
Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(46), P. 20553 - 20565
Published: Nov. 6, 2024
The unpredictable biodegradation of fluorotelomer (FT)-based per- and polyfluoroalkyl substances (PFAS) causes complicated risk management PFAS-impacted sites. Here, we have successfully used redundancy analysis to link FT-based precursor key microbes genes soil microbiomes shaped by different classes carbon sources: alcohols (C2–C4), alkanes (C6 C8), an aromatic compound (phenol), or a hydrocarbon surfactant (cocamidopropyl betaine [CPB]). All the enrichments defluorinated (n:2 FtOH; n = 4, 6, 8) effectively grew on 6:2 sulfonate (6:2 FtS) as sulfur source. butanol-enriched culture showed highest defluorination extent for FtOHs FtS due high microbial diversity abundance desulfonating defluorinating genes. CPB-enriched accumulated more 5:3 carboxylic acid, suggesting unique roles Variovorax Pseudomonas. Enhanced FtOH was observed synergism between two with source except those phenol- cultures. While sulfonamidoalkyl not degraded, trace levels amines were detected. identified species involved in desulfonation, defluorination, metabolism are promising biomarkers assessing degradation at
Language: Английский