Disentangling drivers of mudflat intertidal DOM chemodiversity using ecological models

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Aug. 5, 2024

Microorganisms consume and transform dissolved organic matter (DOM) into various forms. However, it remains unclear whether the ecological patterns drivers of DOM chemodiversity are analogous to those microbial communities. Here, a large-scale investigation is conducted along Chinese coasts resolve intrinsic linkages among complex intertidal pools, communities environmental heterogeneity. The abundance molecular formulae best fits log-normal distribution follows Taylor's Law. Distance-decay relationships observed for labile formulae, while latitudinal diversity gradients noted recalcitrant formulae. Latitudinal also features. Negative cohesion, bacterial diversity, traits main chemodiversity. Stochasticity analyses demonstrate that determinism dominantly shapes compositional variations. This study unveils mechanisms underlying from perspectives, deepening our understanding microbially driven chemical ecology. Intertidal similar microbes, suggesting there may exist universal models explaining both living non-living biological entities in Earth's biosphere.

Language: Английский

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Machine Learning Models for Evaluating Biological Reactivity Within Molecular Fingerprints of Dissolved Organic Matter Over Time

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(11)

Published: June 1, 2024

Abstract Reservoirs exert a profound influence on the cycling of dissolved organic matter (DOM) in inland waters by altering flow regimes. Biological incubations can help to disentangle role that microbial processing plays DOM within reservoirs. However, complex composition poses great challenge analysis such data. Here we tested if interpretable machine learning (ML) methodologies contribute capturing relationships between molecular reactivity and composition. We developed time‐specific ML models based 7‐day 30‐day simulate biogeochemical processes Three Gorges Reservoir over shorter longer water retention periods, respectively. Results showed extended time likely allows successive degradation molecules, with stochasticity exerting non‐negligible effect at initial stage incubation. This study highlights potential enhancing our interpretation dynamics time.

Language: Английский

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Molecular Insights into the Transformation of Dissolved Organic Matter in a Full-Scale Wastewater Treatment Plant

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(9), P. 4228 - 4238

Published: Aug. 16, 2024

The compounds generated during wastewater treatment processes might increase the complexity and chemical risk assessment of wastewater-derived dissolved organic matter (DOM) released into receiving water. This study applied Fourier transform ion cyclotron resonance mass spectrometry to investigate dynamic changes in composition at molecular level a full-scale municipal plant (WWTP). Approximately 63.1% detected molecules effluent were derived from influent. N/S-containing more effectively removed than CHO studied WWTP. dealkylation oxygen addition reactions N-containing molecules, along with predominant N-addition observed anaerobic oxic tanks, contributed higher N/Cwa However, S-containing could be via S-loss anoxic/anaerobic/oxic (inverted A/A/O) processes. Dealkylation found reaction types all tanks inverted A/A/O More oxidized aromaticity unsaturation degree Our findings provide comprehensive view transformation DOM WWTP offer valuable insights water quality.

Language: Английский

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Effect of a high Cl– concentration on the transformation of waste leachate DOM by the UV/PMS system: A mechanistic study using the Suwannee River natural organic matter (SRNOM) as a simulator of waste leachate DOM

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137038 - 137038

Published: Jan. 5, 2025

Language: Английский

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Unveiling molecular DOM reactomics and transformation coupled with multifunctional nanocomposites under anaerobic conditions: Tracking potential metabolomics and pathways

Chemosphere, Journal Year: 2025, Volume and Issue: 372, P. 144111 - 144111

Published: Jan. 20, 2025

Language: Английский

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A Novel Single-Chamber Bio-Electro-Fenton for E2-3s Removal: Insights into the Effects of Wastewater-Derived Dom Composition from Molecular and Species Levels

Published: Jan. 1, 2025

Language: Английский

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A novel single-chamber bio-electro-Fenton for E2-3S removal: Insights into the effects of wastewater-derived DOM composition from molecular and species levels

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138147 - 138147

Published: April 1, 2025

Language: Английский

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Accurate Detection and High Throughput Profiling of Unknown PFAS Transformation Products for Elucidating Degradation Pathways

Water Research, Journal Year: 2025, Volume and Issue: 282, P. 123645 - 123645

Published: April 15, 2025

Language: Английский

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Enhanced removal of biolabile oxygen-depleted dissolved organic matter by coagulation-adsorption process Improves biological stability of reclaimed water

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157156 - 157156

Published: Oct. 1, 2024

Language: Английский

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