Bacteria and Archaea Communities in Cerrado Natural Pond Sediments

Silveira, Rafaella; Silva, Maria Regina Silveira Sartori; Mello, Thiago de Roure Bandeira de; Alvim, Elisa Araújo Cunha Carvalho; Marques, Nubia; Krüger, Ricardo Henrique; Bustamante, Mercedes Maria da Cunha

doi:10.1007/s00248-020-01574-x

Cited by 11 publications

(4 citation statements)

References 54 publications

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“…Salinity has been considered as a stress factor of bacteria community and can affect bacteria respiratory activity, membrance polarization and integrity, and DNA and RNA contents [ 48 , 49 ]; therefore, salinity has been reported to be a major determinant affecting the biogeographic pattern of bacterial communities across lake and marine ecosystems [ 50 ]. For planktonic archaea, although Crenarchaeota, Euryarchaeota and Thaumarchaeota are well known as the dominant archaea in brackish and pond sediment [ 51 , 52 ], Nanoarchaeaeota are the top one in this study (Fig. 3 ), indicating their pervasiveness in the coastal wetland waters.…”

Section: Discussionmentioning

confidence: 80%

Co-occurrence of planktonic bacteria and archaea affects their biogeographic patterns in China’s coastal wetlands

Wang

Liu

Yang

et al. 2021

Environmental Microbiome

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Planktonic bacteria and archaea play a key role in maintaining ecological functions in aquatic ecosystems; however, their biogeographic patterns and underlying mechanisms have not been well known in coastal wetlands including multiple types and at a large space scale. Therefore, planktonic bacteria and archaea and related environmental factors were investigated in twenty-one wetlands along China’s coast to understand the above concerns. The results indicated that planktonic bacteria had different biogeographic pattern from planktonic archaea, and both patterns were not dependent on the wetland's types. Deterministic selection shapes the former’s community structure, whereas stochastic processes regulate the latter’s, being consistent with the fact that planktonic archaea have a larger niche breadth than planktonic bacteria. Planktonic bacteria and archaea co-occur, and their co-occurrence rather than salinity is more important in shaping their community structure although salinity is found to be a main environmental deterministic factor in the coastal wetland waters. This study highlights the role of planktonic bacteria-archaea co-occurrence on their biogeographic patterns, and thus provides a new insight into studying underlying mechanisms of microbial biogeography in coastal wetlands.

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Section: Discussionmentioning

confidence: 80%

Co-occurrence of planktonic bacteria and archaea affects their biogeographic patterns in China’s coastal wetlands

Wang

Liu

Yang

et al. 2021

Environmental Microbiome

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“…Samples (0.125 g) were collected for digestion using HCl-HNO3-HF-HClO4 microwave digestion, and certain potentially-toxic elements (Mn and V) were determined by inductively coupled Because the changes in potentially-toxic elements in modern sediments (0-5 cm) were studied this reflected the possible impact of modern human activities on lake sediments. Surface sediments (0-5 cm) are the main layer of water-sediment interaction, and the layer where biological activities are relatively active [31][32][33]. The sampling protocol was mainly based on the shape of Bosten Lake and the spatial interpolation of PTEs.…”

Section: Sampling and Analysismentioning

confidence: 99%

Spatial Distribution and Ecological Risks of the Potentially-Toxic Elements in the Surface Sediments of Lake Bosten, China

