What question did this study set out to answer?

To evaluate the ecological risks of glyphosate to sediment-dwelling organisms and examine its impact on the composition and functional potential of sediment bacterial communities.

December 21, 2022Ecotoxicology and Environmental SafetyOpen Access

Ecological risk assessment of glyphosate and its possible effect on bacterial community in surface sediments of a typical shallow Lake, northern China

View Full Paper

Ask AI

Bookmark

Authors

RXRong XiaoTongji University BKBo KuangFuzhou University YHYanping HuZhejiang A & F University

Discussion

Member takes

Implication

Ecological risk assessment reveals chronic glyphosate toxicity and altered bacterial community metabolic functions in shallow lake sediments, suggesting risks to aquatic nutrient cycling.

Key Points

To evaluate the ecological risks of glyphosate to sediment-dwelling organisms and examine its impact on the composition and functional potential of sediment bacterial communities.
Assessed surface sediment samples collected from a large shallow lake in northern China near agricultural and residential areas.
Quantified glyphosate concentrations and calculated chronic risk quotients for benthic organisms.
Profiled sediment-attached bacterial community structure and predicted metabolic functions using 16S rRNA high-throughput sequencing and functional annotation.
Glyphosate concentrations reached up to 8.63 mg/kg, with 10% of samples exhibiting medium-to-high chronic risk quotients, especially near farmland and residential sites in August.
Glyphosate accumulation stimulated sulfur-oxidizing, sulfate-, iron-, and nitrate-reducing taxa (Proteobacteria and Campilobacterota) while suppressing endophytes, polyphosphate-accumulating organisms, and denitrifiers (Actinobacteriota, Acidobacteriota, and Firmicutes).
Functional profiling predicted upregulated sulfite respiration, nitrogen respiration, aromatic compound degradation, and nitrification, alongside downregulated cellulolysis and nitrate denitrification.

Cite This Study

Xiao et al. (2022) studied this question.

synapsesocial.com/papers/6a9f5ed7dfd7d292d9c074ac https://doi.org/10.1016/j.ecoenv.2022.114445

View Full Paper

Ask AI

Bookmark

Implication

Ecological risk assessment reveals chronic glyphosate toxicity and altered bacterial community metabolic functions in shallow lake sediments, suggesting risks to aquatic nutrient cycling.

Ecological risk assessment of glyphosate and its possible effect on bacterial community in surface sediments of a typical shallow Lake, northern China

Discussion

Member takes

Implication

Key Points

Cite This Study

Ecological risk assessment of glyphosate and its possible effect on bacterial community in surface sediments of a typical shallow Lake, northern China

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider