Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord
The assembly processes that underlie the composition and connectivity of free-living (FL) and particle-associated (PA) bacterial communities from surface to deep waters remain little understood. Here, using phylogenetic null modeling, we quantify the relative influence of selective and stochastic me...
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ftpubmed:oai:pubmedcentral.nih.gov:8536490 2023-05-15T14:57:40+02:00 Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord Jain, Anand Balmonte, John Paul Singh, Richa Bhaskar, Parli Venkateswaran Krishnan, Kottekkatu Padinchati 2021-10-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8536490/ http://www.ncbi.nlm.nih.gov/pubmed/34626180 https://doi.org/10.1093/femsec/fiab139 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8536490/ http://www.ncbi.nlm.nih.gov/pubmed/34626180 http://dx.doi.org/10.1093/femsec/fiab139 © The Author(s) 2021. Published by Oxford University Press on behalf of FEMS. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com CC-BY-NC FEMS Microbiol Ecol Research Article Text 2021 ftpubmed https://doi.org/10.1093/femsec/fiab139 2021-10-31T00:35:16Z The assembly processes that underlie the composition and connectivity of free-living (FL) and particle-associated (PA) bacterial communities from surface to deep waters remain little understood. Here, using phylogenetic null modeling, we quantify the relative influence of selective and stochastic mechanisms that assemble FL and PA bacterial communities throughout the water column in a high Arctic fjord. We demonstrate that assembly processes acting on FL and PA bacterial communities are similar in surface waters, but become increasingly distinct in deep waters. As depth increases, the relative influence of homogeneous selection increases for FL but decreases for PA communities. In addition, dispersal limitation and variable selection increase with depth for PA, but not for FL communities, indicating increased residence time of taxa on particles and less frequent decolonization. As a consequence, beta diversity of PA communities is greater in bottom than in surface waters. The limited connectivity between these communities with increasing depth leads to highly distinct FL and PA bacterial communities in bottom waters. Finally, depth-related trends for FL and PA beta diversity and connectivity in this study are consistent with previous observations in the open ocean, suggesting that assembly processes for FL and PA bacterial communities may also be distinct in other aquatic environments. Text Arctic PubMed Central (PMC) Arctic FEMS Microbiology Ecology 97 11 |
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Research Article Jain, Anand Balmonte, John Paul Singh, Richa Bhaskar, Parli Venkateswaran Krishnan, Kottekkatu Padinchati Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord |
topic_facet |
Research Article |
description |
The assembly processes that underlie the composition and connectivity of free-living (FL) and particle-associated (PA) bacterial communities from surface to deep waters remain little understood. Here, using phylogenetic null modeling, we quantify the relative influence of selective and stochastic mechanisms that assemble FL and PA bacterial communities throughout the water column in a high Arctic fjord. We demonstrate that assembly processes acting on FL and PA bacterial communities are similar in surface waters, but become increasingly distinct in deep waters. As depth increases, the relative influence of homogeneous selection increases for FL but decreases for PA communities. In addition, dispersal limitation and variable selection increase with depth for PA, but not for FL communities, indicating increased residence time of taxa on particles and less frequent decolonization. As a consequence, beta diversity of PA communities is greater in bottom than in surface waters. The limited connectivity between these communities with increasing depth leads to highly distinct FL and PA bacterial communities in bottom waters. Finally, depth-related trends for FL and PA beta diversity and connectivity in this study are consistent with previous observations in the open ocean, suggesting that assembly processes for FL and PA bacterial communities may also be distinct in other aquatic environments. |
format |
Text |
author |
Jain, Anand Balmonte, John Paul Singh, Richa Bhaskar, Parli Venkateswaran Krishnan, Kottekkatu Padinchati |
author_facet |
Jain, Anand Balmonte, John Paul Singh, Richa Bhaskar, Parli Venkateswaran Krishnan, Kottekkatu Padinchati |
author_sort |
Jain, Anand |
title |
Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord |
title_short |
Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord |
title_full |
Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord |
title_fullStr |
Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord |
title_full_unstemmed |
Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord |
title_sort |
spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high arctic fjord |
publisher |
Oxford University Press |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8536490/ http://www.ncbi.nlm.nih.gov/pubmed/34626180 https://doi.org/10.1093/femsec/fiab139 |
geographic |
Arctic |
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Arctic |
genre |
Arctic |
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Arctic |
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FEMS Microbiol Ecol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8536490/ http://www.ncbi.nlm.nih.gov/pubmed/34626180 http://dx.doi.org/10.1093/femsec/fiab139 |
op_rights |
© The Author(s) 2021. Published by Oxford University Press on behalf of FEMS. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1093/femsec/fiab139 |
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FEMS Microbiology Ecology |
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97 |
container_issue |
11 |
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1766329804870647808 |