Article
Environmental Sciences
Milan Farkas, Sandor Szoboszlay, Lajos Voros, Zsofia Lovasz, Nikoletta Mehes, Kalman Matyas, Rozsa Sebok, Edit Kaszab, Judit Hahn, Gergo Toth, Peter Harkai, Arpad Ferincz, Andras Tancsics, Balazs Kriszt
Summary: Lake Balaton, the largest shallow lake in Central Europe, has successfully reversed eutrophication processes with the help of wetland areas. Floods and external nutrient load affect the composition of microbial communities, while decomposition of algae biomass in plant-covered areas has a significant impact on bacterial communities.
Article
Biodiversity Conservation
Yujun Yi, Chuqiao Lin, Wenjun Wang, Jie Song
Summary: This study investigated the benthic bacterial community composition in different habitat types of Baiyangdian Lake in North China, revealing dominant bacteria in different habitats and their seasonal abundance. Habitat type was found to be the main factor influencing bacterial community composition, while sediment pH and active phosphorus content also played significant roles.
ECOLOGICAL INDICATORS
(2021)
Article
Microbiology
Keqiang Shao, Lei Zhang, Tunasheng Ba, Jianying Chao, Guang Gao
Summary: This study analyzed the bacterial community composition (BCC) and their relationships with environmental factors in the sediment of Sayram Lake, the largest alpine and cold-water inland lake in China. The results showed that the dominant phyla in the sediment were Proteobacteria, Acidobacteria, and Planctomycetes, and total organic carbon (TOC) was the main environmental factor affecting the spatial distribution of BCC. This study greatly enhances our understanding of the microbial ecology of alpine lakes in arid and semi-arid ecosystems.
Article
Microbiology
Haiguang Pu, Yuxiang Yuan, Lei Qin, Xiaohui Liu
Summary: By comprehensively and systematically understanding the structure and diversity of microbial communities in lake sediments, we can provide feedback on sediment status and lake ecosystem protection. Through high-throughput sequencing, we investigated the physicochemical properties and bacterial communities in different regions, finding that high pH reduces the beta diversity of bacterial communities in the sediment.
Article
Environmental Sciences
John K. Pearman, Susanna A. Wood, Marcus J. Vandergoes, Javier Atalah, Sean Waters, Janet Adamson, Georgia Thomson-Laing, Lucy Thompson, Jamie D. Howarth, David P. Hamilton, Xavier Pochon, Laura Biessy, Katie A. Brasell, Jenny Dahl, Riki Ellison, Sean J. Fitzsimons, Henry Gard, Tania Gerrard, Rose Gregersen, McKayla Holloway, Xun Li, David J. Kelly, Reece Martin, Kiely McFarlane, Nicholas P. McKay, Adelaine Moody, Chris M. Moy, Sebastian Naeher, Rewi Newnham, Russleigh Parai, Mailys Picard, Jonathan Puddick, Andrew B. H. Rees, Lizette Reyes, Marc Schallenberg, Claire Shepherd, Julia Short, Kevin S. Simon, Konstanze Steiner, Charlotte Sunde, Marianna Terezow, John Tibby
Summary: Efficient monitoring methods for lakes are necessary for proactive protection and management. Using bacterial communities in lake surface sediments provides a rapid and cost-effective way to assess trophic states.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Limnology
Stefanos Moschos, Odysseas Piperagkas, Hera Karayanni
Summary: The study examined the composition and variations of bacterial community in sediment of Lake Pamvotis, revealing a diverse and homogenous bacterial community composition primarily dominated by Proteobacteria, Bacteroidetes, and Chloroflexi. Certain anaerobic/microaerobic taxa common in polluted aquatic systems were found to significantly influence the bacterial community composition in the lake sediment.
