Effects of Microplastics Exposure on the Acropora sp. Antioxidant, Immunization and Energy Metabolism Enzyme Activities

Xiao, Botao; Li, Dongdong; Liao, Baolin; Zheng, Huina; Yang, Xiaodong; Xie, Yongqi; Xie, Zuoming; Li, Chengyong

doi:10.3389/fmicb.2021.666100

Cited by 19 publications

(7 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, significantly positive correlations were observed between the microplastic concentration and E a in the coral host in July, as well as between the microplastic concentration and E c in the coral host in May and July, which manifested the upregulation of coral E a or E c via the elevation of accumulated microplastics in these months. Alterations in energetic metabolism in corals under microplastic threats were reported in a previous study, and a significant decrease in pyruvate kinase activity was observed in the coral Tubastrea aurea after being treated with microplastics for 24 h. 69 The enzyme activities of lactate dehydrogenase and glucose-6-phosphate dehydrogenase were also downregulated in the coral Acropora sp. upon microplastic treatment.…”

Section: Coral Tolerates Accumulated Microplastics By Regulating the ...supporting

confidence: 59%

“…The enzyme activities of lactate dehydrogenase and glucose-6-phosphate dehydrogenase were also downregulated in the coral Acropora sp. upon microplastic treatment . All of these findings collectively revealed that scleractinian corals could regulate energetic metabolism, such as the energy reserve and consumption processes, to maintain an energy balance with algal symbionts.…”

Section: Discussionmentioning

confidence: 68%

See 1 more Smart Citation

High Heterotrophic Plasticity of Massive Coral Porites pukoensis Contributes to Its Tolerance to Bioaccumulated Microplastics

Zhou

Tang

Cao

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

Scleractinian corals have been observed to be capable of accumulating microplastics from reef environments; however, the tolerant mechanism is poorly known. Here, we examined the response of Porites pukoensis to microplastic pollution by analyzing algal symbiont density, energetic metabolism, and caspase3 activities (representing the apoptosis level) in the coral–Symbiodiniaceae association. The environments of three fringing reef regions along the south coast of Sanya City, Hainan Province of China, were polluted by microplastics (for example, microplastic concentrations in the seawater ranged from 3.3 to 46.6 particles L–1), resulting in microplastic accumulation in P. pukoensis (0.4–2.4 particles cm–2). The accumulation of microplastics was negatively correlated to algal symbiont density in the corals but not to caspase3 activities in the two symbiotic partners, demonstrating that P. pukoensis could tolerate accumulated microplastics despite the decrease of algal symbiont density. Furthermore, results from the carbon stable isotope and cellular energy allocation assay indicated that P. pukoensis obtained energy availability (mainly as lipid reserves) using the switch between heterotrophy and autotrophy to maintain energy balance and cope with accumulated microplastics. Collectively, P. pukoensis achieved tolerance to microplastic pollution by maintaining energy availability, which was largely attributed to its high heterotrophic plasticity.

show abstract

Section: Coral Tolerates Accumulated Microplastics By Regulating the ...supporting

confidence: 59%

Section: Discussionmentioning

confidence: 68%

High Heterotrophic Plasticity of Massive Coral Porites pukoensis Contributes to Its Tolerance to Bioaccumulated Microplastics

Zhou

Tang

Cao

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Plastic particles have been found embedded within the skeletal matrix of both experimental and colonies collected from the wild [79,[88][89][90][91][92]. Two mechanisms by which the particles become trapped within the skeleton have been suggested.…”

Section: Association and Impact On Coral Reef Biotamentioning

confidence: 99%

“…The level of knowledge around the effect of MNPs on corals remains unclear, and further research is required. Many negative impacts have been identified and include host-symbiont relationship, photosynthetic efficiency, tissue necrosis, calcification rates, energy demand, reproductive success and overall fitness [41,79,80,82,83,86,87,89,[92][93][94][95][96][97][98][99]. Perturbation of photophysiology, bleaching and tissue necrosis have been observed in laboratorybased studies in response to exposure to MNPs [79,85,89,96] and may demonstrate coral species-specificity.…”

