Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats
Abstract Microorganisms in Antarctica are recognized for having crucial roles in ecosystems functioning and biogeochemical cycles. To explore the diversity and composition of microbial communities through different terrestrial and marine Antarctic habitats, we analyze 16S rRNA sequence datasets from...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2023-10-01
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| Series: | Anais da Academia Brasileira de Ciências |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000600901&lng=en&tlng=en |
| _version_ | 1827796366701625344 |
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| author | AMANDA G. BENDIA JULIO CEZAR F. MOREIRA JULIANA C.N. FERREIRA RENATO G. ROMANO IVAN G.C. FERREIRA DIEGO C. FRANCO HEITOR EVANGELISTA ROSALINDA C. MONTONE VIVIAN HELENA PELLIZARI |
| author_facet | AMANDA G. BENDIA JULIO CEZAR F. MOREIRA JULIANA C.N. FERREIRA RENATO G. ROMANO IVAN G.C. FERREIRA DIEGO C. FRANCO HEITOR EVANGELISTA ROSALINDA C. MONTONE VIVIAN HELENA PELLIZARI |
| author_sort | AMANDA G. BENDIA |
| collection | DOAJ |
| description | Abstract Microorganisms in Antarctica are recognized for having crucial roles in ecosystems functioning and biogeochemical cycles. To explore the diversity and composition of microbial communities through different terrestrial and marine Antarctic habitats, we analyze 16S rRNA sequence datasets from fumarole and marine sediments, soil, snow and seawater environments. We obtained measures of alpha- and beta-diversities, as well as we have identified the core microbiome and the indicator microbial taxa of a particular habitat. Our results showed a unique microbial community structure according to each habitat, including specific taxa composing each microbiome. Marine sediments harbored the highest microbial diversity among the analyzed habitats. In the fumarole sediments, the core microbiome was composed mainly of thermophiles and hyperthermophilic Archaea, while in the majority of soil samples Archaea was absent. In the seawater samples, the core microbiome was mainly composed by cultured and uncultured orders usually identified on Antarctic pelagic ecosystems. Snow samples exhibited common taxa previously described for habitats of the Antarctic Peninsula, which suggests long-distance dispersal processes occurring from the Peninsula to the Continent. This study contributes as a baseline for further efforts on evaluating the microbial responses to environmental conditions and future changes. |
| first_indexed | 2024-03-11T19:06:11Z |
| format | Article |
| id | doaj.art-50672dc1198f48d6a6a10e5f9b98aa93 |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-03-11T19:06:11Z |
| publishDate | 2023-10-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-50672dc1198f48d6a6a10e5f9b98aa932023-10-10T07:40:18ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902023-10-0195suppl 310.1590/0001-3765202320211442Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitatsAMANDA G. BENDIAhttps://orcid.org/0000-0003-0042-8990JULIO CEZAR F. MOREIRAhttps://orcid.org/0000-0002-5470-8894JULIANA C.N. FERREIRAhttps://orcid.org/0000-0002-5367-0257RENATO G. ROMANOhttps://orcid.org/0000-0003-3687-5469IVAN G.C. FERREIRAhttps://orcid.org/0000-0001-5077-6382DIEGO C. FRANCOhttps://orcid.org/0000-0002-0731-9511HEITOR EVANGELISTAhttps://orcid.org/0000-0001-9832-1141ROSALINDA C. MONTONEhttps://orcid.org/0000-0002-9586-1000VIVIAN HELENA PELLIZARIhttps://orcid.org/0000-0003-2757-6352Abstract Microorganisms in Antarctica are recognized for having crucial roles in ecosystems functioning and biogeochemical cycles. To explore the diversity and composition of microbial communities through different terrestrial and marine Antarctic habitats, we analyze 16S rRNA sequence datasets from fumarole and marine sediments, soil, snow and seawater environments. We obtained measures of alpha- and beta-diversities, as well as we have identified the core microbiome and the indicator microbial taxa of a particular habitat. Our results showed a unique microbial community structure according to each habitat, including specific taxa composing each microbiome. Marine sediments harbored the highest microbial diversity among the analyzed habitats. In the fumarole sediments, the core microbiome was composed mainly of thermophiles and hyperthermophilic Archaea, while in the majority of soil samples Archaea was absent. In the seawater samples, the core microbiome was mainly composed by cultured and uncultured orders usually identified on Antarctic pelagic ecosystems. Snow samples exhibited common taxa previously described for habitats of the Antarctic Peninsula, which suggests long-distance dispersal processes occurring from the Peninsula to the Continent. This study contributes as a baseline for further efforts on evaluating the microbial responses to environmental conditions and future changes.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000600901&lng=en&tlng=enmicrobial diversitymicrobial indicatorscore microbiomeAntarctic habitats. |
| spellingShingle | AMANDA G. BENDIA JULIO CEZAR F. MOREIRA JULIANA C.N. FERREIRA RENATO G. ROMANO IVAN G.C. FERREIRA DIEGO C. FRANCO HEITOR EVANGELISTA ROSALINDA C. MONTONE VIVIAN HELENA PELLIZARI Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats Anais da Academia Brasileira de Ciências microbial diversity microbial indicators core microbiome Antarctic habitats. |
| title | Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats |
| title_full | Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats |
| title_fullStr | Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats |
| title_full_unstemmed | Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats |
| title_short | Insights into Antarctic microbiomes: diversity patterns for terrestrial and marine habitats |
| title_sort | insights into antarctic microbiomes diversity patterns for terrestrial and marine habitats |
| topic | microbial diversity microbial indicators core microbiome Antarctic habitats. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652023000600901&lng=en&tlng=en |
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