Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord
Abstract Quantifying the temporal change of bacterial communities is essential to understanding how both natural and anthropogenic pressures impact the functions of coastal marine ecosystems. Here we use weekly microbial DNA sampling across four years to show that bacterial phyla have distinct seaso...
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ftdoajarticles:oai:doaj.org/article:8010b7e79435478b9b5253aa32f3d566 2023-05-15T17:33:13+02:00 Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord Eric J. Raes Jennifer Tolman Dhwani Desai Jenni-Marie Ratten Jackie Zorz Brent M. Robicheau Diana Haider Julie LaRoche 2022-09-01T00:00:00Z https://doi.org/10.1038/s41598-022-19165-w https://doaj.org/article/8010b7e79435478b9b5253aa32f3d566 EN eng Nature Portfolio https://doi.org/10.1038/s41598-022-19165-w https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-19165-w 2045-2322 https://doaj.org/article/8010b7e79435478b9b5253aa32f3d566 Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1038/s41598-022-19165-w 2022-12-30T19:51:25Z Abstract Quantifying the temporal change of bacterial communities is essential to understanding how both natural and anthropogenic pressures impact the functions of coastal marine ecosystems. Here we use weekly microbial DNA sampling across four years to show that bacterial phyla have distinct seasonal niches, with a richness peak in winter (i.e., an inverse relationship with daylength). Our results suggest that seasonal fluctuations, rather than the kinetic energy or resource hypotheses, dominated the pattern of bacterial diversity. These findings supplement those from global analyses which lack temporal replication and present few data from winter months in polar and temperate regions. Centered log-ratio transformed data provided new insights into the seasonal niche partitioning of conditionally rare phyla, such as Modulibacteria, Verrucomicrobiota, Synergistota, Deinococcota, and Fermentibacterota. These patterns could not be identified using the standard practice of ASV generation followed by rarefaction. Our study provides evidence that five globally relevant ecotypes of chemolithoautotrophic bacteria from the SUP05 lineage comprise a significant functional group with varying seasonal dominance patterns in the Bedford Basin. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Bedford ENVELOPE(-67.150,-67.150,-66.467,-66.467) Scientific Reports 12 1 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q Eric J. Raes Jennifer Tolman Dhwani Desai Jenni-Marie Ratten Jackie Zorz Brent M. Robicheau Diana Haider Julie LaRoche Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord |
topic_facet |
Medicine R Science Q |
description |
Abstract Quantifying the temporal change of bacterial communities is essential to understanding how both natural and anthropogenic pressures impact the functions of coastal marine ecosystems. Here we use weekly microbial DNA sampling across four years to show that bacterial phyla have distinct seasonal niches, with a richness peak in winter (i.e., an inverse relationship with daylength). Our results suggest that seasonal fluctuations, rather than the kinetic energy or resource hypotheses, dominated the pattern of bacterial diversity. These findings supplement those from global analyses which lack temporal replication and present few data from winter months in polar and temperate regions. Centered log-ratio transformed data provided new insights into the seasonal niche partitioning of conditionally rare phyla, such as Modulibacteria, Verrucomicrobiota, Synergistota, Deinococcota, and Fermentibacterota. These patterns could not be identified using the standard practice of ASV generation followed by rarefaction. Our study provides evidence that five globally relevant ecotypes of chemolithoautotrophic bacteria from the SUP05 lineage comprise a significant functional group with varying seasonal dominance patterns in the Bedford Basin. |
format |
Article in Journal/Newspaper |
author |
Eric J. Raes Jennifer Tolman Dhwani Desai Jenni-Marie Ratten Jackie Zorz Brent M. Robicheau Diana Haider Julie LaRoche |
author_facet |
Eric J. Raes Jennifer Tolman Dhwani Desai Jenni-Marie Ratten Jackie Zorz Brent M. Robicheau Diana Haider Julie LaRoche |
author_sort |
Eric J. Raes |
title |
Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord |
title_short |
Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord |
title_full |
Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord |
title_fullStr |
Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord |
title_full_unstemmed |
Seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a North Atlantic fjord |
title_sort |
seasonal bacterial niche structures and chemolithoautotrophic ecotypes in a north atlantic fjord |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41598-022-19165-w https://doaj.org/article/8010b7e79435478b9b5253aa32f3d566 |
long_lat |
ENVELOPE(-67.150,-67.150,-66.467,-66.467) |
geographic |
Bedford |
geographic_facet |
Bedford |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022) |
op_relation |
https://doi.org/10.1038/s41598-022-19165-w https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-19165-w 2045-2322 https://doaj.org/article/8010b7e79435478b9b5253aa32f3d566 |
op_doi |
https://doi.org/10.1038/s41598-022-19165-w |
container_title |
Scientific Reports |
container_volume |
12 |
container_issue |
1 |
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1766131637427372032 |