Abuduwaili

Liu

2020

Toxics

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Aiming at the pollution and ecological hazards of the lake sediments of Bosten Lake, once China’s largest inland lake, the spatial distribution and influencing factors of the potentially-toxic elements in its surface sediments were studied with the methods of spatial autocorrelation, two-way cluster analysis, and redundancy analysis. Finally, based on the background value of potentially-toxic elements extracted from a sediment core, a comprehensive evaluation of the risk of these potentially-toxic elements was conducted with the potential-ecological-risk index and the pollution-load index. With data on the grain size, bulk-rock composition, and organic matter content, this comprehensive analysis suggested that with the enrichment of authigenic carbonate minerals, the content of potentially-toxic elements exhibited distinctive characteristics representative of arid regions with lower values than those in humid region. All potentially-toxic elements revealed a significant spatial autocorrelation, and high-value areas mainly occurred in the middle and southwest. The content of potentially-toxic elements is related to Al2O3, K2O, Fe2O3, TiO2, MgO, and MnO, and the storage medium of potentially-toxic elements mainly consists of small particles with a grain size <16 μm. The pollution load index (PLI) for the whole lake due to the potentially-toxic elements was 1.31, and the surface area with a PLI higher than 1 and a moderate pollution level accounted for 87.2% of the total lake area. The research conclusions have an important scientific value for future lake ecological quality assessment and lake environment governance.

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“…Improving the restoring ability of microbes before microbial diversity is disturbed, or recovering the balancing ability of microbes after microbial diversity is disturbed will bring significant benefits and contributes to ecosystem restoration in the environment. The high diversity and abundance of microorganisms can stabilize and restore environmental changes 21,22 . Fluctuations over time (seasonal patterns) and space (thermal layers) may affect the ratio between different ecotypes, but the OTUs in the community remain detectable throughout the year.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, NH has been developed into a wetland park, which is more disturbed by human factors than the other two lakes. Comparison of Shannon index demonstrates that diversity of collapse lakes in Huaibei surpasses the sediment microbial communities in natural ponds of Cerrado Bay, Brazil, and the two major freshwater lakes of Yunnan www.nature.com/scientificreports/ province, China (Dian Lake and Erhai Lake) 21,23 . The reason for the abundant bacterial diversity in the sediments of the collapsed lakes of Huaibei may be similar to the rhizosphere effect, and the existence of large aquatic plants in the collapsed lake has a promoting effect 24 .…”

Section: Discussionmentioning

confidence: 99%

Bacterial diversity in surface sediments of collapsed lakes in Huaibei, China

Shen

Shang

Wang

et al. 2022

Sci Rep

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The collapse lake area due to coal mining in Huaibei shows high biodiversity, but the bacterial community composition and diversity in the lake sediments are still rarely studied. Therefore, based on 16S rRNA high-throughput sequencing and combined with analysis of environmental factors, we comparatively analyzed the bacterial community composition and diversity of surface sediments from East Lake (DH) and South Lake (NH) and Middle Lake (ZH) in the collapse lake area of Huaibei. The bacterial community compositions are significantly different in the sediments among Huaibei collapsed lakes, with DH having the largest number of species, and NH having a higher species diversity. Pseudomonadota is the most abundant phylum in the sediments of DH and NH, while the most abundant phyla in ZH are Bacteroidales, Chloroflexales, Acidobacteriales, and Firmicutes. Anaerolineae (24.05% ± 0.20%) is the most abundant class in the DH sediments, and Gammaproteobacteria (25.94% ± 0.40%) dominates the NH sediments, Bacteroidia (32.12% ± 1.32%) and Clostridia (21.98% ± 0.90%) contribute more than 50% to the bacteria in the sediments of ZH. Redundancy analysis (RDA) shows that pH, TN, and TP are the main environmental factors affecting the bacterial community composition in the sediments of the collapsed lake area. The results reveal the bacterial community composition and biodiversity in the sediments of the Huaibei coal mining collapsed lakes, and provide new insights for the subsequent ecological conservation and restoration of the coal mining collapsed lakes.

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Bacteria and Archaea Communities in Cerrado Natural Pond Sediments

Cited by 11 publications

References 54 publications

Co-occurrence of planktonic bacteria and archaea affects their biogeographic patterns in China’s coastal wetlands

Co-occurrence of planktonic bacteria and archaea affects their biogeographic patterns in China’s coastal wetlands

Spatial Distribution and Ecological Risks of the Potentially-Toxic Elements in the Surface Sediments of Lake Bosten, China

Bacterial diversity in surface sediments of collapsed lakes in Huaibei, China

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