Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors
Summary Nitrogen ( N ) deposition in many areas of the world is over an order of magnitude greater than it would be in absence of human activity. We ask how abiotic ( N ) and biotic (plant host and neighborhood) effects interact to influence root‐associated bacterial ( RAB ) community assembly. Usin...
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crwiley:10.1111/1758-2229.12194 2024-06-23T07:57:18+00:00 Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors Dean, Sarah L Farrer, Emily C Porras‐Alfaro, Andrea Suding, Katharine N Sinsabaugh, Robert L National Science Foundation 2014 http://dx.doi.org/10.1111/1758-2229.12194 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1758-2229.12194 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1758-2229.12194/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Microbiology Reports volume 7, issue 1, page 102-110 ISSN 1758-2229 1758-2229 journal-article 2014 crwiley https://doi.org/10.1111/1758-2229.12194 2024-05-31T08:15:21Z Summary Nitrogen ( N ) deposition in many areas of the world is over an order of magnitude greater than it would be in absence of human activity. We ask how abiotic ( N ) and biotic (plant host and neighborhood) effects interact to influence root‐associated bacterial ( RAB ) community assembly. Using 454 pyrosequencing, we examined RAB communities from two dominant alpine tundra plants, G eum rossii and D eschampsia cespitosa , under control, N addition and D . cespitosa removal treatments, implemented in a factorial design. We hypothesized that host would have the strongest effect on RAB assembly, followed by N , then neighbor effects. The most dominant phyla were P roteobacteria (mostly G ammaproteobacteria ), A ctinobacteria , B acteroidetes and A cidobacteria . We found RAB communities were host specific, with only 17% overlap in operational taxonomic units. Host effects on composition were over twice as strong as N effects. D . cespitosa RAB diversity declined with N , while G . rossii RAB did not. D . cespitosa removal did not influence G . rossii RAB community composition, but G . rossii RAB diversity declined with N only when D . cespitosa was absent. We conclude that RAB of both hosts are sensitive to N enrichment, and RAB response to N is influenced by host identity and plant neighborhood. Article in Journal/Newspaper Tundra Wiley Online Library Environmental Microbiology Reports 7 1 102 110 |
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Wiley Online Library |
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English |
description |
Summary Nitrogen ( N ) deposition in many areas of the world is over an order of magnitude greater than it would be in absence of human activity. We ask how abiotic ( N ) and biotic (plant host and neighborhood) effects interact to influence root‐associated bacterial ( RAB ) community assembly. Using 454 pyrosequencing, we examined RAB communities from two dominant alpine tundra plants, G eum rossii and D eschampsia cespitosa , under control, N addition and D . cespitosa removal treatments, implemented in a factorial design. We hypothesized that host would have the strongest effect on RAB assembly, followed by N , then neighbor effects. The most dominant phyla were P roteobacteria (mostly G ammaproteobacteria ), A ctinobacteria , B acteroidetes and A cidobacteria . We found RAB communities were host specific, with only 17% overlap in operational taxonomic units. Host effects on composition were over twice as strong as N effects. D . cespitosa RAB diversity declined with N , while G . rossii RAB did not. D . cespitosa removal did not influence G . rossii RAB community composition, but G . rossii RAB diversity declined with N only when D . cespitosa was absent. We conclude that RAB of both hosts are sensitive to N enrichment, and RAB response to N is influenced by host identity and plant neighborhood. |
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National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Dean, Sarah L Farrer, Emily C Porras‐Alfaro, Andrea Suding, Katharine N Sinsabaugh, Robert L |
spellingShingle |
Dean, Sarah L Farrer, Emily C Porras‐Alfaro, Andrea Suding, Katharine N Sinsabaugh, Robert L Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
author_facet |
Dean, Sarah L Farrer, Emily C Porras‐Alfaro, Andrea Suding, Katharine N Sinsabaugh, Robert L |
author_sort |
Dean, Sarah L |
title |
Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
title_short |
Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
title_full |
Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
title_fullStr |
Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
title_full_unstemmed |
Assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
title_sort |
assembly of root‐associated bacteria communities: interactions between abiotic and biotic factors |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/1758-2229.12194 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1758-2229.12194 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1758-2229.12194/fullpdf |
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Tundra |
genre_facet |
Tundra |
op_source |
Environmental Microbiology Reports volume 7, issue 1, page 102-110 ISSN 1758-2229 1758-2229 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1758-2229.12194 |
container_title |
Environmental Microbiology Reports |
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7 |
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1 |
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102 |
op_container_end_page |
110 |
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1802650862095433728 |