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...
Published in: | FEMS Microbiology Ecology |
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ftsydanskunivpub:oai:sdu.dk:publications/0f66bdb3-2db1-4c52-be62-8003afea9479 2024-04-28T08:04:22+00:00 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 2021-11 application/pdf https://portal.findresearcher.sdu.dk/da/publications/0f66bdb3-2db1-4c52-be62-8003afea9479 https://doi.org/10.1093/femsec/fiab139 https://findresearcher.sdu.dk/ws/files/194917241/fiab139.pdf eng eng https://portal.findresearcher.sdu.dk/da/publications/0f66bdb3-2db1-4c52-be62-8003afea9479 info:eu-repo/semantics/openAccess Jain , A , Balmonte , J P , Singh , R , Bhaskar , P V & Krishnan , K P 2021 , ' Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord ' , FEMS Microbiology Ecology , vol. 97 , no. 11 , fiab139 . https://doi.org/10.1093/femsec/fiab139 bacterial communities community assembly free-living high Arctic Kongsfjorden particle-associated article 2021 ftsydanskunivpub https://doi.org/10.1093/femsec/fiab139 2024-04-03T15:42:04Z 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. Article in Journal/Newspaper Arctic Arctic Kongsfjord* Kongsfjorden University of Southern Denmark Research Portal FEMS Microbiology Ecology 97 11 |
institution |
Open Polar |
collection |
University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
topic |
bacterial communities community assembly free-living high Arctic Kongsfjorden particle-associated |
spellingShingle |
bacterial communities community assembly free-living high Arctic Kongsfjorden particle-associated 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 |
bacterial communities community assembly free-living high Arctic Kongsfjorden particle-associated |
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 |
Article in Journal/Newspaper |
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 |
publishDate |
2021 |
url |
https://portal.findresearcher.sdu.dk/da/publications/0f66bdb3-2db1-4c52-be62-8003afea9479 https://doi.org/10.1093/femsec/fiab139 https://findresearcher.sdu.dk/ws/files/194917241/fiab139.pdf |
genre |
Arctic Arctic Kongsfjord* Kongsfjorden |
genre_facet |
Arctic Arctic Kongsfjord* Kongsfjorden |
op_source |
Jain , A , Balmonte , J P , Singh , R , Bhaskar , P V & Krishnan , K P 2021 , ' Spatially resolved assembly, connectivity and structure of particle-associated and free-living bacterial communities in a high Arctic fjord ' , FEMS Microbiology Ecology , vol. 97 , no. 11 , fiab139 . https://doi.org/10.1093/femsec/fiab139 |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/0f66bdb3-2db1-4c52-be62-8003afea9479 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/femsec/fiab139 |
container_title |
FEMS Microbiology Ecology |
container_volume |
97 |
container_issue |
11 |
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1797575076998021120 |