Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia

Wang, Xin; Zhang, Qianqian; Zhang, Tianyu; Shao, Shengyuan; Wang, Qing; Dong, Zhibao; Zhao, Jianmin

doi:10.1016/j.marenvres.2022.105849

Cited by 12 publications

(3 citation statements)

References 92 publications

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“…Fluorescence intensity measurements were obtained each time the exposure solution was prepared and replaced to ensure the accurate concentration of the exposure solution throughout the study. A period of 168 h (exposure to 7 days) is generally acknowledged as PS-NPs significantly. , Every exposure solution was prepared 24 h beforehand, and the cultivation conditions maintained during the exposure phase were identical to those during the acclimation period, with no feeding involved. Half of the exposure solution in each aquarium was substituted on a daily basis.…”

Section: Methodsmentioning

confidence: 99%

“…A period of 168 h (exposure to 7 days) is generally acknowledged as PS-NPs significantly. 24,25 Every exposure solution was prepared 24 h beforehand, and the cultivation conditions maintained during the exposure phase were identical to those during the acclimation period, with no feeding involved. Half of the exposure solution in each aquarium was substituted on a daily basis.…”

Section: Chemicals and Domestication Of M Hongkongensismentioning

confidence: 99%

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Environmental and Sublethal Concentrations of Polystyrene Nanoplastics Induced Antioxidant System, Transcriptomic Responses, and Disturbed Gut Microbiota in Oyster Magallana Hongkongensis

Wang,

Junaid,

Imran

et al. 2024

J. Agric. Food Chem.

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Nanoplastics (NPs) are emerging contaminants having persistent nature, diverse ecological impacts, and potential food safety risks. Here, we examined the ecotoxicity of 80 nm polystyrene nanoplastics (PS-NPs) at environmentally relevant concentrations (ERCs, 10 and 100 μg/L), and sublethal concentrations (SLCs, 500 and 2500 μg/L) in Magallana hongkongensis. Results showed that SLCs significantly (p < 0.05) increased superoxide dismutase (SOD), catalase (CAT), and alkaline phosphatase (AKP) activities and altered tnfα, cat, gst, sod, and se-gpx genetic expressions. Further, PS-NP exposure at both levels reduced beneficial bacteria and increased potentially pathogenic bacteria in the gut. In transcriptomic analysis, 5118 and 4180 differentially expressed genes (DEGs) were identified at ERCs, while 5665 and 4817 DEGs were found at SLCs, respectively. Upregulated DEGs enriched lysosomes, ABC transporters, and apoptosis pathways, while downregulated DEGs enriched ribosomal pathways. Overall, ERCs significantly altered gut microbiota and transcriptomic responses, while SLCs, in addition, also impacted the antioxidant and immune systems.

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Section: Methodsmentioning

confidence: 99%

Section: Chemicals and Domestication Of M Hongkongensismentioning

confidence: 99%

Environmental and Sublethal Concentrations of Polystyrene Nanoplastics Induced Antioxidant System, Transcriptomic Responses, and Disturbed Gut Microbiota in Oyster Magallana Hongkongensis

Wang,

Junaid,

Imran

et al. 2024

J. Agric. Food Chem.

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“…Oxidative stress is the common response caused by NPs in mollusks, such as Mytilus spp. ( Cole et al, 2020 ), C. fluminea ( Li et al, 2020 ), Mytilus galloprovincialis ( Wang et al, 2023 ), Crassostrea virginica ( Lebordais et al, 2021 ), and Monodonta labio ( Li and Han, 2022 ). Besides, NPs were also found to trigger oxidative stress in Procambarus clarkia , Daphnia pulex and Ciona robusta via transcriptome analysis ( Liu et al, 2021a ; Capanni et al, 2021 ; Eliso et al, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic analysis of oxidative stress mechanisms induced by acute nanoplastic exposure in Sepia esculenta larvae

Liu

Yang

2023

Front. Physiol.

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Nanoplastics (NPs), as a new type of pollutant with a size small than 1 μm, are ubiquitous and harmful to organisms. There has been an increasing amount of research concerning the effects of NPs on organisms over recent years, especially on aquatic animals. However, there is a limited study on the impact of NPs on mollusk cephalopods. In this research, Sepia esculenta, belonging to Cephalopoda, Coleoidea, Sepioidea, was selected to explore the effects caused by NPs exposure. The S. esculenta larvae were exposed to polystyrene NPs (PS-NPs) with diameter 50 nm (100 mg/L) for 4 h. The detection of oxidative stress biomarkers displayed an obvious increase in SOD (superoxide dismutase) activity and MDA (malondialdehyde) level. Then, RNA-Seq was performed to explore the oxidative stress response at mRNA level. The transcriptome analysis demonstrated that the expression of 2,570 genes was affected by PS-NPs. Besides, the signaling pathways of ribosome, ribosome biogenesis in eukaryotes, proteasome, and MAPK were enriched. This study not only provides novel references for understanding the mechanisms of oxidative stress response induced by NPs, but also reminds us to follow with interest the influence of acute exposure to NPs.

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Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia

Cited by 12 publications

References 92 publications

Environmental and Sublethal Concentrations of Polystyrene Nanoplastics Induced Antioxidant System, Transcriptomic Responses, and Disturbed Gut Microbiota in Oyster Magallana Hongkongensis

Environmental and Sublethal Concentrations of Polystyrene Nanoplastics Induced Antioxidant System, Transcriptomic Responses, and Disturbed Gut Microbiota in Oyster Magallana Hongkongensis

Transcriptomic analysis of oxidative stress mechanisms induced by acute nanoplastic exposure in Sepia esculenta larvae

Acute exposure to polystyrene nanoplastics induced oxidative stress in Sepia esculenta Larvae

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