Structure of Microbial Communities of the Sediments of Alkaline Transbaikalia Lakes with Different Salinity

Zaitseva, S. V.; Abidueva, E. Yu.; Radnagurueva, A. A.; Базаров, С. М.; Buryukhaev, S. P.

doi:10.1134/s0026261718040185

Cited by 7 publications

(4 citation statements)

References 28 publications

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“…Table 2). These were Woesearchaeota, a mainly halophilic phylum and potentially syntrophic within methanogens (Liu et al, 2018; Ortiz-Alvarez & Casamayor, 2016), and Euryarchaeota, within which we found four halophilic genera: Halovivax , Halorubrum, Halorussus and Haloasta , all of them previously reported within saline habitats and sediments (McGonigle et al, 2019; Zaitseva et al, 2018). The metagenomic data (Medina-Chávez et al, 2020) and the 16S rRNA gene amplicons were sampled from the same pond at different times and space, and both showed lineages common to hypersaline habitats.…”

Section: Discussionsupporting

confidence: 60%

“…Fig. 1A); these were Woesearchaeota, a phylum that potentially has a syntrophic interaction with methanogens (Liu et al, 2018;Ortiz-Alvarez & Casamayor, 2016), and Euryarchaeota, within which we found four halophilic genera: Halovivax, Halorubrum, Halorussus and Haloasta, all of them previously reported in saline habitats and sediments (McGonigle et al, 2019;Zaitseva et al, 2018).…”

Section: Archaeasupporting

confidence: 55%

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Diversity of an uncommon elastic hypersaline microbial mat along a small-scale transect

Espinosa-Asuar

Monroy

Madrigal-Trejo

et al. 2021

Preprint

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We evaluated the microbial diversity and metabolomic signatures of a hypersaline elastic microbial mat from Cuatro Cienegas Basin (CCB) in the Chihuahuan Desert of Coahuila, Mexico. We collected ten samples within a small scale (1.5-meters transect) and found a high microbial diversity through NGS-based ITS and 16S rRNA gene sequencing. A very low number of taxa were abundant and shared between all sites, whereas the rare biosphere was more phylogenetically diverse (FPD index) and phylogenetically disperse (PSC index) than the abundant taxa for both analyzed libraries. In regard to potential biotic interactions (Pearson analysis), there were more positive correlations than negative. We also found a distinctive metabolomic signature for each sample and were able to tentatively annotate several classes of compounds with relevant biological properties. Together, these results reveal cohesive, diverse and fluctuating microbial communities, where abundant and rare taxa appear to have different ecological roles.

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Section: Discussionsupporting

confidence: 60%

Section: Archaeasupporting

confidence: 55%

Diversity of an uncommon elastic hypersaline microbial mat along a small-scale transect

Espinosa-Asuar

Monroy

Madrigal-Trejo

et al. 2021

Preprint

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“…We detected two main phyla ( Fig. S1A ); these were Woesearchaeota, a phylum that potentially has a syntrophic interaction with methanogens ( Liu et al, 2018 ; Ortiz-Alvarez & Casamayor, 2016 ), and Euryarchaeota, within which we found four halophilic genera: Halovivax , Halorubrum, Halorussus and Haloasta , all of them previously reported in saline habitats and sediments ( McGonigle et al, 2019 ; Zaitseva et al, 2018 ).…”

Section: Discussionmentioning

confidence: 64%

Diversity of an uncommon elastic hypersaline microbial mat along a small-scale transect

Espinosa-Asuar

Monroy-Guzmán

Madrigal-Trejo

et al. 2022

PeerJ

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We evaluated the microbial diversity and metabolome profile of an uncommon hypersaline elastic microbial mat from Cuatro Ciénegas Basin (CCB) in the Chihuahuan Desert of Coahuila, México. We collected ten samples on a small scale transect (1.5-m) and described its microbial diversity through NGS-based ITS and 16S rDNA gene sequencing. A very low number of taxa comprised a considerable proportion of the mat and were shared across all sampling points, whereas the rare biosphere was more phylogenetically diverse (Faith’s Phylogenetic Diversity (FPD) index) and phylogenetically disperse (using a null model distribution of Phylogenetic Species Clustering (nmdPSC)) than the abundant (high read count) taxa for both analyzed libraries. We also found a distinctive metabolome profile for each sample and were able to tentatively annotate several classes of compounds with relevant biological properties.

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“…Microorganisms-including bacteria, archaea, and microalgae-form the basis of lake ecosystems [5]. Over the years, sequencing approaches have been used to understand the biogeographical distribution of microbial communities in both freshwater [8][9][10][11][12] and saline lakes [13][14][15][16][17][18]. Within lakes and especially saline lakes, microorganisms are important members with their high genetic diversity playing an essential role in element cycling [19,20].…”

Section: Introductionmentioning

confidence: 99%

A Large-Scale Survey of the Bacterial Communities in Lakes of Western Mongolia with Varying Salinity Regimes

et al. 2020

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In recent years, climate change coupled with anthropogenic activities has led to monumental changes in saline lakes which are rapidly drying up across the globe and particularly in Central Asia. The landlocked country of Mongolia is rich in lakes which have remained primarily undisturbed by human impact, and many of these lakes have varying salinity regimes and are located across various geographical landscapes. In this study, we sampled 18 lakes with varying salinity regimes (hyperhaline, mesohaline, oligohaline, and polyhaline) covering 7000 km of western Mongolia and its various geographical landscapes (Gobi Desert, forests, and steppe). We identified that the bacterial communities that dominate these lakes are significantly influenced by salinity (p < 0.001) and geographical landscape (p < 0.001). Further, only five zOTUs were shared in all the lakes across the salinity regimes, providing evidence that both local and regional factors govern the community assembly and composition. Furthermore, the bacterial communities of hyperhaline lakes were significantly positively correlated with salinity (ANOVA, p < 0.001) and arsenic concentrations (ANOVA, p < 0.001), whereas bacterial communities of mesohaline and polyhaline lakes situated in forest and steppe landscapes were positively correlated with temperature (ANOVA, p < 0.001) and altitude (ANOVA, p < 0.001), respectively. Functional predictions based on the 16S rRNA gene indicated enrichment of KEGG Ontology terms related to transporters for osmoprotection and -regulation. Overall, our study provides a comprehensive view of the bacterial diversity and community composition present in these lakes, which might be lost in the future.

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Structure of Microbial Communities of the Sediments of Alkaline Transbaikalia Lakes with Different Salinity

Cited by 7 publications

References 28 publications

Diversity of an uncommon elastic hypersaline microbial mat along a small-scale transect

Diversity of an uncommon elastic hypersaline microbial mat along a small-scale transect

Diversity of an uncommon elastic hypersaline microbial mat along a small-scale transect

A Large-Scale Survey of the Bacterial Communities in Lakes of Western Mongolia with Varying Salinity Regimes

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