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  Dual symbiosis of the vent shrimp Rimicaris exoculata with filamentous gamma- and epsilonproteobacteria at four Mid-Atlantic Ridge hydrothermal vent fields

Petersen, J. M., Ramette, A., Lott, C., Cambon-Bonavita, M. A., Zbinden, M., & Dubilier, N. (2010). Dual symbiosis of the vent shrimp Rimicaris exoculata with filamentous gamma- and epsilonproteobacteria at four Mid-Atlantic Ridge hydrothermal vent fields. Environmental Microbiology, 12(8), 2204-2218.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0001-CADC-4 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0007-75B7-7
資料種別: 学術論文

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Petersen10.pdf (出版社版), 2MB
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https://hdl.handle.net/21.11116/0000-0007-75B8-6
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Petersen10.pdf
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 作成者:
Petersen, J. M.1, 著者           
Ramette, A.2, 著者           
Lott, C.1, 著者           
Cambon-Bonavita, M. A., 著者
Zbinden, M., 著者
Dubilier, N.1, 著者           
所属:
1Department of Symbiosis, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481699              
2HGF MPG Joint Research Group for Deep Sea Ecology & Technology, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481702              

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 要旨: The shrimp Rimicaris exoculata from hydrothermal vents on the Mid-Atlantic Ridge (MAR) harbours bacterial epibionts on specialized appendages and the inner surfaces of its gill chamber. Using comparative 16S rRNA sequence analysis and fluorescence in situ hybridization (FISH), we examined the R. exoculata epibiosis from four vents sites along the known distribution range of the shrimp on the MAR. Our results show that R. exoculata lives in symbiosis with two types of filamentous epibionts. One belongs to the Epsilonproteobacteria, and was previously identified as the dominant symbiont of R. exoculata. The second is a novel gammaproteobacterial symbiont that belongs to a clade consisting exclusively of sequences from epibiotic bacteria of hydrothermal vent animals, with the filamentous sulfur oxidizer Leucothrix mucor as the closest free-living relative. Both the epsilon- and the gammaproteobacterial symbionts dominated the R. exoculata epibiosis at all four MAR vent sites despite striking differences between vent fluid chemistry and distances between sites of up to 8500 km, indicating that the symbiosis is highly stable and specific. Phylogenetic analyses of two mitochondrial host genes showed little to no differences between hosts from the four vent sites. In contrast, there was significant spatial structuring of both the gamma- and the epsilonproteobacterial symbiont populations based on their 16S rRNA gene sequences that was correlated with geographic distance along the MAR. We hypothesize that biogeography and host-symbiont selectivity play a role in structuring the epibiosis of R. exoculata.

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言語: eng - English
 日付: 2010-08-04
 出版の状態: 出版
 ページ: 15
 出版情報: -
 目次: -
 査読: 査読あり
 識別子(DOI, ISBNなど): eDoc: 533474
ISI: 000280652500014
 学位: -

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出版物 1

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出版物名: Environmental Microbiology
  その他 : Environmental Microbiology and Environmental Microbiology Reports
種別: 学術雑誌
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出版社, 出版地: Oxford, England : Blackwell Science
ページ: - 巻号: 12 (8) 通巻号: - 開始・終了ページ: 2204 - 2218 識別子(ISBN, ISSN, DOIなど): ISSN: 1462-2912
CoNE: https://pure.mpg.de/cone/journals/resource/959328105031