Rhizosphere microbial community structure and PICRUSt2 predicted metagenomes function in heavy metal contaminated sites: A case study of the Blesbokspruit wetland DOI Creative Commons

Hlalele D Heisi,

Rosina Nkuna, Tonderayi S. Matambo

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 959, P. 178147 - 178147

Published: Dec. 29, 2024

This study investigated the microbial diversity inhabiting roots (rhizosphere) of macrophytes thriving along Blesbokspruit wetland, South Africa's least conserved Ramsar site. The wetland suffers from decades pollution mining wastewater, agriculture, and sewage. current focused on three macrophytes: Phragmites australis (common reed), Typha capensis (bulrush), Eichhornia crassipes (water hyacinth). results revealed a greater abundance microbes (Bacteria Fungi) associated with free-floating E. compared to P. T. capensis. Furthermore, correlation between metals, showed strong fungal communities metals such as nickel (Ni) arsenic (As), while bacterial correlated more lead (Pb) chromium (Cr). functional analysis predicted by PICRUSt2 identified genes related xenobiotic degradation, suggesting potential these break down pollutants. Moreover, specific groups - Proteobacteria, Verrucomicrobia, Cyanobacteria, Bacteroidetes were linked this degradation pathway. These findings suggest promising avenue for microbe-assisted phytoremediation, technique that utilizes plants their decontaminate polluted environments.

Language: Английский

In situ high-resolution insights into the dynamics of arsenic (As) species and heavy metals across the sediment-water interface in a deep karst reservoir DOI
Zhenjie Zhao, Shehong Li, Qiao Han

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137775 - 137775

Published: Feb. 26, 2025

Language: Английский

Citations

0
Microbially Mediated Arsenic-Nitrogen Biogeochemical Coupling Across Vertical Distribution in Coastal Wetlands DOI Open Access

Yang Zou,

Lili Xue, Ting Luo

et al.

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1255 - 1255

Published: April 23, 2025

Few studies have addressed the coupling of arsenic (As) and nitrogen (N) geochemistry in natural soil. This research focused on vertical distribution behavior As N coastal wetland sediments. Pore water sediment from barren wetlands near three estuaries (Guanhe River, Sheyang Liangduo River) central Jiangsu Province China with Spartina alterniflora (S. alterniflora) were sampled, which analyzed for total content speciation inorganic fractions. The bacterial community was investigated through 16s rDNA sequencing; diversity indices calculated. change trend pore surface increasing depth opposite to that NO3−, possibly because NO3− promoted arsenite (As(III)) oxidation arsenate (As(V)). Increased contents seemed mitigate toxicity. NH4+ indicated anaerobic ammonium iron (Fe) reduce Fe oxides, resulting release, especially deeper sediment. High-throughput sequencing analysis revealed some potential bacteria involved As-N geochemical coupling, such as Bacillus Psychrobacter, can couple denitrification oxidation, Sva1033, may favor oxidation-induced release. Our results suggest N-driven As(III) release be relevant processes emphasize importance microorganisms processes. deepens our understanding wetlands, providing a theoretical basis controlling pollution.

Language: Английский

Citations

0
Nitrogen, sulfur, iron, and microbial communities co-shape the seasonal biogeochemical behaviors of As and Sb in coastal tidal flat wetlands associated with rivers DOI

Shen Kong,

Ting Luo, Lili Xue

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 484, P. 136730 - 136730

Published: Dec. 1, 2024

Language: Английский

Citations

1
Fate of Arsenic in contaminated coastal soil induced by rising temperature and seawater intrusion DOI
Meihua Lian,

Xiangfeng Zeng,

Lixia Li

et al.

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 202, P. 106799 - 106799

Published: Oct. 18, 2024

Language: Английский

Citations

0
Rhizosphere microbial community structure and PICRUSt2 predicted metagenomes function in heavy metal contaminated sites: A case study of the Blesbokspruit wetland DOI Creative Commons

Hlalele D Heisi,

Rosina Nkuna, Tonderayi S. Matambo

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 959, P. 178147 - 178147

Published: Dec. 29, 2024

This study investigated the microbial diversity inhabiting roots (rhizosphere) of macrophytes thriving along Blesbokspruit wetland, South Africa's least conserved Ramsar site. The wetland suffers from decades pollution mining wastewater, agriculture, and sewage. current focused on three macrophytes: Phragmites australis (common reed), Typha capensis (bulrush), Eichhornia crassipes (water hyacinth). results revealed a greater abundance microbes (Bacteria Fungi) associated with free-floating E. compared to P. T. capensis. Furthermore, correlation between metals, showed strong fungal communities metals such as nickel (Ni) arsenic (As), while bacterial correlated more lead (Pb) chromium (Cr). functional analysis predicted by PICRUSt2 identified genes related xenobiotic degradation, suggesting potential these break down pollutants. Moreover, specific groups - Proteobacteria, Verrucomicrobia, Cyanobacteria, Bacteroidetes were linked this degradation pathway. These findings suggest promising avenue for microbe-assisted phytoremediation, technique that utilizes plants their decontaminate polluted environments.

Language: Английский

Citations

0