Environmental science and engineering, Год журнала: 2024, Номер unknown, С. 163 - 188
Опубликована: Дек. 31, 2024
Язык: Английский
Frontiers in Materials, Год журнала: 2024, Номер 11
Опубликована: Июль 15, 2024
The escalating accumulation of toxic wastes and biowastes constitutes a critical environmental crisis that demands immediate effective solutions. Traditional waste treatment methods, predominantly chemical physical, are increasingly viewed as unsustainable, burdened by high operational costs the risk generating secondary pollutants. Against this backdrop, bioremediation emerges crucial sustainable alternative, utilizing natural detoxifying capabilities microorganisms. This review article focuses on use fungal bacterial strategies in bioremediation, emphasizing their vital role degradation, stabilization, or detoxification We provide an in-depth analysis mechanisms which fungi bacteria break down various contaminants, presenting current snapshot field’s state knowledge. highlights recent innovative advancements improve effectiveness expand applicability technologies. Moreover, it discusses practical challenges scaling these solutions to meet global needs suggests directions for future research implementation. synthesis not only underscores significance microbial addressing pressing problems but also acts call action continued innovation management hazardous wastes.
Язык: Английский
Процитировано
12
Chemosphere, Год журнала: 2025, Номер 374, С. 144221 - 144221
Опубликована: Фев. 21, 2025
Язык: Английский
Процитировано
0
Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Март 7, 2025
Purified alkane monooxygenase (AlkB) from Fontimonas thermophila (FtAlkB) catalyzes the defluorination of 1-fluorooctane, producing octanal, which is partially reduced under reaction conditions to generate 1-octanol. This occurs preferentially at monofluorinated methyl group, with only a minor amount oxidation nonfluorinated end molecule. The dehalogenation chemistry specific as neither 1-chlorooctane or 1-bromooctane are dehalogenated an appreciable extent. Furthermore, P. putida cells containing structurally related AlkB (PpAlkB) along full set genes required for metabolism, utilize 1-fluorooctane their sole source carbon growth rates comparable those grown octane.
Язык: Английский
Процитировано
0
Environmental Microbiology, Год журнала: 2025, Номер 27(4)
Опубликована: Апрель 1, 2025
Per- and polyfluoroalkyl substances (PFAS) exhibit a widespread distribution across diverse global ecosystems throughout their lifecycle, posing substantial risks to human health. The persistence of PFAS makes biodegradation challenging yet environmentally friendly solution for treatment. In the authors' previous study, bacterial consortium capable reducing perfluorooctane sulfonate (PFOS) was successfully enriched from activated sludge. This study aimed investigate array genes associated with PFOS reduction via biosorption biotransformation elucidate metabolic pathways. Two metagenome-assembled genomes (MAGs) based on 16S rRNA sequences that share 99.86% 97.88% similarity Hyphomicrobium denitrificans Paracoccus yeei, respectively were obtained. They found contain several encoding enzymes potentially regulate biofilm formation facilitate desulfonation defluorination processes biotransformation. Transcriptomic analysis demonstrated high expression levels these genes, including alkanesulfonate monooxygenase, catechol dioxygenase, (S)-2-haloacid dehalogenase putative cytochrome P450, suggesting involvement in supports presence candidate metabolites detected study. These findings emphasise significant potential consortia crucial role played by facilitating remediation contaminants.
Язык: Английский
Процитировано
0
Trends in Biochemical Sciences, Год журнала: 2024, Номер unknown
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
3
Water Research, Год журнала: 2024, Номер 271, С. 122888 - 122888
Опубликована: Ноя. 29, 2024
Per- and polyfluoroalkyl substances (PFAS) with stable carbon-fluorine bonds are used in a wide range of industrial commercial applications. Due to their extreme environmental persistence, PFAS have the potential bioaccumulate, cause adverse effects, present challenges regarding remediation. Recently, microbial enzymatic reactions for sustainable degradation gained attention from researchers, although biological decomposition remains challenging. Surprisingly, laccases, multi-copper oxidases produced by various organisms, showed degradation. Mediators play key roles initiating laccase induced defluorination reactions. The laccase-catalyzed relatively slower than normal biocatalytic low activity native laccases constrains capacity complete defluorination. With redox narrow substrate scope, an innovative remediation strategy must be taken accelerate this reaction. In review we summarized status, challenges, future perspectives knowledge laccase-based molecular basis reaction mechanisms overviewed study could inform applications
Язык: Английский
Процитировано
2
Environmental Research, Год журнала: 2024, Номер unknown, С. 120650 - 120650
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
0
Toxics, Год журнала: 2024, Номер 12(12), С. 930 - 930
Опубликована: Дек. 22, 2024
Bacteria of the genus Pseudomonas are most studied microorganisms that biodegrade persistent perfluoroorganic pollutants, and research their application for remediation environmental sites using biotechnological approaches remains relevant. The aim this study was to investigate ability a known destructor perfluorooctane sulfonic acid from accelerate enhance destruction long-chain perfluorocarboxylic acids (PFCAs), specifically perfluorooctanoic perfluorononanoic acid, in water soil association with strain P. mosselii 5(3), which has previously confirmed genetic potential degrading PFCAs. complete genome (5.86 million base pairs) 2,4-D, probably belonging new species Pseudomonas, sequenced, assembled, analyzed. genomes both strains contain genes involved defluorination fluorinated compounds, including haloacetate dehalogenase H-1 (dehH1) haloalkane (dhaA). 2,4-D also multicomponent enzyme system consisting dioxygenase component, an electron carrier, 2-halobenzoate 1,2-dioxygenase (CbdA) preference fluorides. able defluorinate PFCAs aqueous cultivation within 7 days, them as sole source carbon energy converting perfluorheptanoic acid. It assisted 5(3) convert perfluoropentanoic accelerating process by 24 h. In model experiment bioaugmentation artificially contaminated soil, degradation pseudomonads occurred faster deeper than individual strains, achieving degree biodestruction 75% over 60 main metabolite. These results great importance development methods biological recultivation organic pollutants protection understanding fundamental mechanisms bacterial interactions these compounds.
Язык: Английский
Процитировано
0
Frontiers in Microbiology, Год журнала: 2024, Номер 15
Опубликована: Дек. 24, 2024
Organohalide-respiring bacteria (OHRB) play a pivotal role in the transformation of organohalogens diverse environments. This bibliometric analysis provides timely overview OHRB research trends and identifies knowledge gaps. Publication numbers have steadily increased since process was discovered 1982, with fluctuations total citations average per publication. The past decade witnessed peak publications, underscoring heightened activity extensive collaboration. Thematic identified two primary foci: mechanistic exploration their interplay environmental factors. Future should prioritize elucidating roles OHRB’s biogeochemical cycling, utilizing synthetic biology tools for enhanced biotransformation, deciphering ecological interactions, unraveling evolutionary pathways, investigating dehalogenation capabilities other microorganisms, including archaea. These directions promise to advance our understanding microbially-driven organohalide transformations, microbial ecology, genetic engineering potential, ultimately informing natural cycling management strategies.
Язык: Английский
Процитировано
0
Microbiology Resource Announcements, Год журнала: 2024, Номер unknown
Опубликована: Дек. 27, 2024
A complete genome sequence of
Процитировано
0