Article
Environmental Sciences
Ai -Ling Chen, Fu-Qing Xu, Xia Su, Fu -Pan Zhang, Wan-Chao Tian, Shang-Jie Chen, Fang Gou, Zhi-Lin Xing, Jin-Xin Xiang, Juan Li, Tian-Tao Zhao
Summary: This study aimed to evaluate the correlation between microecology of sediments and water as well as their spatial-temporal variations in Changshou Lake. The results showed that the microecology in the lake exhibited spatiotemporal heterogeneity, with higher microbial diversity in sediments compared to water. There was a statistically insignificant positive correlation between the microecology of sediments and water bodies. The analysis also revealed specific phyla that exhibited significant spatial and seasonal differences in sediments and water.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Rong Xiao, Bo Kuang, Yanping Hu, Yaping Wang, Junhong Bai, Ling Zhang, Chen Wang, Zhuoqun Wei, Kegang Zhang, Milko A. Jorquera, Marco Campos, Jacquelinne J. Acuna, Wenbin Pan
Summary: This study evaluated the potential ecological risk of glyphosate to sediment-dwelling organisms and assessed the probable effect of glyphosate on the structure and predicted function of sediment-attached bacterial communities from a large shallow lake in northern China based on 16S rRNA high-throughput sequencing. Results suggested that glyphosate showed a medium to high concentration and chronic risk to sediment-dwelling organisms, especially in sites nearby farmland and residential areas. Glyphosate accumulation stimulated certain bacterial species while inhibiting others, leading to changes in bacterial metabolic functions.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Environmental
J. E. Ruprecht, S. C. Birrer, K. A. Dafforn, S. M. Mitrovic, S. L. Crane, E. L. Johnston, F. Wemheuer, A. Navarro, A. J. Harrison, I. L. Turner, W. C. Glamore
Summary: This study used a novel combination of microbial ecotoxicology methods to investigate the effects of wastewater pollution on bacterial community structure and function. Wastewater effluents above moderate concentrations led to significant shifts in bacterial community structure and function, primarily driven by two globally relevant bacterial indicator taxa, Malikia spp. and hgcI_clade. These findings have immediate implications for both the management of environmental stressors and protection of aquatic ecosystems.
Article
Environmental Sciences
Shu-Hang Wang, Sheng-Wu Yuan, Fei-Fei Che, Xin Wan, Yi-Fei Wang, Dian-Hai Yang, Hai-Jiang Yang, Dong Zhu, Peng Chen
Summary: Understanding the assembly and turnover of microbial communities is crucial for gaining insights into the diversity and functioning of lake ecosystems. In this study, the diversity, assembly, and turnover of bacterial and fungal communities in Taihu Lake sediment were examined. The results revealed significant heterogeneity among sediment samples in terms of environmental factors and microbial community composition. These findings deepen the understanding of microbial assembly and turnover in sediments under environmental stress and provide essential insights for maintaining the multifunctionality of lake ecosystems.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Roohollah Noori, Elmira Ansari, Yong-Wook Jeong, Saber Aradpour, Mohsen Maghrebi, Majid Hosseinzadeh, Sayed M. Bateni
Summary: The study found that the Sabalan dam reservoir in northwest Iran is facing eutrophication issues primarily due to phosphorus and nitrogen enrichment. The reservoir is classified as hypereutrophic, with nutrient levels showing significant variations throughout the year. Water residence time plays a crucial role in controlling eutrophication in the reservoir, with longer residence times contributing to nutrient accumulation.
Article
Environmental Sciences
Huanjun Zhang, Liu Yang, Yi Li, Chao Wang, Wenlong Zhang, Longfei Wang, Lihua Niu
Summary: The study reveals that severe pollution reduces microbial diversity and network complexity, potentially leading to community instability. Competition for nutrients among copiotrophic bacteria may be enhanced as pollution levels increase. Unique keystone taxa in the severe pollution group may contribute to photosynthesis and pollutant degradation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Binhao Wang, Bin Ma, Erinne Stirling, Zhili He, Hangjun Zhang, Qingyun Yan
Summary: Freshwater microorganisms and their interactions are influenced by nutrient status, which leads to changes in microbial community diversity. However, the impact of trophic status on bacterial-archaeal interdomain interactions is not well understood. This study found that the mesotrophic wetland had a more complex bacterial-archaeal interdomain network compared to wetlands with lower or higher trophic levels.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Han Gao, Juan Chen, Chao Wang, Peifang Wang, Rong Wang, Bingbing Feng
Summary: The contamination of polybrominated diphenyl ethers in sediments poses a serious threat to human health and ecological safety. This study examined the effects of decabromodiphenyl ether (BDE-209) and Hydrilla verticillata on sediment bacterial communities and functions. The results showed that BDE-209 significantly inhibited bacterial diversity and metabolic functions in the sediments. Planting H. verticillata effectively alleviated the adverse impacts of BDE-209 by reducing its residuals, increasing organic carbon, and modifying metabolic profiles.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Aihua Wang, Mengchang He, Huiji Liu, Wei Ouyang, Xinyi Liu, Qin Li, Chunye Lin, Xitao Liu
Summary: This study investigated the diversity, composition, and co-occurrence patterns of bacterial communities in aquatic systems impacted by nonferrous metal mines. The results showed significant differences in the bacterial communities between river sediments and lake sediments, indicating distributional heterogeneity. The study also identified the importance of metal(loid) contents, pH, and other environmental factors in shaping the distribution of bacterial communities. Additionally, the study found that in environments with higher metal(loid) pollution risks, bacterial co-occurrence networks exhibited higher modularity and connectivity.
ENVIRONMENTAL POLLUTION
(2023)
