Effects and mechanisms of microplastic types on plant uptake of per- and polyfluorinated alkyl substances.

ABSTRACT: Microplastics (MPs) and per- and polyfluoroalkyl substances (PFASs) frequently co-occur in agricultural soils. MP type-dependent interactions with soil and plants can modify PFASs environmental behavior, complicating assessments of PFAS-related ecological and human exposure risks. This study investigated the effects of three MPs, namely polyvinyl chloride (PVC), polylactic acid (PLA), and tire wear particles (TWP), on the uptake of 10 PFASs by pak choi (Brassica chinensis L). PVC at 0.01%, 0.05%, and 0.5% significantly (p < 0.05) increased PFASs accumulation in shoots by 1.31-1.70 fold. The upregulation of aquaporin-related genes in pak choi co-exposed to PVC and PFASs represents a potential mechanism for the enhanced uptake and translocation of PFASs. In contrast, PLA did no

SUBMITTER: Gu Q 

PROVIDER: S-EPMC12907065 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature