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Full-Text Articles in Life Sciences
Development Of Gene Expression Markers Of Acute Heat-Light Stress In Reef-Building Corals Of The Genus Porites, Carly D. Kenkel, Galina Aglyamova, Ada Alamaru, Ranjeet Bhagooli, Roxana Capper, Ross Cunning, Amanda Devillers, Joshua A. Haslun, Laetitia Hédouin, Shashank Keshavmurthy, Kristin Kuehl, Huda Mahmoud, Elizabeth S. Mcginty, Phanor H. Montoya-Maya, Caroline V. Palmer, Raffaella Pantile, Juan A. Sánchez, Tom Schils, Rachel N. Silverstein, Logan B. Squiers, Pei-Ciao Tang, Tamar L. Goulet, Mikhail V. Matz
Development Of Gene Expression Markers Of Acute Heat-Light Stress In Reef-Building Corals Of The Genus Porites, Carly D. Kenkel, Galina Aglyamova, Ada Alamaru, Ranjeet Bhagooli, Roxana Capper, Ross Cunning, Amanda Devillers, Joshua A. Haslun, Laetitia Hédouin, Shashank Keshavmurthy, Kristin Kuehl, Huda Mahmoud, Elizabeth S. Mcginty, Phanor H. Montoya-Maya, Caroline V. Palmer, Raffaella Pantile, Juan A. Sánchez, Tom Schils, Rachel N. Silverstein, Logan B. Squiers, Pei-Ciao Tang, Tamar L. Goulet, Mikhail V. Matz
Department of Biological Sciences
Coral reefs are declining worldwide due to increased incidence of climate-induced coral bleaching, which will have widespread biodiversity and economic impacts. A simple method to measure the sub-bleaching level of heat-light stress experienced by corals would greatly inform reef management practices by making it possible to assess the distribution of bleaching risks among individual reef sites. Gene expression analysis based on quantitative PCR (qPCR) can be used as a diagnostic tool to determine coral condition in situ. We evaluated the expression of 13 candidate genes during heat-light stress in a common Caribbean coral Porites astreoides, and observed strong …
Trace Metal Limitation And Its Role In Oxidative Stress Of Coral Algal Symbionts; Implications For Thermally Induced Coral Bleaching Events., Katrina Lynn Iglic
Trace Metal Limitation And Its Role In Oxidative Stress Of Coral Algal Symbionts; Implications For Thermally Induced Coral Bleaching Events., Katrina Lynn Iglic
Electronic Thesis and Dissertation Repository
Coral bleaching, the process in which corals expel their photosynthetic symbionts (Genus Symbiodinium), is caused by high temperature and irradiance stress. The synergistic effect of each stressor is the generation of damaging reactive oxygen and nitrogen species (ROS and RNS), which are normally mitigated physiologically by antioxidant enzyme activity. Antioxidant enzymes require iron, copper, manganese and zinc in their structure and the limited nature of these trace metals in reef environments may enhance ROS production under elevated temperature and irradiance. The hypothesis tested within this thesis was that a limited availability of the trace metals Fe, Mn, Cu and …