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Journal Articles Science of the Total Environment Year : 2024

Hyper-accumulation of vanadium in animals: Two sponges compete with urochordates

Hyperaccumulation du vanadium chez les animaux: 2 éponges entrent en compétition avec les urochordés.

Andrea Campos
Mauro Rovezzi
Ludovic Delage
André Le Bivic
Julien Issartel
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Abstract

Vanadium (V) concentrations in organisms are usually very low. To date, among animals, only some urochordate and annelid species contain very high levels of V in their tissues. A new case of hyper-accumulation of V in a distinct animal phylum (Porifera), namely, the two homoscleromorph sponge species Oscarella lobularis and O. tuberculata is reported. The measured concentrations (up to 30 g/kg dry weight) exceed those reported previously and are not found in all sponge classes. In both Oscarella species, V is mainly accumulated in the surface tissues, and in mesohylar cells, as V(IV), before being partly reduced to V(III) in the deeper tissues. Candidate genes from Bacteria and sponges have been identified as possibly being involved in the metabolism of V. This finding provides clues for the development of bioremediation strategies in marine ecosystems and/or bioinspired processes to recycle this critical metal.
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hal-04390579 , version 1 (18-01-2024)

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Kassandra de Pao Mendonca, Perrine Chaurand, Andrea Campos, Mauro Rovezzi, Ludovic Delage, et al.. Hyper-accumulation of vanadium in animals: Two sponges compete with urochordates. Science of the Total Environment, 2024, 914, pp.169410. ⟨10.1016/j.scitotenv.2023.169410⟩. ⟨hal-04390579⟩
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