Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria
Reducing conditions with elevated sulphide and methane concentrations in ecosystems such as hydrothermal vents, cold seeps or organic falls, are suitable for chemosynthetic primary production. Understanding processes driving bacterial diversity, colonization and dispersal is of prime importance for...
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ftdoajarticles:oai:doaj.org/article:d9c1c860c2544ae8992e4522b9dc06a5 2023-05-15T17:38:34+02:00 Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria Kamil M Szafranski Philippe eDeschamps Marina R. Cunha Sylvie Marylène Gaudron Sébastien eDuperron 2015-02-01T00:00:00Z https://doi.org/10.3389/fmicb.2015.00162 https://doaj.org/article/d9c1c860c2544ae8992e4522b9dc06a5 EN eng Frontiers Media S.A. http://journal.frontiersin.org/Journal/10.3389/fmicb.2015.00162/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2015.00162 https://doaj.org/article/d9c1c860c2544ae8992e4522b9dc06a5 Frontiers in Microbiology, Vol 6 (2015) Hydrothermal Vents symbionts colonization deep sea cold seeps Wood falls Microbiology QR1-502 article 2015 ftdoajarticles https://doi.org/10.3389/fmicb.2015.00162 2022-12-31T05:22:57Z Reducing conditions with elevated sulphide and methane concentrations in ecosystems such as hydrothermal vents, cold seeps or organic falls, are suitable for chemosynthetic primary production. Understanding processes driving bacterial diversity, colonization and dispersal is of prime importance for deep-sea microbial ecology. This study provides a detailed characterization of bacterial assemblages colonizing plant-derived substrates using a standardised approach over a geographic area spanning the North-East Atlantic and Mediterranean. Wood and alfalfa substrates in colonization devices were deployed for different periods at 8 deep-sea chemosynthesis-based sites in 4 distinct geographic areas. Pyrosequencing of a fragment of the 16S rRNA-encoding gene was used to describe bacterial communities. Colonization occurred within the first 14 days. The diversity was higher in samples deployed for more than 289 days. After 289 days, no relation was observed between community richness and deployment duration, suggesting that diversity may have reached saturation sometime in between. Communities in long-term deployments were different, and their composition was mainly influenced by the geographical location where devices were deployed. Numerous sequences related to horizontally-transmitted chemosynthetic symbionts of metazoans were identified. Their potential status as free-living forms of these symbionts was evaluated based on sequence similarity and monophyly with demonstrated symbionts. Results suggest that some free-living forms of metazoan symbionts or their close relatives, such as the epsilonproteobacterium associated with the shrimp Rimicaris exoculata, are efficient colonizers of plant substrates at vents and seeps. Article in Journal/Newspaper North East Atlantic Northeast Atlantic Directory of Open Access Journals: DOAJ Articles Frontiers in Microbiology 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Hydrothermal Vents symbionts colonization deep sea cold seeps Wood falls Microbiology QR1-502 |
spellingShingle |
Hydrothermal Vents symbionts colonization deep sea cold seeps Wood falls Microbiology QR1-502 Kamil M Szafranski Philippe eDeschamps Marina R. Cunha Sylvie Marylène Gaudron Sébastien eDuperron Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
topic_facet |
Hydrothermal Vents symbionts colonization deep sea cold seeps Wood falls Microbiology QR1-502 |
description |
Reducing conditions with elevated sulphide and methane concentrations in ecosystems such as hydrothermal vents, cold seeps or organic falls, are suitable for chemosynthetic primary production. Understanding processes driving bacterial diversity, colonization and dispersal is of prime importance for deep-sea microbial ecology. This study provides a detailed characterization of bacterial assemblages colonizing plant-derived substrates using a standardised approach over a geographic area spanning the North-East Atlantic and Mediterranean. Wood and alfalfa substrates in colonization devices were deployed for different periods at 8 deep-sea chemosynthesis-based sites in 4 distinct geographic areas. Pyrosequencing of a fragment of the 16S rRNA-encoding gene was used to describe bacterial communities. Colonization occurred within the first 14 days. The diversity was higher in samples deployed for more than 289 days. After 289 days, no relation was observed between community richness and deployment duration, suggesting that diversity may have reached saturation sometime in between. Communities in long-term deployments were different, and their composition was mainly influenced by the geographical location where devices were deployed. Numerous sequences related to horizontally-transmitted chemosynthetic symbionts of metazoans were identified. Their potential status as free-living forms of these symbionts was evaluated based on sequence similarity and monophyly with demonstrated symbionts. Results suggest that some free-living forms of metazoan symbionts or their close relatives, such as the epsilonproteobacterium associated with the shrimp Rimicaris exoculata, are efficient colonizers of plant substrates at vents and seeps. |
format |
Article in Journal/Newspaper |
author |
Kamil M Szafranski Philippe eDeschamps Marina R. Cunha Sylvie Marylène Gaudron Sébastien eDuperron |
author_facet |
Kamil M Szafranski Philippe eDeschamps Marina R. Cunha Sylvie Marylène Gaudron Sébastien eDuperron |
author_sort |
Kamil M Szafranski |
title |
Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
title_short |
Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
title_full |
Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
title_fullStr |
Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
title_full_unstemmed |
Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
title_sort |
colonization of plant substrates at hydrothermal vents and cold seeps in the northeast atlantic and mediterranean and occurrence of symbiont-related bacteria |
publisher |
Frontiers Media S.A. |
publishDate |
2015 |
url |
https://doi.org/10.3389/fmicb.2015.00162 https://doaj.org/article/d9c1c860c2544ae8992e4522b9dc06a5 |
genre |
North East Atlantic Northeast Atlantic |
genre_facet |
North East Atlantic Northeast Atlantic |
op_source |
Frontiers in Microbiology, Vol 6 (2015) |
op_relation |
http://journal.frontiersin.org/Journal/10.3389/fmicb.2015.00162/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2015.00162 https://doaj.org/article/d9c1c860c2544ae8992e4522b9dc06a5 |
op_doi |
https://doi.org/10.3389/fmicb.2015.00162 |
container_title |
Frontiers in Microbiology |
container_volume |
6 |
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1766139073978695680 |