ACS Nano, Год журнала: 2024, Номер 18(43), С. 29820 - 29831
Опубликована: Окт. 19, 2024
Little information is known about the long-term effects of nanoplastics (NPs) in aquatic environments, especially under environmental-related scenarios. Herein, three differently charged NPs (nPS, nPS-NH2, and nPS-COOH) were exposed at an environmentally realistic concentration (10 μg/L) for 100 days to explore variation primary productivity (i.e., algae) ecosystems. Our results demonstrated that algae adapted all types by enhancing algal number (by 10.34-16.52%), chlorophyll a 11.28-17.65%), carbon-fixing enzyme activity 49.19-68.33%), which further confirmed exposure from natural water culturing experiments. Based on chloroplast biovolume individual level, only nPS caused differentiation into two heterogeneous subpopulations (54.92 vs 45.08%), while nPS-NH2 nPS-COOH did not cause population. Moreover, molecular adaptation mechanisms unraveled integrating epigenomics transcriptomics. Mean methylation rates nPS, significantly elevated. In addition, direction gene expression regulation via differentially methylated regions associated with genes when was distinct those nPS-NH2. highlight importance assessing ecotoxicity provide useful understanding effect
Язык: Английский