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Oxidative stress and apoptotic events during thermal stress in the symbiotic sea anemone, Anemonia viridis

Oxidative stress and apoptotic events during thermal stress in the symbiotic sea anemone, Anemonia viridis
Oxidative stress and apoptotic events during thermal stress in the symbiotic sea anemone, Anemonia viridis
Symbiosis between cnidarian and photosynthetic protists is widely distributed over temperate and tropical seas. These symbioses can periodically breakdown, a phenomenon known as cnidarian bleaching. This event can be irreversible for some associations subjected to acute and/or prolonged environmental disturbances, and leads to the death of the animal host. During bleaching, oxidative stress has been described previously as acting at molecular level and apoptosis is suggested to be one of the mechanisms involved. We focused our study on the role of apoptosis in bleaching via oxidative stress in the association between the sea anemone Anemonia viridis and the dinoflagellates Symbiodinium species. Characterization of caspase-like enzymes were conducted at the biochemical and molecular level to confirm the presence of a caspase-dependent apoptotic phenomenon in the cnidarian host. We provide evidence of oxidative stress followed by induction of caspase-like activity in animal host cells after an elevated temperature stress, suggesting the concomitant action of these components in bleaching.
1742-464X
4186-4198
Richier, Sophie
0fc0b375-6918-4c06-9d6f-229f6c4046ca
Sabourault, Cécile
aa168761-8462-4621-975f-fc803280e966
Courtiade, Juliette
53e9c27d-846d-4448-830f-2c30250fd5e1
Zucchini, Nathalie
fbcd8d2c-516e-44a4-8233-fc4153c0203e
Allemand, Denis
a9a9145a-9129-4827-83ae-f204d180d945
Furla, Paola
d3e7b181-371a-4a7a-8749-594e704d10d7
Richier, Sophie
0fc0b375-6918-4c06-9d6f-229f6c4046ca
Sabourault, Cécile
aa168761-8462-4621-975f-fc803280e966
Courtiade, Juliette
53e9c27d-846d-4448-830f-2c30250fd5e1
Zucchini, Nathalie
fbcd8d2c-516e-44a4-8233-fc4153c0203e
Allemand, Denis
a9a9145a-9129-4827-83ae-f204d180d945
Furla, Paola
d3e7b181-371a-4a7a-8749-594e704d10d7

Richier, Sophie, Sabourault, Cécile, Courtiade, Juliette, Zucchini, Nathalie, Allemand, Denis and Furla, Paola (2006) Oxidative stress and apoptotic events during thermal stress in the symbiotic sea anemone, Anemonia viridis. Febs Journal, 273 (18), 4186-4198. (doi:10.1111/j.1742-4658.2006.05414.x). (PMID:16907933)

Record type: Article

Abstract

Symbiosis between cnidarian and photosynthetic protists is widely distributed over temperate and tropical seas. These symbioses can periodically breakdown, a phenomenon known as cnidarian bleaching. This event can be irreversible for some associations subjected to acute and/or prolonged environmental disturbances, and leads to the death of the animal host. During bleaching, oxidative stress has been described previously as acting at molecular level and apoptosis is suggested to be one of the mechanisms involved. We focused our study on the role of apoptosis in bleaching via oxidative stress in the association between the sea anemone Anemonia viridis and the dinoflagellates Symbiodinium species. Characterization of caspase-like enzymes were conducted at the biochemical and molecular level to confirm the presence of a caspase-dependent apoptotic phenomenon in the cnidarian host. We provide evidence of oxidative stress followed by induction of caspase-like activity in animal host cells after an elevated temperature stress, suggesting the concomitant action of these components in bleaching.

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Published date: September 2006
Organisations: Environmental

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Local EPrints ID: 341905
URI: http://eprints.soton.ac.uk/id/eprint/341905
ISSN: 1742-464X
PURE UUID: 732a3cbf-628f-4c5f-a851-2f05b7d81d82

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Date deposited: 15 Aug 2012 13:07
Last modified: 14 Mar 2024 11:45

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Contributors

Author: Sophie Richier
Author: Cécile Sabourault
Author: Juliette Courtiade
Author: Nathalie Zucchini
Author: Denis Allemand
Author: Paola Furla

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