Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific
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Redalyc · Ciencias Marinas
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 bleachi...
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| Pubblicato in: | Ciencias Marinas |
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Autónoma de Baja California
2013
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| _version_ | 1878325300011466752 |
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| author | Alma Paola Rodríguez-Troncoso |
| author_facet | Alma Paola Rodríguez-Troncoso |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | 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 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/2168 10.7773/cm.v39i1.2168 |
| description | 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 off the Pacific coast of central Mexico, we evaluated 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.
La presión ejercida por condiciones de incrementos anómalos en la temperatura superficial del mar sobre las comunidades arrecifales cada vez se presenta con mayor intensidad y frecuencia. Dichos eventos han tenido efectos negativos sobre estos ecosistemas, y es por esto que hay una urgente necesidad de comprender los mecanismos celulares que le permiten al organismo sobrevivir durante el periodo de estrés antes de que el blanqueamiento sea evidente. Para tener un primer conocimiento del efecto del incremento en la temperatura sobre los corales del Pacifico central mexicano, se evaluó la actividad de la CuZnSOD en fragmentos de Pocillopora verrucosa sometidos a condiciones de estrés experimental (31 ºC) y a condiciones sin estrés. Los resultados mostraron un incremento en la actividad de la CuZnSOD desde las 18 h de exposición al estrés (31 ºC), mientras que no se observó un incremento en la actividad a los 28 ºC. Dichos resultados permitieron evaluar los niveles máximos de actividad de la CuZnSOD que puede mantener el hospedero previo a que expulse al endosimbionte (género Symbiodinium) como acción de defensa para evitar daños celulares asociados al estrés oxidativo. Con los resultados encontrados se puede establecer que la CuZnSOD puede ser utilizada como un marcador celular para evaluar los niveles de estrés, previo al blanqueamiento, en las comunidades coralinas de la región. |
| format | Artículo científico |
| id | redalyc_48025656004 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2013 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific Daño oxidativo asociado al estrés térmico en Pocillopora verrucosa en el Pacífico mexicano Rodríguez-Troncoso, Alma Paola Carpizo-Ituarte, Eugenio Cupul-Magaña, Amilcar 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 off the Pacific coast of central Mexico, we evaluated 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. La presión ejercida por condiciones de incrementos anómalos en la temperatura superficial del mar sobre las comunidades arrecifales cada vez se presenta con mayor intensidad y frecuencia. Dichos eventos han tenido efectos negativos sobre estos ecosistemas, y es por esto que hay una urgente necesidad de comprender los mecanismos celulares que le permiten al organismo sobrevivir durante el periodo de estrés antes de que el blanqueamiento sea evidente. Para tener un primer conocimiento del efecto del incremento en la temperatura sobre los corales del Pacifico central mexicano, se evaluó la actividad de la CuZnSOD en fragmentos de Pocillopora verrucosa sometidos a condiciones de estrés experimental (31 ºC) y a condiciones sin estrés. Los resultados mostraron un incremento en la actividad de la CuZnSOD desde las 18 h de exposición al estrés (31 ºC), mientras que no se observó un incremento en la actividad a los 28 ºC. Dichos resultados permitieron evaluar los niveles máximos de actividad de la CuZnSOD que puede mantener el hospedero previo a que expulse al endosimbionte (género Symbiodinium) como acción de defensa para evitar daños celulares asociados al estrés oxidativo. Con los resultados encontrados se puede establecer que la CuZnSOD puede ser utilizada como un marcador celular para evaluar los niveles de estrés, previo al blanqueamiento, en las comunidades coralinas de la región. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2013-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed research note Nota de investigación arbitrada application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2168 10.7773/cm.v39i1.2168 Ciencias Marinas; Vol. 39 No. 1 (2013); 113-118 Ciencias Marinas; Vol. 39 Núm. 1 (2013); 113-118 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2168/1430 ['Redalyc'] redalyc_48025656004 Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific ['Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific', 'Alma Paola Rodríguez-Troncoso', 'Ciencias de la Tierra', 'host', 'host', 'Biomarker', 'Biomarker', 'coral community', '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'] ['Alma Paola Rodríguez-Troncoso'] ['Alma Paola Rodríguez-Troncoso'] ['Artículo científico'] ['2013'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'host', 'host', 'Biomarker', 'Biomarker', 'coral community'] ['https://www.redalyc.org/articulo.oa?id=48025656004'] ['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'] |
| spellingShingle | Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific Alma Paola Rodríguez-Troncoso Ciencias de la Tierra host host Biomarker Biomarker coral community 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 |
| title | Oxidative damage associated with thermal stress in Pocillopora verrucosa from the Mexican Pacific |
| title_alt | Daño oxidativo asociado al estrés térmico en Pocillopora verrucosa en el Pacífico mexicano |
| topic | Ciencias de la Tierra host host Biomarker Biomarker coral community |
| url | https://www.redalyc.org/articulo.oa?id=48025656004 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2168 |