Relationships between microbial characteristics and the arsenic cycle in high-arsenic groundwater DOI Creative Commons
Jingru Yang, Yanyan Zhang, Qiao Li

et al.

Environmental Research Communications, Journal Year: 2024, Volume and Issue: 6(11), P. 115027 - 115027

Published: Nov. 1, 2024

Abstract Microbial activities play a pivotal role in the migration and transformation of arsenic (As) within groundwater systems, particularly at high concentrations. Focusing on Kuitun River Basin, this study used high-throughput sequencing to unravel intricate diversity microbial communities their influence As enrichment. Groundwater with elevated hosted richer more diverse populations compared that lower levels. The Sobs Shannon indices for high-As group initially declined before rising increasing Key taxa dominating these ecosystems included Pseudomonas , Acinetobacter Aquabacterium Novosphingobium Sphingobium showing substantial variation abundance across different Distance-based redundancy analysis emphasized importance dissolved oxygen shaping landscape, followed closely by interplay between iron Flavobacteriaceae Burkholderiaceae displayed inverse correlations levels, highlighting multifaceted relationship chemistry. This investigation underscores profound impact concentration gradients biodiversity elucidates complex regulatory framework where environmental parameters microorganisms collaborate governing accumulation groundwater. results enrich our understanding biogeochemical dynamics underlying behavior subterranean aquatic habitats.

Language: Английский

Microbial community dynamics in shallow-water grass-type lakes: Habitat succession of microbial ecological assembly and coexistence mechanisms DOI Creative Commons
Feng Chen, Junping Lu, Tingxi Liu

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 291, P. 117819 - 117819

Published: Feb. 1, 2025

Aggregation and co-occurrence patterns of microbial communities are the key scientific issues in lake ecology. To explore mechanisms ecological assembly community succession this unique habitat, 16 samples were collected from eight sites Wuliangsuhai Lake. Second-generation DNA sequencing was applied to reveal spatial dynamics bacterial structure distribution across two environmental media nutrient-rich shallow grassland elucidate characteristics network. This study also examined effects filtering biological interactions on formation maintenance composition diversity. The results highlight habitat heterogeneity composition, with no discernible latitudinal diversity patterns. causal analysis identified electrical conductivity, pH, total nitrogen, phosphorus as primary factors driving changes water sediment grass-type lakes, TN being driver. CL500-3 a pollution-tolerant species aquatic environments. g__norank_f_Verrucomicrobiaceae exhibited significant distance decay pattern, higher turnover rate than sediment. Co-occurrence network revealed greater complexity stability communities, three potential keystone species, water. neutral null model indicated that more susceptible dispersal limitation, whereas complex increased role deterministic processes construction. proposed division plant regions freshwater lakes demonstrated different types, contributing comprehensive understanding shallow-water structure.

Language: Английский

Citations

0
Promoting the health of aquatic ecosystems in semi-closed estuaries: The indispensable function of constructed microtopography DOI

Tianyin Huang,

Yingjie Zhao,

Yidong Sun

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 73, P. 107701 - 107701

Published: April 15, 2025

Language: Английский

Citations

0
Cyanotoxin Occurrence and Diversity in 98 Cyanobacterial Blooms From Swedish Lakes and the Baltic Sea DOI Open Access

Caroline Dirks,

Paolo Cappelli,

Maria Blomqvist

et al.

Published: April 4, 2024

The Drinking Water Directive (EU) 2020/2184 includes the parameter microcystin-LR, a cyanotoxin, which drinking water producers need to analyze if source has potential for cyanobacterial blooms. In light of increasing occurrences blooms worldwide and given that more than 50 percent in Sweden is produced from surface water, both fresh brackish, improved knowledge about cyanotoxin occurrence diversity increased. this study total 98 were sampled 2016-2017 identified regarding their toxin production taxonomical compositions. samples freshwater lakes throughout including brackish 8 east coast locations along Baltic Sea analyzed content with LC-MS/MS taxonomic composition 16S rRNA amplicon sequencing. Both extracellular was analyzed. Microcystin´s prevalence highest presence 82% blooms, as free toxins 39% Saxitoxins found 36% congener decarbamoylsaxitoxin (dcSTX) detected first time Swedish waters at four sampling sites. Anatoxins most rarely detected, followed by cylindrospermopsin, 6% 10% samples, respectively. As expected, nodularin collected only. operational unit (OTU) abundance could be annotated Aphanizomenon NIES-81 second profuse taxon Microcystis PCC-7914. addition, two correlations found, one between saxitoxins another PCC-7914 microcystins. This value management scientists involved recognizing controlling toxic cyanobacteria

Language: Английский

Citations

1
Cyanotoxin Occurrence and Diversity in 98 Cyanobacterial Blooms from Swedish Lakes and the Baltic Sea DOI Creative Commons

Caroline Dirks,

Paolo Cappelli,

Maria Blomqvist

et al.

Marine Drugs, Journal Year: 2024, Volume and Issue: 22(5), P. 199 - 199

Published: April 27, 2024

The Drinking Water Directive (EU) 2020/2184 includes the parameter microcystin LR, a cyanotoxin, which drinking water producers need to analyze if source has potential for cyanobacterial blooms. In light of increasing occurrences blooms worldwide and given that more than 50 percent in Sweden is produced from surface water, both fresh brackish, improved knowledge about cyanotoxin occurrence diversity increased. this study, total 98 were sampled 2016-2017 identified based on their toxin production taxonomical compositions. samples freshwater lakes throughout including brackish eight east coast locations along Baltic Sea analyzed content with LC-MS/MS taxonomic composition 16S rRNA amplicon sequencing. Both extracellular analyzed. Microcystin's prevalence was highest presence 82% blooms, as free 39% Saxitoxins found 36% congener decarbamoylsaxitoxin (dcSTX) detected first time Swedish waters at four sampling sites. Anatoxins most rarely detected, followed by cylindrospermopsin, 6% 10% samples, respectively. As expected, nodularin collected only. operational units (OTUs) abundance could be annotated Aphanizomenon NIES-81 second profuse taxon Microcystis PCC 7914. addition, two correlations found, one between saxitoxins another 7914 microcystins. This study value management scientists involved recognizing controlling toxic cyanobacteria

Language: Английский

Citations

1
Relationships between microbial characteristics and the arsenic cycle in high-arsenic groundwater DOI Creative Commons
Jingru Yang, Yanyan Zhang, Qiao Li

et al.

Environmental Research Communications, Journal Year: 2024, Volume and Issue: 6(11), P. 115027 - 115027

Published: Nov. 1, 2024

Abstract Microbial activities play a pivotal role in the migration and transformation of arsenic (As) within groundwater systems, particularly at high concentrations. Focusing on Kuitun River Basin, this study used high-throughput sequencing to unravel intricate diversity microbial communities their influence As enrichment. Groundwater with elevated hosted richer more diverse populations compared that lower levels. The Sobs Shannon indices for high-As group initially declined before rising increasing Key taxa dominating these ecosystems included Pseudomonas , Acinetobacter Aquabacterium Novosphingobium Sphingobium showing substantial variation abundance across different Distance-based redundancy analysis emphasized importance dissolved oxygen shaping landscape, followed closely by interplay between iron Flavobacteriaceae Burkholderiaceae displayed inverse correlations levels, highlighting multifaceted relationship chemistry. This investigation underscores profound impact concentration gradients biodiversity elucidates complex regulatory framework where environmental parameters microorganisms collaborate governing accumulation groundwater. results enrich our understanding biogeochemical dynamics underlying behavior subterranean aquatic habitats.

Language: Английский

Citations

0