Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica
Understanding the environmental factors that shape microbial communities is crucial, especially in extreme environments, like Antarctica. Two main forces were reported to influence Antarctic soil microbes: birds and plants. Both birds and plants are currently undergoing relatively large changes in t...
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ftpubmed:oai:pubmedcentral.nih.gov:3688718 2023-05-15T14:02:23+02:00 Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica Teixeira, Lia C. R. S. Yeargeau, Etienne Balieiro, Fabiano C. Piccolo, Marisa C. Peixoto, Raquel S. Greer, Charles W. Rosado, Alexandre S. 2013-06-20 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3688718 http://www.ncbi.nlm.nih.gov/pubmed/23840411 https://doi.org/10.1371/journal.pone.0066109 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3688718 http://www.ncbi.nlm.nih.gov/pubmed/23840411 http://dx.doi.org/10.1371/journal.pone.0066109 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2013 ftpubmed https://doi.org/10.1371/journal.pone.0066109 2013-09-05T01:24:37Z Understanding the environmental factors that shape microbial communities is crucial, especially in extreme environments, like Antarctica. Two main forces were reported to influence Antarctic soil microbes: birds and plants. Both birds and plants are currently undergoing relatively large changes in their distribution and abundance due to global warming. However, we need to clearly understand the relationship between plants, birds and soil microorganisms. We therefore collected rhizosphere and bulk soils from six different sampling sites subjected to different levels of bird influence and colonized by Colobanthus quitensis and Deschampsia antarctica in Admiralty Bay, King George Island, Maritime Antarctic. Microarray and qPCR assays targeting 16S rRNA genes of specific taxa were used to assess microbial community structure, composition and abundance and analyzed with a range of soil physico-chemical parameters. The results indicated significant rhizosphere effects in four out of the six sites, including areas with different levels of bird influence. Acidobacteria were significantly more abundant in soils with little bird influence (low nitrogen) and in bulk soil. In contrast, Actinobacteria were significantly more abundant in the rhizosphere of both plant species. At two of the sampling sites under strong bird influence (penguin colonies), Firmicutes were significantly more abundant in D. antarctica rhizosphere but not in C. quitensis rhizosphere. The Firmicutes were also positively and significantly correlated to the nitrogen concentrations in the soil. We conclude that the microbial communities in Antarctic soils are driven both by bird and plants, and that the effect is taxa-specific. Text Antarc* Antarctic Antarctica King George Island PubMed Central (PMC) Admiralty Bay Antarctic King George Island PLoS ONE 8 6 e66109 |
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Research Article Teixeira, Lia C. R. S. Yeargeau, Etienne Balieiro, Fabiano C. Piccolo, Marisa C. Peixoto, Raquel S. Greer, Charles W. Rosado, Alexandre S. Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica |
topic_facet |
Research Article |
description |
Understanding the environmental factors that shape microbial communities is crucial, especially in extreme environments, like Antarctica. Two main forces were reported to influence Antarctic soil microbes: birds and plants. Both birds and plants are currently undergoing relatively large changes in their distribution and abundance due to global warming. However, we need to clearly understand the relationship between plants, birds and soil microorganisms. We therefore collected rhizosphere and bulk soils from six different sampling sites subjected to different levels of bird influence and colonized by Colobanthus quitensis and Deschampsia antarctica in Admiralty Bay, King George Island, Maritime Antarctic. Microarray and qPCR assays targeting 16S rRNA genes of specific taxa were used to assess microbial community structure, composition and abundance and analyzed with a range of soil physico-chemical parameters. The results indicated significant rhizosphere effects in four out of the six sites, including areas with different levels of bird influence. Acidobacteria were significantly more abundant in soils with little bird influence (low nitrogen) and in bulk soil. In contrast, Actinobacteria were significantly more abundant in the rhizosphere of both plant species. At two of the sampling sites under strong bird influence (penguin colonies), Firmicutes were significantly more abundant in D. antarctica rhizosphere but not in C. quitensis rhizosphere. The Firmicutes were also positively and significantly correlated to the nitrogen concentrations in the soil. We conclude that the microbial communities in Antarctic soils are driven both by bird and plants, and that the effect is taxa-specific. |
format |
Text |
author |
Teixeira, Lia C. R. S. Yeargeau, Etienne Balieiro, Fabiano C. Piccolo, Marisa C. Peixoto, Raquel S. Greer, Charles W. Rosado, Alexandre S. |
author_facet |
Teixeira, Lia C. R. S. Yeargeau, Etienne Balieiro, Fabiano C. Piccolo, Marisa C. Peixoto, Raquel S. Greer, Charles W. Rosado, Alexandre S. |
author_sort |
Teixeira, Lia C. R. S. |
title |
Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica |
title_short |
Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica |
title_full |
Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica |
title_fullStr |
Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica |
title_full_unstemmed |
Plant and Bird Presence Strongly Influences the Microbial Communities in Soils of Admiralty Bay, Maritime Antarctica |
title_sort |
plant and bird presence strongly influences the microbial communities in soils of admiralty bay, maritime antarctica |
publisher |
Public Library of Science |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3688718 http://www.ncbi.nlm.nih.gov/pubmed/23840411 https://doi.org/10.1371/journal.pone.0066109 |
geographic |
Admiralty Bay Antarctic King George Island |
geographic_facet |
Admiralty Bay Antarctic King George Island |
genre |
Antarc* Antarctic Antarctica King George Island |
genre_facet |
Antarc* Antarctic Antarctica King George Island |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3688718 http://www.ncbi.nlm.nih.gov/pubmed/23840411 http://dx.doi.org/10.1371/journal.pone.0066109 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0066109 |
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PLoS ONE |
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8 |
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6 |
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e66109 |
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