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A complex journey: transmission of microbial symbionts
The journey of symbionts from the initial contact to their final residence is described, and the molecular mechanisms that mediate symbiont attraction and accumulation, interpartner recognition and selection, as well as Symbiont confrontation with the host immune system are provided.
Handbook of deep-sea hydrothermal vent fauna
Résumé, Zusammenfassung ........................................................................................ 5 Foreword…
Horizontal endosymbiont transmission in hydrothermal vent tubeworms
The data indicate that the bacterial symbionts colonize the developing tube of the settled larvae and enter the host through the skin, a process that continues through the early juvenile stages during which the trophosome is established from mesodermal tissue.
Diversity of Meiofauna from the 9°50′N East Pacific Rise across a Gradient of Hydrothermal Fluid Emissions
- S. Gollner, B. Riemer, P. Martínez Arbizu, N. Le Bris, M. Bright
- Biology, MedicinePloS one
- 10 August 2010
The data suggest that with increasing temperature and toxic hydrogen sulfide concentrations and increasing amplitude of variation of these factors, fewer species are able to cope with these extreme conditions, which results in less diverse communities in more extreme habitats.
Hydrothermal vent meiobenthos associated with mytilid mussel aggregations from the Mid-Atlantic Ridge and the East Pacific Rise
“Candidatus Thiobios zoothamnicoli,” an Ectosymbiotic Bacterium Covering the Giant Marine Ciliate Zoothamnium niveum
- Christian Rinke, S. Schmitz-Esser, +7 authors M. Bright
- Biology, MedicineApplied and Environmental Microbiology
- 1 March 2006
Comparative 16S rRNA gene sequence analysis and fluorescence in situ hybridization showed that the ectosymbiont of Z. niveum belongs to only one pleomorphic phylotype.
Ultrastructural reinvestigation of the trophosome in adults of Riftia pachyptila (Annelida, Siboglinidae)
A mesodermal rather than endodermal origin is hypothesized for the trophosome of adults of Riftia pachyptila and its constitute bacteriocytes, which act as stem cells for a proliferating tissue produced in the center and ultimately degraded at the periphery of each lobule.
Free-Living Tube Worm Endosymbionts Found at Deep-Sea Vents
- T. L. Harmer, R. Rotjan, +4 authors C. Cavanaugh
- Medicine, BiologyApplied and Environmental Microbiology
- 11 April 2008
These findings support environmental transmission as a means of symbiont acquisition for deep-sea tube worms.
Ecology and Biogeography of Free-Living Nematodes Associated with Chemosynthetic Environments in the Deep Sea: A Review
It seems that shallow water relatives, rather than typical deep-sea taxa, have successfully colonized the reduced sediments of seeps at large water depth, supporting rather the importance of local adaptation, than that of long distance distribution.
Symbioses between marine nematodes and sulfur-oxidizing chemoautotrophic bacteria
Ulastructure, incorporation of inorganic carbon and the presence of RuBisCo and key enzymes of sulfide oxidation pathways show the bacteria to be sulfur-oxidizing chemolithoautotrophs, and stable isotope analysis suggests that the worms depend on the bacteria for their nutrition.