should be included in environmental monitoring in agricultural lands of Argentina.

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Effects of atrazine and diuron on life parameters, antioxidant response, and multixenobiotic resistance in non-targeted marine zooplankton

Cited by 3 publications

References 41 publications

Acute and Chronic Effects of the Antifouling Booster Biocide Diuron on the Harpacticoid Copepod Tigriopus japonicus Revealed through Multi-Biomarker Determination

Acute and Chronic Effects of the Antifouling Booster Biocide Diuron on the Harpacticoid Copepod Tigriopus japonicus Revealed through Multi-Biomarker Determination

Intraspecific demographic and trait responses to environmental change drivers are linked in two species of ciliate

Benthic macroinvertebrates in rivers of agricultural lands in Argentina: the functional diversity response to environmental stress

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