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Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities
Surface microbial communities are exposed to seasonally changing environmental conditions, resulting in recurring patterns of community composition. However, knowledge on temporal dynamics of open ocean microbial communities remains scarce. Seasonal patterns and associations of taxa and oligotypes f...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7399227/ https://www.ncbi.nlm.nih.gov/pubmed/32849378 http://dx.doi.org/10.3389/fmicb.2020.01749 |
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author | Mena, Catalina Reglero, Patricia Balbín, Rosa Martín, Melissa Santiago, Rocío Sintes, Eva |
author_facet | Mena, Catalina Reglero, Patricia Balbín, Rosa Martín, Melissa Santiago, Rocío Sintes, Eva |
author_sort | Mena, Catalina |
collection | PubMed |
description | Surface microbial communities are exposed to seasonally changing environmental conditions, resulting in recurring patterns of community composition. However, knowledge on temporal dynamics of open ocean microbial communities remains scarce. Seasonal patterns and associations of taxa and oligotypes from surface and chlorophyll maximum layers in the western Mediterranean Sea were studied over a 2-year period. Summer stratification versus winter mixing governed not only the prokaryotic community composition and diversity but also the temporal dynamics and co-occurrence association networks of oligotypes. Flavobacteriales, Rhodobacterales, SAR11, SAR86, and Synechococcales oligotypes exhibited contrasting seasonal dynamics, and consequently, specific microbial assemblages and potential inter-oligotype connections characterized the different seasons. In addition, oligotypes composition and dynamics differed between surface and deep chlorophyll maximum (DCM) prokaryotic communities, indicating depth-related environmental gradients as a major factor affecting association networks between closely related taxa. Taken together, the seasonal and depth specialization of oligotypes suggest temporal dynamics of community composition and metabolism, influencing ecosystem function and global biogeochemical cycles. Moreover, our results indicate highly specific associations between microbes, pointing to keystone ecotypes and fine-tuning of the microbes realized niche. |
format | Online Article Text |
id | pubmed-7399227 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-73992272020-08-25 Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities Mena, Catalina Reglero, Patricia Balbín, Rosa Martín, Melissa Santiago, Rocío Sintes, Eva Front Microbiol Microbiology Surface microbial communities are exposed to seasonally changing environmental conditions, resulting in recurring patterns of community composition. However, knowledge on temporal dynamics of open ocean microbial communities remains scarce. Seasonal patterns and associations of taxa and oligotypes from surface and chlorophyll maximum layers in the western Mediterranean Sea were studied over a 2-year period. Summer stratification versus winter mixing governed not only the prokaryotic community composition and diversity but also the temporal dynamics and co-occurrence association networks of oligotypes. Flavobacteriales, Rhodobacterales, SAR11, SAR86, and Synechococcales oligotypes exhibited contrasting seasonal dynamics, and consequently, specific microbial assemblages and potential inter-oligotype connections characterized the different seasons. In addition, oligotypes composition and dynamics differed between surface and deep chlorophyll maximum (DCM) prokaryotic communities, indicating depth-related environmental gradients as a major factor affecting association networks between closely related taxa. Taken together, the seasonal and depth specialization of oligotypes suggest temporal dynamics of community composition and metabolism, influencing ecosystem function and global biogeochemical cycles. Moreover, our results indicate highly specific associations between microbes, pointing to keystone ecotypes and fine-tuning of the microbes realized niche. Frontiers Media S.A. 2020-07-28 /pmc/articles/PMC7399227/ /pubmed/32849378 http://dx.doi.org/10.3389/fmicb.2020.01749 Text en Copyright © 2020 Mena, Reglero, Balbín, Martín, Santiago and Sintes. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Mena, Catalina Reglero, Patricia Balbín, Rosa Martín, Melissa Santiago, Rocío Sintes, Eva Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities |
title | Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities |
title_full | Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities |
title_fullStr | Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities |
title_full_unstemmed | Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities |
title_short | Seasonal Niche Partitioning of Surface Temperate Open Ocean Prokaryotic Communities |
title_sort | seasonal niche partitioning of surface temperate open ocean prokaryotic communities |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7399227/ https://www.ncbi.nlm.nih.gov/pubmed/32849378 http://dx.doi.org/10.3389/fmicb.2020.01749 |
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