Overlying water fluoride concentrations influence dissolved organic matter composition and migration from pore water in sediment via bacterial mechanisms

Zhu, Xuan; Wang, Zibo; Luo, Yidan; Ma, Yushen; Xu, Zhipeng; Wang, Longmian; Peng, Fuquan; Pang, Qingqing; Li, Yiping; He, Fei; Xu, Bin

doi:10.1016/j.ese.2022.100163

Cited by 10 publications

(14 citation statements)

References 63 publications

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“…The BIX characterizes the proportion of authigenic organic matter (Rodríguez-Vidal et al, 2020; Feng et al, 2022), and the HIX characterizes the degree of organic matter humi cation (Feng et al, 2021;Xiao et al, 2022). F max is an important indicator for quantifying the relative contents of DOM compositions (Zhu et al, 2022). PARAFAC was conducted using R 4.0.5, eliminating the primary and secondary Rayleigh scattering regions and correcting the inner-lter effects.…”

Section: Experimental Designmentioning

confidence: 99%

“…Moreover, Thiobacillus showed a negative correlation with the F max of C2 and C4. Zhu et al (2022) found that the chemoautotrophic bacterium Thiobacillus indirectly affects DOM release through its sulfur oxidation process. Previous studies have also found that DOM can act as a Thiobacillus photosensitizer, triggering apoptosis, while the photosensitizing DOM is constantly depleted by its oxidation (Huang et al, 2022b).…”

Section: Response Of Bacterial Communities To Environmental Factors A...mentioning

confidence: 99%

“…The relative abundances of M00044 group S3 signi cantly lower than those in groups S1 and S2 on the 40th to 70th day, suggesting that high salinity inhibited the metabolic degradation ability of tyrosine. High salinity disrupts microbial enzyme structures by increasing cellular pressure (He et al, 2017) and affects the degradation of protein-like substances (Zhu et al, 2022). Hence, the relative abundances of tyrosine metabolic pathway genes were lower under high salinity.…”

Section: Response Of Bacterial Communities To Environmental Factors A...mentioning

confidence: 99%

“…Pore water in sediment is an essential source of DOM in lakes (Luo et al, 2021) and interacts with overlying water through diffusion, resulting in similar DOM compositions (Zhu et al, 2022). Compared to the DOM in overlying water, pore water DOM has a high degree of humi cation, aromaticity, and a larger relative size (Butturini et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…The alpha and beta diversities of bacterial communities have been reported to be associated with DOM concentrations and compositions (Muscarella et al, 2019). Bacteria produce, transform or breakdown labile DOM (Zhu et al, 2022). Anaerolinea, for example, has the potential to release lignin-like DOM associated with DOM hydrolysis and acidi cation (Zhang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Salinity fluctuations in a brackish-water lake influence the dissolved organic matter characteristics of pore water

Xie

Zuo

et al. 2023

Preprint

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The dissolved organic matter (DOM) compositions in lake water have been widely studied; however, it is not clear how salinity fluctuations in brackish lakes with reeds affect DOM transformation in pore water. This experiment included three salinity groups (1,200 mg/L, 3,600 mg/L, and 6,000 mg/L) to research the interactions between bacteria and DOM in sediments under a salinity gradient. The results showed that higher salinity reduced the Fmax of protein-like substances and resulted in DOM becoming more aromatic and endogenous. Salinity affected DOM compositions due to the responses of functional bacterial communities. Thiobacillus was salt-tolerant and dominated in the sediments, the relative abundances of which were negatively correlated with the Fmax of the protein-like components. The relative abundance of Flavobacterium showed a positive correlation with salinity and a negative correlation with the Fmax of fulvic acid-like and tryptophan-like components. Pseudomonas showed negative correlations with salinity and the Fmax of fulvic acid-like substances and a positive correlation with the Fmax of protein-like substances. Higher salinity inhibited the tryptophan degradation metabolic pathway and enhanced tryptophan biosynthesis. In addition, higher salinity simultaneously inhibited tyrosine biosynthesis and metabolism pathways. The results of this study may provide a new idea for understanding DOM cycling in brackish lake and organic pollution management.

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Section: Experimental Designmentioning

confidence: 99%

Section: Response Of Bacterial Communities To Environmental Factors A...mentioning

confidence: 99%

Section: Response Of Bacterial Communities To Environmental Factors A...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Salinity fluctuations in a brackish-water lake influence the dissolved organic matter characteristics of pore water

Xie

Zuo

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Fabrication and optimization of bioelectrochemical system using tetracycline-degrading bacterial strains for antibiotic wastewater treatment

Wu,

Tang,

Amanze

et al. 2024

Bioresource Technology

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Optical measurements of dissolved organic matter as proxies for CODMn and BOD5 in plateau lakes

Yang,

Zhou,

Yang

et al. 2024

Environmental Science and Ecotechnology

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Overlying water fluoride concentrations influence dissolved organic matter composition and migration from pore water in sediment via bacterial mechanisms

Cited by 10 publications

References 63 publications

Salinity fluctuations in a brackish-water lake influence the dissolved organic matter characteristics of pore water

Salinity fluctuations in a brackish-water lake influence the dissolved organic matter characteristics of pore water

Fabrication and optimization of bioelectrochemical system using tetracycline-degrading bacterial strains for antibiotic wastewater treatment

Optical measurements of dissolved organic matter as proxies for CODMn and BOD5 in plateau lakes

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