Microplastic interactions with freshwater microalgae: Hetero-aggregation and changes in plastic density appear strongly dependent on polymer type

Lagarde, Fabienne; Olivier, Ophélie; Zanella, Marie; Daniel, Philippe; Hiard, Sophie; Caruso, Aurore

doi:10.1016/j.envpol.2016.05.006

Cited by 571 publications

(271 citation statements)

References 45 publications

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“…Biofouling of plastics has been reported for freshwater samples [83,84] and also is a well-researched phenomenon in marine waters [57,58,62,84]. Plastic debris of all sizes and densities will be fouled and colonized by microbes, forming biofilms, which can lead to significant changes in particle buoyancy.…”

Section: Plastic Debris: Properties and Processes Relevant For Fate Mmentioning

confidence: 99%

See 1 more Smart Citation

Modeling the Fate and Transport of Plastic Debris in Freshwaters: Review and Guidance

Kooi

Besseling

Kroeze

et al. 2017

The Handbook of Environmental Chemistry

109

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Contamination with plastic debris has been recognized as one of today's major environmental quality problems. Because most of the sources are land based, concerns are increasingly focused on the freshwater and terrestrial environment. Fate and transport models for plastic debris can complement information from measurements and will play an important role in the prospective risk assessment of plastic debris. We review the present knowledge with respect to fate and transport modeling of plastic debris in freshwater catchment areas, focusing especially on nano-and microplastics. Starting with a brief overview of theory and models for nonplastic particles, we discuss plastic-specific properties, processes, and existing mass-balance-, multimedia-, and spatiotemporally explicit fate models. We find that generally many theoretical and conceptual approaches from This chapter has been externally peer reviewed.The original version of this chapter was revised. An erratum to this chapter can be found at DOI 10.1007/978-3-319-61615-5_14. models developed earlier for other types of (low density) particles apply also to plastic debris. A unique feature of plastic debris, however, is its combination of high persistence, low density, and extremely wide size distribution, ranging from the nanometer to the >cm scale. This causes the system behavior of plastic debris to show a far wider variety than most other materials or chemicals. We provide recommendations for further development of these models and implications and guidance for how fate and transport models can be used in a framework for the tiered risk assessment of plastic debris.

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Section: Plastic Debris: Properties and Processes Relevant For Fate Mmentioning

confidence: 99%

“…The conclusions of both studies depend on the modeled scenario's and parameters' variability. Also laboratory experiments have shown that processes like biofouling and aggregation [57,62,84] and particle properties like density, size, and shape [52,55] significantly influence particle fate.…”

Section: Modeling the Transport Of Plastic Debris In The Dommel Rivermentioning

confidence: 99%

Modeling the Fate and Transport of Plastic Debris in Freshwaters: Review and Guidance

Kooi

Besseling

Kroeze

et al. 2017

The Handbook of Environmental Chemistry

109

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“…After exposed to polypropylene (PP) microplastic leachate, the brown mussels showed embryo‐toxicity and delayed larval growth . When studied on a molecular level, MPs prefer to interfere with the synthesis of rhamnose and xylose of exopolysaccharide biosynthesis pathway . In invertebrates, MPs destroyed the filtration procedure which resulted in the reduction of food consumption and casualty in crustaceans .…”

Section: Discussionmentioning

confidence: 99%

“…48 When studied on a molecular level, MPs prefer to interfere with the synthesis of rhamnose and xylose of exopolysaccharide biosynthesis pathway. 49 In invertebrates, MPs destroyed the filtration procedure which resulted in the reduction of food consumption and casualty in crustaceans. 10 In addition, these tiny polystyrene microbeads disrupted detoxification system, and promote the transcription of genes involving basic physiological processes, such as molecular basis of cell cycle and growth control, cellular differentiation, apoptosis, and oxidative stress.…”

Section: Validation By Quantitative Rt-qpcr and Elisamentioning

confidence: 99%

Effects of polystyrene microbeads on cytotoxicity and transcriptomic profiles in human Caco‐2 cells