Section: Association and Impact On Coral Reef Biotamentioning

confidence: 99%

Microplastics: impacts on corals and other reef organisms

Pantos

2022

Emerging Topics in Life Sciences

View full text Add to dashboard Cite

Plastic pollution in a growing problem globally. In addition to the continuous flow of plastic particles to the environment from direct sources, and through the natural wear and tear of items, the plastics that are already there have the potential to breakdown further and therefore provide an immense source of plastic particles. With the continued rise in levels of plastic production, and consequently increasing levels entering our marine environments it is imperative that we understand its impacts. There is evidence microplastic and nanoplastic (MNP) pose a serious threat to all the world's marine ecosystems and biota, across all taxa and trophic levels, having individual- to ecosystem-level impacts, although these impacts are not fully understood. Microplastics (MPs; 0.1–5 mm) have been consistently found associated with the biota, water and sediments of all coral reefs studied, but due to limitations in the current techniques, a knowledge gap exists for the level of nanoplastic (NP; <1 µm). This is of particular concern as it is this size fraction that is thought to pose the greatest risk due to their ability to translocate into different organs and across cell membranes. Furthermore, few studies have examined the interactions of MNP exposure and other anthropogenic stressors such as ocean acidification and rising temperature. To support the decision-making required to protect these ecosystems, an advancement in standardised methods for the assessment of both MP and NPs is essential. This knowledge, and that of predicted levels can then be used to determine potential impacts more accurately.

show abstract

“…In addition, there was evidence that MPs had negative impacts on their symbiotic association (Okubo et al, 2020;Su et al, 2020). All the research suggested that MPs ingestion might have negative physiological (Reichert et al, 2018;Su et al, 2020;Liao et al, 2021;Tang et al, 2021;Xiao et al, 2021) and ecological (Lamb et al, 2018;Saliu et al, 2019;Soares et al, 2020) consequences for corals.…”

Section: Introductionmentioning

confidence: 99%

Abundance and Characteristics of Microplastics in Seawater and Corals From Reef Region of Sanya Bay, China

et al. 2021

View full text Add to dashboard Cite

Microplastics (MPs) contamination is widespread in the coral reef ecosystems leading to the exposure of both corals and other biotas. Knowledge gaps still exist concerning patterns in MPs abundance spatially. This work quantified the MPs abundance and characteristics in the seawater and corals in the Sanya Bay, Hainan Island. MPs abundance was detected in the seawater and coral samples ranging from 15.50 to 22.14 items L–1, and 0.01 to 3.60 items polyp–1, respectively. We found the predominant size and type of MPs in seawater and corals were smaller than 2 mm and fiber. Further analysis revealed that the characteristics of MPs in the corals were significantly different from those in the seawater environment, indicating that the MPs are selectively enriched in corals. Furthermore, the MPs particles ingested and retained in coral tissue may be related to the polyp size. This study shows that MPs are present in the whole coral reef region and the coral community structure would be potentially harmed by these contaminants.

show abstract

Effects of Microplastics Exposure on the Acropora sp. Antioxidant, Immunization and Energy Metabolism Enzyme Activities

Abstract: Graphical AbstractThe experiment flow chart of anti-inflammatory and analgesic effects of P. orientale extracts.

Cited by 19 publications

References 78 publications

High Heterotrophic Plasticity of Massive Coral Porites pukoensis Contributes to Its Tolerance to Bioaccumulated Microplastics

High Heterotrophic Plasticity of Massive Coral Porites pukoensis Contributes to Its Tolerance to Bioaccumulated Microplastics

Microplastics: impacts on corals and other reef organisms

Abundance and Characteristics of Microplastics in Seawater and Corals From Reef Region of Sanya Bay, China

Contact Info

Product

Resources

About