Frontiers in Marine Science (Jun 2024)
Oxygen supersaturation adds resistance to a cnidarian: Symbiodiniaceae holobiont under moderate warming in experimental settings
- Silvia Arossa,
- Silvia Arossa,
- Silvia Arossa,
- Shannon G. Klein,
- Shannon G. Klein,
- Shannon G. Klein,
- Elisa Garuglieri,
- Alexandra Steckbauer,
- Alexandra Steckbauer,
- Alexandra Steckbauer,
- Anieka J. Parry,
- Anieka J. Parry,
- Anieka J. Parry,
- Jacqueline V. Alva Garcia,
- Jacqueline V. Alva Garcia,
- Jacqueline V. Alva Garcia,
- Taiba Alamoudi,
- Taiba Alamoudi,
- Taiba Alamoudi,
- Xinyuan Yang,
- Shiou-Han Hung,
- Shiou-Han Hung,
- Octavio R. Salazar,
- Octavio R. Salazar,
- Ramona Marasco,
- Marco Fusi,
- Marco Fusi,
- Manuel Aranda,
- Manuel Aranda,
- Daniele Daffonchio,
- Carlos M. Duarte,
- Carlos M. Duarte,
- Carlos M. Duarte
Affiliations
- Silvia Arossa
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Silvia Arossa
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Silvia Arossa
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Shannon G. Klein
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Shannon G. Klein
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Shannon G. Klein
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Elisa Garuglieri
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Alexandra Steckbauer
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Alexandra Steckbauer
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Alexandra Steckbauer
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Anieka J. Parry
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Anieka J. Parry
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Anieka J. Parry
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Jacqueline V. Alva Garcia
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Jacqueline V. Alva Garcia
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Jacqueline V. Alva Garcia
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Taiba Alamoudi
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Taiba Alamoudi
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Taiba Alamoudi
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Xinyuan Yang
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Shiou-Han Hung
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Shiou-Han Hung
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Octavio R. Salazar
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Octavio R. Salazar
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Ramona Marasco
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Marco Fusi
- Joint Nature Conservation Committee, Peterborough, United Kingdom
- Marco Fusi
- Centre for Conservation and Restoration Science, Edinburgh Napier University, Edinburgh, United Kingdom
- Manuel Aranda
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Manuel Aranda
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Daniele Daffonchio
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Carlos M. Duarte
- Marine Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Carlos M. Duarte
- Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Carlos M. Duarte
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- DOI
- https://doi.org/10.3389/fmars.2024.1305674
- Journal volume & issue
-
Vol. 11
Abstract
Ocean warming reduces O2 solubility and increases organismal O2 demand, endangering marine life. Coastal ecosystems, however, experience O2 supersaturation during peak daytime temperatures due to metabolic cycles. Recent discoveries show that this environmental supersaturation can reduce the vulnerability of tropical species to warming by satisfying their oxygen requirements. To test whether this also occurs within the cnidarian holobiont, we elevated internal O2 in Cassiopea andromeda at nighttime (i.e. holobiont respiration prevails on Symbiodniaceae O2 production) relying on bell pulsation for ventilation, then experimentally subjected them to thermal stress (+1°C day-1). Though ecologically unrealistic, this approach verified our hypothesis and eliminated confounding factors. Holobionts were exposed to either constant levels of 100% air saturation (100AS) or nighttime supersaturation (NSS; where 100% air saturation transitioned to O2 supersaturation at nighttime). At sublethal temperatures, supersaturation mitigated reductions in holobiont size of ~ 10.37% (-33.418% ± 0.345 under 100AS vs -23.039% ± 0.687 under NSS). Supersaturation alleviated chlorophyll-a loss by 42.73% until 34°C, when counteraction of this process could not be sustained due to excessive thermal stress. Supersaturation also enriched potentially beneficial bacterial taxa of the microbiome and selected a more consistent bacterial community. Although modest, the detected effects show that a O2 surplus increased the resistance of the holobionts to thermal stress.
Keywords
