Resolving environmental drivers of microbial community structure in Antarctic soils
Abstract Antarctic soils are extremely cold, dry, and oligotrophic, yet harbour surprisingly high bacterial diversity. The severity of environmental conditions has constrained the development of multi-trophic communities, and species richness and distribution is thought to be driven primarily by abi...
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crcambridgeupr:10.1017/s0954102010000763 2024-03-03T08:38:29+00:00 Resolving environmental drivers of microbial community structure in Antarctic soils Smith, Julie L. Barrett, John E. Tusnády, Gábor Rejtö, Lídia Cary, S. Craig 2010 http://dx.doi.org/10.1017/s0954102010000763 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102010000763 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 22, issue 6, page 673-680 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2010 crcambridgeupr https://doi.org/10.1017/s0954102010000763 2024-02-08T08:37:35Z Abstract Antarctic soils are extremely cold, dry, and oligotrophic, yet harbour surprisingly high bacterial diversity. The severity of environmental conditions has constrained the development of multi-trophic communities, and species richness and distribution is thought to be driven primarily by abiotic factors. Sites in northern and southern Victoria Land were sampled for bacterial community structure and soil physicochemical properties in conjunction with the US and New Zealand Latitudinal Gradient Project. Bacterial community structure was determined using a high-resolution molecular fingerprinting method for 80 soil samples from Taylor Valley and Cape Hallett sites which are separated by five degrees of latitude and have distinct soil chemistry. Taylor Valley is part of the McMurdo Dry Valleys, while Cape Hallett is the site of a penguin rookery and contains ornithogenic soils. The influence of soil moisture, pH, conductivity, ammonia, nitrate, total nitrogen and organic carbon on community structure was revealed using Spearman rank correlation, Mantel test, and principal components analysis. High spatial variability was detected in bacterial communities and community structure was correlated with soil moisture and pH. Both unique and shared bacterial community members were detected at Taylor Valley and Cape Hallett despite the considerable distance between the sites. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science McMurdo Dry Valleys Victoria Land Cambridge University Press Antarctic Victoria Land McMurdo Dry Valleys New Zealand Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Cape Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Antarctic Science 22 6 673 680 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Smith, Julie L. Barrett, John E. Tusnády, Gábor Rejtö, Lídia Cary, S. Craig Resolving environmental drivers of microbial community structure in Antarctic soils |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Antarctic soils are extremely cold, dry, and oligotrophic, yet harbour surprisingly high bacterial diversity. The severity of environmental conditions has constrained the development of multi-trophic communities, and species richness and distribution is thought to be driven primarily by abiotic factors. Sites in northern and southern Victoria Land were sampled for bacterial community structure and soil physicochemical properties in conjunction with the US and New Zealand Latitudinal Gradient Project. Bacterial community structure was determined using a high-resolution molecular fingerprinting method for 80 soil samples from Taylor Valley and Cape Hallett sites which are separated by five degrees of latitude and have distinct soil chemistry. Taylor Valley is part of the McMurdo Dry Valleys, while Cape Hallett is the site of a penguin rookery and contains ornithogenic soils. The influence of soil moisture, pH, conductivity, ammonia, nitrate, total nitrogen and organic carbon on community structure was revealed using Spearman rank correlation, Mantel test, and principal components analysis. High spatial variability was detected in bacterial communities and community structure was correlated with soil moisture and pH. Both unique and shared bacterial community members were detected at Taylor Valley and Cape Hallett despite the considerable distance between the sites. |
format |
Article in Journal/Newspaper |
author |
Smith, Julie L. Barrett, John E. Tusnády, Gábor Rejtö, Lídia Cary, S. Craig |
author_facet |
Smith, Julie L. Barrett, John E. Tusnády, Gábor Rejtö, Lídia Cary, S. Craig |
author_sort |
Smith, Julie L. |
title |
Resolving environmental drivers of microbial community structure in Antarctic soils |
title_short |
Resolving environmental drivers of microbial community structure in Antarctic soils |
title_full |
Resolving environmental drivers of microbial community structure in Antarctic soils |
title_fullStr |
Resolving environmental drivers of microbial community structure in Antarctic soils |
title_full_unstemmed |
Resolving environmental drivers of microbial community structure in Antarctic soils |
title_sort |
resolving environmental drivers of microbial community structure in antarctic soils |
publisher |
Cambridge University Press (CUP) |
publishDate |
2010 |
url |
http://dx.doi.org/10.1017/s0954102010000763 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102010000763 |
long_lat |
ENVELOPE(163.000,163.000,-77.617,-77.617) ENVELOPE(170.217,170.217,-72.317,-72.317) ENVELOPE(170.217,170.217,-72.317,-72.317) |
geographic |
Antarctic Victoria Land McMurdo Dry Valleys New Zealand Taylor Valley Hallett Cape Hallett |
geographic_facet |
Antarctic Victoria Land McMurdo Dry Valleys New Zealand Taylor Valley Hallett Cape Hallett |
genre |
Antarc* Antarctic Antarctic Science McMurdo Dry Valleys Victoria Land |
genre_facet |
Antarc* Antarctic Antarctic Science McMurdo Dry Valleys Victoria Land |
op_source |
Antarctic Science volume 22, issue 6, page 673-680 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102010000763 |
container_title |
Antarctic Science |
container_volume |
22 |
container_issue |
6 |
container_start_page |
673 |
op_container_end_page |
680 |
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1792506875637399552 |