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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Autónoma de Baja California
2013
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| Soggetti: | |
| Accesso online: | https://www.redalyc.org/articulo.oa?id=48025656004 |
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Sommario:
- Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific Alma Paola Rodríguez-Troncoso Eugenio Carpizo-Ituarte Amilcar Cupul-Magaña Ciencias de la Tierra host host Biomarker Biomarker coral community Coral communities are under increasing pressure from anomalous increases in sea surface temperature. These events have had negative effects on reef ecosystems and it is important to get a better understanding of the cellular mechanisms that allow organisms to survive the stress period before bleaching is evident. To gain insight into the effect of increased temperature on coral communities of f the Pacific coast of central Mexico, we evaluate d CuZnSOD (superoxide dismutase) activity in branches of Pocillopora verrucosa by simulating stress conditions (31 ºC) and non-stress conditions. There was an increase in SOD activity after 18 h of exposing the corals to 31 ºC, while no increase in activity was observed at 28 ºC. These results were used to quantify the maximum levels of CuZnSOD activity before Symbiodinium were expelled to prevent cell damage due to oxidative stress. We determined that CuZnSOD can be used as a molecular marker to quantify stress levels, prior to bleaching, in coral communities of the region. 2013 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48025656004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.39