Freshwater alga Raphidocelis subcapitata undergoes metabolomic changes in response to electrostatic adhesion by micrometer-sized nylon 6 particles
| Autor: | Kensuke Sakurai, Satomi Mizukami-Murata, Yuji Suzuki, Hiromasa Yamashita |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Polymers
Health Toxicology and Mutagenesis Nylon 12 Raphidocelis subcapitata Static Electricity Fresh Water 010501 environmental sciences 01 natural sciences Amino acid catabolic pathway γ-glutamyl cycle 03 medical and health sciences chemistry.chemical_compound Algae Polyethylene terephthalate Environmental Chemistry Caprolactam 030304 developmental biology 0105 earth and related environmental sciences chemistry.chemical_classification 0303 health sciences biology General Medicine Adhesion Polymer Polyethylene biology.organism_classification Pollution Nylon 6 chemistry Growth inhibition Biophysics Metabolomic analysis Powdered nylon 6 Electrostatic adhesion Plastics Water Pollutants Chemical Research Article |
| Zdroj: | Environmental Science and Pollution Research International |
| ISSN: | 1614-7499 0944-1344 |
| Popis: | Nylon powders are a type of microplastic (MP) used in personal care products such as cosmetics and sunscreens. To determine the effects of nylon polymers on freshwater microalgae, we investigated the effects of two types of micrometer-sized nylon polymers, i.e., powdered nylon 6 (Ny6-P) and nylon 12 (Ny12), and four other micrometer-sized MPs, i.e., low-density polyethylene, polyethylene terephthalate, polystyrene, and ultra-high-molecular-weight polyethylene, on the microalga Raphidocelis subcapitata. The results showed that Ny6-P inhibited R. subcapitata growth more than the other MPs; R. subcapitata growth was inhibited by 54.2% with 6.25 mg/L Ny6-P compared with the control. Ny6-P in the culture media adhered to R. subcapitata cells electrostatically, which may have disrupted growth and photosynthetic activity. Metabolomic analysis revealed that many metabolites related to the amino acid catabolic pathway and γ-glutamyl cycle were induced, which might trigger responses to avoid starvation and oxidative stress. Our study provides important information on the effects of Ny6-P on algae in freshwater environments. |
| Databáze: | OpenAIRE |
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