Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification
Diurnal pCO2 fluctuations have the potential to modulate the biological impact of ocean acidification (OA) on reef calcifiers, yet little is known about the physiological and biochemical responses of scleractinian corals to fluctuating carbonate chemistry under OA. Here, we exposed newly settled Poc...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-01-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fphys.2018.01952/full |
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| author | Lei Jiang Lei Jiang Lei Jiang Lei Jiang Ya-Juan Guo Ya-Juan Guo Fang Zhang Fang Zhang Fang Zhang Fang Zhang Yu-Yang Zhang Yu-Yang Zhang Laurence John McCook Laurence John McCook Laurence John McCook Xiang-Cheng Yuan Xiang-Cheng Yuan Xin-Ming Lei Xin-Ming Lei Guo-Wei Zhou Guo-Wei Zhou Guo-Wei Zhou Ming-Lan Guo Ming-Lan Guo Lin Cai Jian-Sheng Lian Jian-Sheng Lian Pei-Yuan Qian Hui Huang Hui Huang Hui Huang |
| author_facet | Lei Jiang Lei Jiang Lei Jiang Lei Jiang Ya-Juan Guo Ya-Juan Guo Fang Zhang Fang Zhang Fang Zhang Fang Zhang Yu-Yang Zhang Yu-Yang Zhang Laurence John McCook Laurence John McCook Laurence John McCook Xiang-Cheng Yuan Xiang-Cheng Yuan Xin-Ming Lei Xin-Ming Lei Guo-Wei Zhou Guo-Wei Zhou Guo-Wei Zhou Ming-Lan Guo Ming-Lan Guo Lin Cai Jian-Sheng Lian Jian-Sheng Lian Pei-Yuan Qian Hui Huang Hui Huang Hui Huang |
| author_sort | Lei Jiang |
| collection | DOAJ |
| description | Diurnal pCO2 fluctuations have the potential to modulate the biological impact of ocean acidification (OA) on reef calcifiers, yet little is known about the physiological and biochemical responses of scleractinian corals to fluctuating carbonate chemistry under OA. Here, we exposed newly settled Pocillopora damicornis for 7 days to ambient pCO2, steady and elevated pCO2 (stable OA) and diurnally fluctuating pCO2 under future OA scenario (fluctuating OA). We measured the photo-physiology, growth (lateral growth, budding and calcification), oxidative stress and activities of carbonic anhydrase (CA), Ca-ATPase and Mg-ATPase. Results showed that while OA enhanced the photochemical performance of in hospite symbionts, it also increased catalase activity and lipid peroxidation. Furthermore, both OA treatments altered the activities of host and symbiont CA, suggesting functional changes in the uptake of dissolved inorganic carbon (DIC) for photosynthesis and calcification. Most importantly, only the fluctuating OA treatment resulted in a slight drop in calcification with concurrent up-regulation of Ca-ATPase and Mg-ATPase, implying increased energy expenditure on calcification. Consequently, asexual budding rates decreased by 50% under fluctuating OA. These results suggest that diel pCO2 oscillations could modify the physiological responses and potentially alter the energy budget of coral recruits under future OA, and that fluctuating OA is more energetically expensive for the maintenance of coral recruits than stable OA. |
| first_indexed | 2024-12-13T04:28:48Z |
| format | Article |
| id | doaj.art-5ca57e1d55d94db48068408acf3375ef |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-12-13T04:28:48Z |
| publishDate | 2019-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-5ca57e1d55d94db48068408acf3375ef2022-12-21T23:59:37ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2019-01-01910.3389/fphys.2018.01952428807Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean AcidificationLei Jiang0Lei Jiang1Lei Jiang2Lei Jiang3Ya-Juan Guo4Ya-Juan Guo5Fang Zhang6Fang Zhang7Fang Zhang8Fang Zhang9Yu-Yang Zhang10Yu-Yang Zhang11Laurence John McCook12Laurence John McCook13Laurence John McCook14Xiang-Cheng Yuan15Xiang-Cheng Yuan16Xin-Ming Lei17Xin-Ming Lei18Guo-Wei Zhou19Guo-Wei Zhou20Guo-Wei Zhou21Ming-Lan Guo22Ming-Lan Guo23Lin Cai24Jian-Sheng Lian25Jian-Sheng Lian26Pei-Yuan Qian27Hui Huang28Hui Huang29Hui Huang30Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaHainan