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 sulfide 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 d...
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fttriple:oai:gotriple.eu:10670/1.sdoimc 2023-05-15T17:38:33+02:00 Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria Szafranski, Kamil M. Deschamps, Philippe Cunha, Marina R. Gaudron, Sylvie M. Duperron, Sebastien https://doi.org/10.3389/fmicb.2015.00162 https://archimer.ifremer.fr/doc/00382/49383/49804.pdf https://archimer.ifremer.fr/doc/00382/49383/49805.xlsx en eng Frontiers Media Sa doi:10.3389/fmicb.2015.00162 10670/1.sdoimc https://archimer.ifremer.fr/doc/00382/49383/49804.pdf https://archimer.ifremer.fr/doc/00382/49383/49805.xlsx lic_creative-commons other Archimer, archive institutionnelle de l'Ifremer Frontiers In Microbiology (1664-302X) (Frontiers Media Sa), 2015-02 , Vol. 6 , N. 162 , P. 1-14 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.3389/fmicb.2015.00162 2023-01-22T16:46:31Z Reducing conditions with elevated sulfide 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 standardized 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 four 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 with demonstrated symbionts. Results suggest that some free-living forms of metazoan symbionts or their close relatives, such as Epsilonproteobacteria associated with the shrimp Rimicans exoculata, are efficient colonizers of plant substrates at vents and seeps. Text North East Atlantic Northeast Atlantic Unknown Frontiers in Microbiology 6 |
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envir geo Szafranski, Kamil M. Deschamps, Philippe Cunha, Marina R. Gaudron, Sylvie M. Duperron, Sebastien Colonization of plant substrates at hydrothermal vents and cold seeps in the northeast Atlantic and Mediterranean and occurrence of symbiont-related bacteria |
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description |
Reducing conditions with elevated sulfide 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 standardized 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 four 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 with demonstrated symbionts. Results suggest that some free-living forms of metazoan symbionts or their close relatives, such as Epsilonproteobacteria associated with the shrimp Rimicans exoculata, are efficient colonizers of plant substrates at vents and seeps. |
format |
Text |
author |
Szafranski, Kamil M. Deschamps, Philippe Cunha, Marina R. Gaudron, Sylvie M. Duperron, Sebastien |
author_facet |
Szafranski, Kamil M. Deschamps, Philippe Cunha, Marina R. Gaudron, Sylvie M. Duperron, Sebastien |
author_sort |
Szafranski, Kamil M. |
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 Sa |
url |
https://doi.org/10.3389/fmicb.2015.00162 https://archimer.ifremer.fr/doc/00382/49383/49804.pdf https://archimer.ifremer.fr/doc/00382/49383/49805.xlsx |
genre |
North East Atlantic Northeast Atlantic |
genre_facet |
North East Atlantic Northeast Atlantic |
op_source |
Archimer, archive institutionnelle de l'Ifremer Frontiers In Microbiology (1664-302X) (Frontiers Media Sa), 2015-02 , Vol. 6 , N. 162 , P. 1-14 |
op_relation |
doi:10.3389/fmicb.2015.00162 10670/1.sdoimc https://archimer.ifremer.fr/doc/00382/49383/49804.pdf https://archimer.ifremer.fr/doc/00382/49383/49805.xlsx |
op_rights |
lic_creative-commons other |
op_doi |
https://doi.org/10.3389/fmicb.2015.00162 |
container_title |
Frontiers in Microbiology |
container_volume |
6 |
_version_ |
1766139028931870720 |