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Thiotaurine is a biomarker of sulfide-based symbiosis in deep-sea bivalves

Thiotaurine is a biomarker of sulfide-based symbiosis in deep-sea bivalves
Thiotaurine is a biomarker of sulfide-based symbiosis in deep-sea bivalves
A simple biochemical approach for demonstrating the presence of symbionts in deep-sea bivalves and for discriminating between thiotrophic and methylotrophic symbioses is described. Correspondence analysis (CA) of the free amino compound composition of nine bivalve species living in hydrothermal vents and cold seeps successfully discriminates symbiotic species from nonsymbiotic ones, and sulfuroxidizing symbionts from methylotrophic symbionts. CA was also used to infer the metabolism of Bathymodiolus azoricus, B. boomerang, and two new species of Mytilid and Vesicomyid from the Barbados. These results were consistent with the evidence obtained by ultrastructural observations of the gills and enzymatic studies, and show that CA of amino acid profiles might be a useful tool to determine the type of endosymbionts present in deep-sea bivalves. Among all the free amino acids, thiotaurine appears as the main discriminating one and is proposed as a biomarker of sulfide-based endosymbiosis in deep-sea bivalves from hydrothermal vents and cold seeps.
0024-3590
1860-1867
Pruski, A.M.
82ea8ad7-5876-4e76-8815-d7c2dc91c1e0
Medioni, A.F.
6c93f287-6f23-4666-82ae-422ba6396f30
Prodon, R.
a7df0571-8cef-4075-b680-cffdd0f5fb8f
Colomines, J.C.
3d5d4016-505b-4f87-9e7c-6f1f457b726d
Pruski, A.M.
82ea8ad7-5876-4e76-8815-d7c2dc91c1e0
Medioni, A.F.
6c93f287-6f23-4666-82ae-422ba6396f30
Prodon, R.
a7df0571-8cef-4075-b680-cffdd0f5fb8f
Colomines, J.C.
3d5d4016-505b-4f87-9e7c-6f1f457b726d

Pruski, A.M., Medioni, A.F., Prodon, R. and Colomines, J.C. (2000) Thiotaurine is a biomarker of sulfide-based symbiosis in deep-sea bivalves. Limnology and Oceanography, 45 (8), 1860-1867.

Record type: Article

Abstract

A simple biochemical approach for demonstrating the presence of symbionts in deep-sea bivalves and for discriminating between thiotrophic and methylotrophic symbioses is described. Correspondence analysis (CA) of the free amino compound composition of nine bivalve species living in hydrothermal vents and cold seeps successfully discriminates symbiotic species from nonsymbiotic ones, and sulfuroxidizing symbionts from methylotrophic symbionts. CA was also used to infer the metabolism of Bathymodiolus azoricus, B. boomerang, and two new species of Mytilid and Vesicomyid from the Barbados. These results were consistent with the evidence obtained by ultrastructural observations of the gills and enzymatic studies, and show that CA of amino acid profiles might be a useful tool to determine the type of endosymbionts present in deep-sea bivalves. Among all the free amino acids, thiotaurine appears as the main discriminating one and is proposed as a biomarker of sulfide-based endosymbiosis in deep-sea bivalves from hydrothermal vents and cold seeps.

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Published date: 2000

Identifiers

Local EPrints ID: 1399
URI: https://eprints.soton.ac.uk/id/eprint/1399
ISSN: 0024-3590
PURE UUID: 45b1fcc6-4f90-41fe-ad04-eee0d3aed485

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Date deposited: 06 May 2004
Last modified: 17 Jul 2017 17:16

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Contributors

Author: A.M. Pruski
Author: A.F. Medioni
Author: R. Prodon
Author: J.C. Colomines

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