Diurnally Fluctuating pCO(2) Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification

doi:10.3389/fphys.2018.01952

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Diurnally Fluctuating pCO(2) Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification
	Jiang, Lei 6; Quo, Ya-Juan ; Zhang, Fang 6; Zhang, Yu-Yang ; McCook, Laurence John 5; Yuan, Xiang-Cheng ; Lei, Xin-Ming ; Zhou, Guo-Wei ; Guo, Ming-Lan ; Cai, Lin
刊名	FRONTIERS IN PHYSIOLOGY
	2019
卷号	9 页码:1952
关键词	ocean acidification diurnal pCO(2) fluctuations coral calcification carbonic anhydrase proton pump trade-off
ISSN号	1664-042X
DOI	10.3389/fphys.2018.01952
英文摘要	Diurnal pCO(2) 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 pCO(2), steady and elevated pCO(2) (stable OA) and diurnally fluctuating pCO(2) 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 upregulation 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 pCO(2) 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.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17918]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
作者单位	1.Chinese Acad Sci, Guangdong Prov Key Lab Appl Marine Biol, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China 2.Hong Kong Univ Sci & Technol, Dept Ocean Sci, Hong Kong, Peoples R China 3.Hong Kong Univ Sci & Technol, Shenzhen Res Inst, Hong Kong, Peoples R China 4.James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld, Australia 5.Univ Chinese Acad Sci, Beijing, Peoples R China 6.Chinese Acad Sci, Hainan Trop Marine Biol Res Stn, Sanya, Peoples R China 7.Chinese Acad Sci, Key Lab Trop Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Lei,Quo, Ya-Juan,Zhang, Fang,et al. Diurnally Fluctuating pCO(2) Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification[J]. FRONTIERS IN PHYSIOLOGY,2019,9:1952.
APA	Jiang, Lei.,Quo, Ya-Juan.,Zhang, Fang.,Zhang, Yu-Yang.,McCook, Laurence John.,...&Huang, Hui.(2019).Diurnally Fluctuating pCO(2) Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification.FRONTIERS IN PHYSIOLOGY,9,1952.
MLA	Jiang, Lei,et al."Diurnally Fluctuating pCO(2) Modifies the Physiological Responses of Coral Recruits Under Ocean Acidification".FRONTIERS IN PHYSIOLOGY 9(2019):1952.