| Comparative analysis between protist communities from the deep-sea pelagic ecosystem and specific deep hydrothermal habitats. | |
| | |
MedLine Citation:
|
PMID: 20561018 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
Protist communities associated with deep seawater and bivalves from six hydrothermal sites in the Pacific Ocean were characterized by microscopy and molecular rRNA gene surveys (18S rRNA) and compared with planktonic communities from Pacific deep-pelagic seawater (from 500 to 3000 m in depth). Genetic libraries from larger size fractions (>3 µm) of deep-pelagic water were mainly dominated by Dinophyceae, whereas small size fractions (<3 µm) mainly revealed radiolarians and Syndiniales. In contrast, more specific opportunistic detritivores and grazers, mostly belonging to Stramenopiles and Cercozoa, were detected from water surrounding vent chimneys. Protist communities were different in the pallial cavity of the giant hydrothermal bivalves Bathymodiolus thermophilus and Calyptogena magnifica, dominated by Ciliophora (primarily belonging to Phyllopharyngea, Oligohymenophorea and Oligotrichea) and Cercozoa. Interestingly, protist communities retrieved from the pallial cavity liquid of hydrothermal bivalves were remarkably homogeneous along the Southern East Pacific Rise, in contrast to bivalves collected on the Mid-Atlantic Ridge hydrothermal vents and cold seeps from the Gulf of Mexico. Hence, complex protist communities seem to occur inside hydrothermal bivalves, and these metazoa may constitute a stable micro-niche for micro-eukaryotes, including grazers, detritivores, symbionts and potential parasites. From these communities, new lineages within the ciliates may emerge. |
| | |
Authors:
|
Anne-Laure Sauvadet; Angélique Gobet; Laure Guillou |
Related Documents
:
|
1512888 - Ectoparasites of the blackbuck antelope (antilope cervicapra). 17268468 - Evolution of species interactions in a biofilm community. 18397248 - Does niche overlap control relative abundance in french lacustrine fish communities? a ... 19663988 - Community assembly through evolutionary diversification and dispersal in middle america... 15369118 - Obstacle avoidance for kinematically redundant manipulators using a dual neural network. 19113538 - Dark-matter particles without weak-scale masses or weak interactions. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Environmental microbiology Volume: 12 ISSN: 1462-2920 ISO Abbreviation: Environ. Microbiol. Publication Date: 2010 Nov |
Date Detail:
|
Created Date: 2010-11-05 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 100883692 Medline TA: Environ Microbiol Country: England |
Other Details:
|
Languages: eng Pagination: 2946-64 Citation Subset: IM |
Copyright Information:
|
© 2010 Society for Applied Microbiology and Blackwell Publishing Ltd. |
Affiliation:
|
CNRS, UMR 7144, Groupe Plancton Océanique, Station Biologique de Roscoff, BP 74, 29682 Roscoff, France. sauvadet@sb-roscoff.fr |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Leucine-to-carbon empirical conversion factor experiments: does bacterial community structure have a...
Next Document: Bioturbation and the role of microniches for sulfate reduction in coastal marine sediments.