Distribution of Archaeal and Bacterial communities in a subtropical reservoir

Soares, Laís Américo; Santos, André Cordeiro Alves dos; Duarte, Iolanda Cristina Silveira; Romagnoli, Emiliana Manesco; Calijuri, Maria do Carmo

doi:10.1590/s2179-975x3615

Cited by 3 publications

(1 citation statement)

References 37 publications

(34 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, we investigated the distribution of bacterial communities in the surface and bottom layers of the Billings Reservoir, as well as the environmental conditions that influence their composition. Our results demonstrated that the overall α bacterial diversity represented by the Shannon index was relatively higher in the Billings Reservoir than in other studied freshwater systems: Itupararanga Reservoir, State of São Paulo, Brazil [ 52 ], in Pavin Lake [ 53 ], and Mayinghai, Pipahai, and Gonghai Lakes in China [ 54 ]. Perhaps the greatest value of biodiversity is attributed to intensive anthropogenic disturbance in the reservoir, which may have resulted in increased nutrient discharges, resulting in greater nitrogen and phosphorus concentrations, as indicated in this study.…”

Section: Discussionmentioning

confidence: 82%

Characterization of Bacterial Communities from the Surface and Adjacent Bottom Layers of Water in the Billings Reservoir

Marcondes

Nascimento

Pessôa

et al. 2022

Life

View full text Add to dashboard Cite

Here, we describe the bacterial diversity and physicochemical properties in freshwater samples from the surface and bottom layers of the Billings Reservoir, the largest open-air storage ecosystem in the São Paulo (Brazil) metropolitan area. Forty-four samples (22 from the surface and 22 from the bottom layers) were characterized based on 16S rRNA gene analysis using Illumina MiSeq. Taxonomical composition revealed an abundance of the Cyanobacteria phylum, followed by Proteobacteria, which were grouped into 1903 and 2689 different genera in the surface and the deep-water layers, respectively. Chroobacteria, Actinobacteria, Betaproteobacteria, and Alphaproteobacteria were the most dominant classes. The Shannon diversity index was in the range of 2.3–5.39 and 4.04–6.86 in the surface and bottom layers, respectively. Flavobacterium was the most predominant pathogenic genus. Temperature and phosphorus concentrations were among the most influential factors in shaping the microbial communities of both layers. Predictive functional analysis suggests that the reservoir is enriched in motility genes involved in flagellar assembly. The overall results provide new information on the diversity composition, ecological function, and health risks of the bacterial community detected in the Billings freshwater reservoir. The broad bacterial diversity indicates that the bacterioplankton communities in the reservoir were involved in multiple essential environmental processes.

show abstract

Section: Discussionmentioning

confidence: 82%

Characterization of Bacterial Communities from the Surface and Adjacent Bottom Layers of Water in the Billings Reservoir

Marcondes

Nascimento

Pessôa

et al. 2022

Life

View full text Add to dashboard Cite

show abstract

Abundance and Co-Distribution of Widespread Marine Archaeal Lineages in Surface Sediments of Freshwater Water Bodies across the Iberian Peninsula

et al. 2017

View full text Add to dashboard Cite

Archaea inhabiting marine and freshwater sediments have a relevant role in organic carbon mineralization, affecting carbon fluxes at a global scale. Despite current evidences suggesting that freshwater sediments largely contribute to this process, few large-scale surveys have been addressed to uncover archaeal diversity and abundance in freshwater sedimentary habitats. In this work, we quantified and high-throughput sequenced the archaeal 16S rRNA gene from surficial sediments collected in 21 inland waterbodies across the Iberian Peninsula differing in typology and trophic status. Whereas methanogenic groups were dominant in most of the studied systems, especially in organic-rich sediments, archaea affiliated to widespread marine lineages (the Bathyarchaeota and the Thermoplasmata) were also ubiquitous and particularly abundant in euxinic sediments. In these systems, Bathyarchaeota communities were dominated by subgroups Bathyarchaeota-6 (87.95 ± 12.71%) and Bathyarchaeota-15 (8.17 ± 9.2%) whereas communities of Thermoplasmata were mainly composed of members of the order Thermoplasmatales. Our results also indicate that Archaea accounted for a minor fraction of sedimentary prokaryotes despite remarkable exceptions in reservoirs and some stratified lakes. Copy numbers of archaeal and bathyarchaeotal 16S rRNA genes were significantly different when compared according to system type (i.e., lakes, ponds, and reservoirs), but no differences were obtained when compared according to their trophic status (from oligotrophy to eutrophy). Interestingly, we obtained significant correlations between the abundance of reads (Spearman r = 0.5, p = 0.021) and OTU richness (Spearman r = 0.677, p < 0.001) of Bathyarchaeota and Thermoplasmata across systems, reinforcing the hypothesis of a potential syntrophic interaction between members of both lineages.

show abstract

Spatial Variation and Environmental Parameters Affecting the Abundant and Rare Communities of Bacteria and Archaea in the Sediments of Tropical Urban Reservoirs

et al. 2022

View full text Add to dashboard Cite

Distribution of Archaeal and Bacterial communities in a subtropical reservoir

Cited by 3 publications

References 37 publications

Characterization of Bacterial Communities from the Surface and Adjacent Bottom Layers of Water in the Billings Reservoir

Characterization of Bacterial Communities from the Surface and Adjacent Bottom Layers of Water in the Billings Reservoir

Abundance and Co-Distribution of Widespread Marine Archaeal Lineages in Surface Sediments of Freshwater Water Bodies across the Iberian Peninsula

Spatial Variation and Environmental Parameters Affecting the Abundant and Rare Communities of Bacteria and Archaea in the Sediments of Tropical Urban Reservoirs

Contact Info

Product

Resources

About