Tropical Marine Biology Research Station, Chinese Academy of Sciences, Sanya, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaHainan Tropical Marine Biology Research Station, Chinese Academy of Sciences, Sanya, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, AustraliaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaHainan Tropical Marine Biology Research Station, Chinese Academy of Sciences, Sanya, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaShenzhen Research Institute and Department of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaShenzhen Research Institute and Department of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, ChinaKey Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, ChinaHainan Tropical Marine Biology Research Station, Chinese Academy of Sciences, Sanya, ChinaDiurnal pCO2 fluctuations have the potential to modulate the biological impact of ocean acidification (OA) on reef calcifiers, yet little is known about the physiological and biochemical responses of scleractinian corals to fluctuating carbonate chemistry under OA. Here, we exposed newly settled Pocillopora damicornis for 7 days to ambient pCO2, steady and elevated pCO2 (stable OA) and diurnally fluctuating pCO2 under future OA scenario (fluctuating OA). We measured the photo-physiology, growth (lateral growth, budding and calcification), oxidative stress and activities of carbonic anhydrase (CA), Ca-ATPase and Mg-ATPase. Results showed that while OA enhanced the photochemical performance of in hospite symbionts, it also increased catalase activity and lipid peroxidation. Furthermore, both OA treatments altered the activities of host and symbiont CA, suggesting functional changes in the uptake of dissolved inorganic carbon (DIC) for photosynthesis and calcification. Most importantly, only the fluctuating OA treatment resulted in a slight drop in calcification with concurrent up-regulation of Ca-ATPase and Mg-ATPase, implying increased energy expenditure on calcification. Consequently, asexual budding rates decreased by 50% under fluctuating OA. These results suggest that diel pCO2 oscillations could modify the physiological responses and potentially alter the energy budget of coral recruits under future OA, and that fluctuating OA is more energetically expensive for the maintenance of coral recruits than stable OA.https://www.frontiersin.org/article/10.3389/fphys.2018.01952/fullocean acidificationdiurnal pCO2 fluctuationscoral calcificationcarbonic anhydraseproton pumptrade-off |
| spellingShingle | Lei Jiang Lei Jiang Lei Jiang Lei Jiang Ya-Juan Guo Ya-Juan Guo Fang Zhang Fang Zhang Fang Zhang Fang Zhang Yu-Yang Zhang Yu-Yang Zhang Laurence John McCook Laurence John McCook Laurence John McCook Xiang-Cheng Yuan Xiang-Cheng Yuan Xin-Ming Lei Xin-Ming Lei Guo-Wei Zhou Guo-Wei Zhou Guo-Wei Zhou Ming-Lan Guo Ming-Lan Guo Lin Cai Jian-Sheng Lian Jian-Sheng Lian Pei-Yuan Qian Hui Huang Hui Huang Hui Huang Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification Frontiers in Physiology ocean acidification diurnal pCO2 fluctuations coral calcification carbonic anhydrase proton pump trade-off |
| title | Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification |
| title_full | Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification |
| title_fullStr | Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification |
| title_full_unstemmed | Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification |
| title_short | Diurnally Fluctuating pCO2 Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification |
| title_sort | diurnally fluctuating pco2 modifies the physiological responses of coral recruits under ocean acidification |
| topic | ocean acidification diurnal pCO2 fluctuations coral calcification carbonic anhydrase proton pump trade-off |
| url | https://www.frontiersin.org/article/10.3389/fphys.2018.01952/full |
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