Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs
The Antarctic terrestrial environment harbors a diverse community of microorganisms, which have adapted to the extreme conditions. The aim of this study was to describe the composition of microbial communities in a diverse range of terrestrial environments (various biocrusts and soils, sands from ep...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1323148/full |
| _version_ | 1797365501459955712 |
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| author | Ekaterina Pushkareva Josef Elster Josef Elster Sakae Kudoh Sakae Kudoh Satoshi Imura Satoshi Imura Burkhard Becker |
| author_facet | Ekaterina Pushkareva Josef Elster Josef Elster Sakae Kudoh Sakae Kudoh Satoshi Imura Satoshi Imura Burkhard Becker |
| author_sort | Ekaterina Pushkareva |
| collection | DOAJ |
| description | The Antarctic terrestrial environment harbors a diverse community of microorganisms, which have adapted to the extreme conditions. The aim of this study was to describe the composition of microbial communities in a diverse range of terrestrial environments (various biocrusts and soils, sands from ephemeral wetlands, biofilms, endolithic and hypolithic communities) in East Antarctica using both molecular and morphological approaches. Amplicon sequencing of the 16S rRNA gene revealed the dominance of Chloroflexi, Cyanobacteria and Firmicutes, while sequencing of the 18S rRNA gene showed the prevalence of Alveolata, Chloroplastida, Metazoa, and Rhizaria. This study also provided a comprehensive assessment of the microphototrophic community revealing a diversity of cyanobacteria and eukaryotic microalgae in various Antarctic terrestrial samples. Filamentous cyanobacteria belonging to the orders Oscillatoriales and Pseudanabaenales dominated prokaryotic community, while members of Trebouxiophyceae were the most abundant representatives of eukaryotes. In addition, the co-occurrence analysis showed a prevalence of positive correlations with bacterial taxa frequently co-occurring together. |
| first_indexed | 2024-03-08T16:49:53Z |
| format | Article |
| id | doaj.art-3f930add86354bbb8bcbb3c27ad16c6a |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-03-08T16:49:53Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-3f930add86354bbb8bcbb3c27ad16c6a2024-01-05T04:56:29ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-01-011410.3389/fmicb.2023.13231481323148Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophsEkaterina Pushkareva0Josef Elster1Josef Elster2Sakae Kudoh3Sakae Kudoh4Satoshi Imura5Satoshi Imura6Burkhard Becker7Department of Biology, Botanical Institute, University of Cologne, Cologne, GermanyInstitute of Botany, Academy of Sciences of the Czech Republic, Třeboň, CzechiaCentre for Polar Ecology, University of South Bohemia, České Budějovice, CzechiaDepartment of Polar Science, The Graduate University for Advanced Studies, SOKENDAI, Tachikawa, JapanNational Institute of Polar Research, Research Organization of Information and Systems, Tachikawa, JapanDepartment of Polar Science, The Graduate University for Advanced Studies, SOKENDAI, Tachikawa, JapanNational Institute of Polar Research, Research Organization of Information and Systems, Tachikawa, JapanDepartment of Biology, Botanical Institute, University of Cologne, Cologne, GermanyThe Antarctic terrestrial environment harbors a diverse community of microorganisms, which have adapted to the extreme conditions. The aim of this study was to describe the composition of microbial communities in a diverse range of terrestrial environments (various biocrusts and soils, sands from ephemeral wetlands, biofilms, endolithic and hypolithic communities) in East Antarctica using both molecular and morphological approaches. Amplicon sequencing of the 16S rRNA gene revealed the dominance of Chloroflexi, Cyanobacteria and Firmicutes, while sequencing of the 18S rRNA gene showed the prevalence of Alveolata, Chloroplastida, Metazoa, and Rhizaria. This study also provided a comprehensive assessment of the microphototrophic community revealing a diversity of cyanobacteria and eukaryotic microalgae in various Antarctic terrestrial samples. Filamentous cyanobacteria belonging to the orders Oscillatoriales and Pseudanabaenales dominated prokaryotic community, while members of Trebouxiophyceae were the most abundant representatives of eukaryotes. In addition, the co-occurrence analysis showed a prevalence of positive correlations with bacterial taxa frequently co-occurring together.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1323148/fullEast Antarcticaterrestrial environmentamplicon sequencingcyanobacteriaeukaryotic microalgae |
| spellingShingle | Ekaterina Pushkareva Josef Elster Josef Elster Sakae Kudoh Sakae Kudoh Satoshi Imura Satoshi Imura Burkhard Becker Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs Frontiers in Microbiology East Antarctica terrestrial environment amplicon sequencing cyanobacteria eukaryotic microalgae |
| title | Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs |
| title_full | Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs |
| title_fullStr | Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs |
| title_full_unstemmed | Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs |
| title_short | Microbial community composition of terrestrial habitats in East Antarctica with a focus on microphototrophs |
| title_sort | microbial community composition of terrestrial habitats in east antarctica with a focus on microphototrophs |
| topic | East Antarctica terrestrial environment amplicon sequencing cyanobacteria eukaryotic microalgae |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1323148/full |
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