Pristine and sulfidized ZnO nanoparticles alter microbial community structure and nitrogen cycling in freshwater lakes

2022 ◽  
Vol 294 ◽  
pp. 118661
Author(s):  
Shaopan Bao ◽  
Dongfang Xiang ◽  
Lu Xue ◽  
Bo Xian ◽  
Wei Tang ◽  
...  
2011 ◽  
Vol 18 (1) ◽  
pp. 138-150 ◽  
Author(s):  
James T. Weedon ◽  
George A. Kowalchuk ◽  
Rien Aerts ◽  
Jurgen van Hal ◽  
Richard van Logtestijn ◽  
...  

Author(s):  
Mija Aždajić ◽  
Emmanuel Yumvihoze ◽  
Jules Blais ◽  
Alexandre J Poulain

Smelting activities at Giant Mine (Yellowknife, NWT, Canada) have resulted in high sulfate and arsenic concentrations in nearby lakes. Here we tested whether historic smelting affects current mercury (Hg) cycling...


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3937 ◽  
Author(s):  
Miranda H. Hengy ◽  
Dean J. Horton ◽  
Donald G. Uzarski ◽  
Deric R. Learman

Lakes are dynamic and complex ecosystems that can be influenced by physical, chemical, and biological processes. Additionally, individual lakes are often chemically and physically distinct, even within the same geographic region. Here we show that differences in physicochemical conditions among freshwater lakes located on (and around) the same island, as well as within the water column of each lake, are significantly related to aquatic microbial community diversity. Water samples were collected over time from the surface and bottom-water within four freshwater lakes located around Beaver Island, MI within the Laurentian Great Lakes region. Three of the sampled lakes experienced seasonal lake mixing events, impacting either O2, pH, temperature, or a combination of the three. Microbial community alpha and beta diversity were assessed and individual microbial taxa were identified via high-throughput sequencing of the 16S rRNA gene. Results demonstrated that physical and chemical variability (temperature, dissolved oxygen, and pH) were significantly related to divergence in the beta diversity of surface and bottom-water microbial communities. Despite its correlation to microbial community structure in unconstrained analyses, constrained analyses demonstrated that dissolved organic carbon (DOC) concentration was not strongly related to microbial community structure among or within lakes. Additionally, several taxa were correlated (either positively or negatively) to environmental variables, which could be related to aerobic and anaerobic metabolisms. This study highlights the measurable relationships between environmental conditions and microbial communities within freshwater temperate lakes around the same island.


2016 ◽  
Vol 35 (2) ◽  
pp. 573-588 ◽  
Author(s):  
Ariane L. Peralta ◽  
Eric R. Johnston ◽  
Jeffrey W. Matthews ◽  
Angela D. Kent

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