Tian

et al. 2019

Environmental Toxicology

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Microplastics (MPs) pollution is a global paradigm that raises concern in relation to environment and human health. In order to investigate the molecular toxicity mechanisms of MPs, transcriptomic analyses were performed on in vitro Caco‐2 cell model. After observing that polystyrene microplastics (PS‐MPs) decreased cell viability in a dose‐dependent manner, the responsible genes and involved pathways that might make contribution to PS‐MBs‐induced toxicity to Caco‐2 cells were identified with Illumina RNA seq. A total of 442 genes including, 210 up‐regulated ones and 232 down‐regulated ones, showed differential expression after treatment by PS‐MPs with a concentration of 12.5 mg L−1 or 50.0 mg L−1 for 24 hours. Gene Ontology (GO) annotation enriched unigenes can be grouped into three separated clusters: cellular component (CC), biological process (BP), and molecular function (MF). The dominate pathways related to NF‐κB, MAPK signaling, cytokine‐cytokine receptor interaction, and toll‐like receptor were strongly influenced by PS‐MBs. These pathways are involved in modulating cell inflammatory and proliferation. The qPCR were applied to investigate the transcriptional level of five proliferation related genes (Ras, ERK, MER, CDK4, Cyclin D1) and four inflammation related genes (TRPV1, iNOS, IL‐1β, IL‐8), and the results were consistent with RNA‐seq data. This study has provided new insight into the understanding of the toxicity effects of PS‐MBs‐induced intestinal inflammatory diseases.

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“…These aggregates consist of particulate matter (MPs as well as other suspended solids) and microbes (e.g., protozoans, algae) with biopolymers acting as binders. A laboratory study by Lagarde et al [89] confirmed polymer-dependent (PP vs. HDPE) aggregations with the algae Chlamydomonas reinhardtii. While rapid colonization of the surfaces of both HDPE and PP was observed, expanding hetero-aggregates consisting of polymer particles, algae cells, and exopolysaccharides were solely formed by PP.…”

Section: Biofilm-related Impactsmentioning

confidence: 99%

Interactions of Microplastics with Freshwater Biota

Scherer

Weber

Lambert

et al. 2017

The Handbook of Environmental Chemistry

106

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The ubiquitous detection of microplastics in aquatic ecosystems promotes the concern for adverse impacts on freshwater ecosystems. The wide variety of material types, sizes, shapes, and physicochemical properties renders interactions with biota via multiple pathways probable.So far, our knowledge about the uptake and biological effects of microplastics comes from laboratory studies, applying simplified exposure regimes (e.g., one polymer and size, spherical shape, high concentrations) often with limited environmental relevance. However, the available data illustrates species-and materialrelated interactions and highlights that microplastics represent a multifaceted stressor. Particle-related toxicities will be driven by polymer type, size, and shape. Chemical toxicity is driven by the adsorption-desorption kinetics of additives and pollutants. In addition, microbial colonization, the formation of heteroaggregates, and the evolutionary adaptations of the biological receptor further increase the complexity of microplastics as stressors. Therefore, the aim of this chapter is to synthesize and critically revisit these aspects based on the state of the science in freshwater research. Where unavailable we supplement this with data on marine biota. This provides an insight into the direction of future research.In this regard, the challenge is to understand the complex interactions of biota and plastic materials and to identify the toxicologically most relevant characteristics of the plethora of microplastics. Importantly, as the direct biological impacts of This chapter has been externally peer reviewed.

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Microplastic interactions with freshwater microalgae: Hetero-aggregation and changes in plastic density appear strongly dependent on polymer type

Cited by 571 publications

References 45 publications

Modeling the Fate and Transport of Plastic Debris in Freshwaters: Review and Guidance

Modeling the Fate and Transport of Plastic Debris in Freshwaters: Review and Guidance

Effects of polystyrene microbeads on cytotoxicity and transcriptomic profiles in human Caco‐2 cells

Interactions of Microplastics with Freshwater Biota

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