Sustained anaerobic degradation of 4-chloro-2-methylphenoxyacetic acid by acclimated sludge in a continuous-flow reactor

Zhang, Xuan; Geng, Keke; Wu, Ningning; Hu, Gang; Fan, Bin; He, Jian; Qiao, Wenjing

doi:10.1016/j.chemosphere.2023.138749

Cited by 4 publications

(2 citation statements)

References 49 publications

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“…V4 hypervariable region of 16S rRNA gene was amplified using the primers: 515F (5′-GTGYCAGCCGCGGTAA-3′) and 806R (5′-GGACTACNVGGGTWTCTAAT-3′) . Paired-end reads from the original DNA fragments were quality-filtered using the QIIME (v1.9.1) and merged using the FLASH (v1.2.11). , The analytical method used was described previously . The raw 16s rRNA gene amplicon sequencing data have been deposited in NCBI in Bioproject Accession No.…”

Section: Methodsmentioning

confidence: 99%

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Anaerobic Degradation of Dicamba via a Novel Catabolic Pathway by a Consortium Enriched from Deep Paddy Soil

Zhang,

Wu,

et al. 2024

J. Agric. Food Chem.

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Dicamba is widely used in the paddy field to control broadleaf weeds. Dicamba easily migrates to deep soil, which is anoxic; however, the anaerobic catabolism of dicamba in paddy soil is still unknown. In this study, an anaerobic dicamba-degrading consortium was enriched from deep paddy soil. The consortium completely degraded 0.83 mM dicamba within 7 days. Five metabolites were identified, one of which is a new metabolite, 2,5-dichlorophenol, and a novel anaerobic dicamba degradation pathway was proposed. 2.5 mM dicamba, 1.5−2.0% NaCl, and 20 mM electron acceptors Na 2 SO 4 , NaNO 3 , and FeCl 3 , and 0.5 mM or more of metabolites 3-CP and 2,5-DCP strongly inhibited the degradation efficiency. During enrichment, the microbial community of the consortium was significantly changed with OTU numbers, and diversity decreased. The study is valuable to elucidate the catabolism and ecotoxicology studies of dicamba in paddy soil and to facilitate the engineering application of anaerobic technology to treat dicamba-manufacturing wastewater.

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Section: Methodsmentioning

confidence: 99%

“…21,22 The analytical method used was described previously. 23 The raw 16s rRNA gene amplicon sequencing data have been deposited in NCBI in Bioproject Accession No. PRJNA988294 under Sequence Read Archive (SRA) no.…”

Section: Effects Of Environmental Factors On Dicamba Degradation and ...mentioning

confidence: 99%

Anaerobic Degradation of Dicamba via a Novel Catabolic Pathway by a Consortium Enriched from Deep Paddy Soil

Zhang,

Wu,

et al. 2024

J. Agric. Food Chem.

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A novel simultaneous short-course nitrification, denitrification and fermentation process: bio-enhanced phenol degradation and denitrification in a single reactor

Zhu,

Li,

Ren

et al. 2024

Environ Monit Assess

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Green manure plants enhance atrazine degradation in agriculture soil through modulating rhizosphere microbial communities

Hu,

An,

et al. 2025

Environmental Research

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Sustained anaerobic degradation of 4-chloro-2-methylphenoxyacetic acid by acclimated sludge in a continuous-flow reactor

Cited by 4 publications

References 49 publications

Anaerobic Degradation of Dicamba via a Novel Catabolic Pathway by a Consortium Enriched from Deep Paddy Soil

Anaerobic Degradation of Dicamba via a Novel Catabolic Pathway by a Consortium Enriched from Deep Paddy Soil

A novel simultaneous short-course nitrification, denitrification and fermentation process: bio-enhanced phenol degradation and denitrification in a single reactor

Green manure plants enhance atrazine degradation in agriculture soil through modulating rhizosphere microbial communities

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