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Canesi M, Douville É, Bordier L, Dapoigny A, Coulibaly GE, Montagna P, Béraud É, Allemand D, Planes S, Furla P, Gilson E, Roberty S, Zoccola D, Reynaud S. Porites' coral calcifying fluid chemistry regulation under normal- and low-pH seawater conditions in Palau Archipelago: Impacts on growth properties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 911:168552. [PMID: 38007109 DOI: 10.1016/j.scitotenv.2023.168552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 11/07/2023] [Accepted: 11/11/2023] [Indexed: 11/27/2023]
Abstract
Ongoing ocean acidification is known to be a major threat to tropical coral reefs. To date, only few studies have evaluated the impacts of natural long-term exposure to low-pH seawater on the chemical regulation and growth of reef-building corals. This work investigated the different responses of the massive Porites coral living at normal (pHsw ~ 8.03) and naturally low-pH (pHsw ~ 7.85) seawater conditions at Palau over the last decades. Our results show that both Porites colonies maintained similar carbonate properties (pHcf, [CO32-]cf, DICcf, and Ωcf) within their calcifying fluid since 1972. However, the Porites skeleton of the more acidified conditions revealed a significantly lower density (~ 1.21 ± 0.09 g·cm-3) than the skeleton from the open-ocean site (~ 1.41 ± 0.07 g·cm-3). Overall, both Porites colonies exerted a strong biological control to maintain stable calcifying fluid carbonate chemistry that favored the calcification process, especially under low-pH conditions. However, the decline in skeletal density observed at low pH provides critical insights into Porites vulnerability to future global change.
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Affiliation(s)
- Marine Canesi
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 911 91 Gif-sur-Yvette, France; Centre Scientifique de Monaco, 8 Quai Antoine Ier, 98000 Monaco, Principality of Monaco, Monaco; LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco.
| | - Éric Douville
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 911 91 Gif-sur-Yvette, France
| | - Louise Bordier
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 911 91 Gif-sur-Yvette, France
| | - Arnaud Dapoigny
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 911 91 Gif-sur-Yvette, France
| | - Gninwoyo Eric Coulibaly
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 911 91 Gif-sur-Yvette, France
| | - Paolo Montagna
- Istituto di Scienze Polari (ISP), Consiglio Nazionale delle Ricerche (CNR), Via Gobetti 101, 40129 Bologna, Italy; National Biodiversity Future Center S.c.a.r.l., Piazza Marina 61, Palermo, Italy
| | - Éric Béraud
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, 98000 Monaco, Principality of Monaco, Monaco; LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco
| | - Denis Allemand
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, 98000 Monaco, Principality of Monaco, Monaco; LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco
| | - Serge Planes
- Laboratoire d'Excellence "CORAIL", PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, 66100 Perpignan, France
| | - Paola Furla
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco; Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France; Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
| | - Eric Gilson
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco; Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France; Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France; Department of Medical Genetics, CHU, Nice, France
| | - Stephane Roberty
- InBioS - Animal Physiology and Ecophysiology, Department of Biology, Ecology & Evolution, University of Liège, Liège, Belgium
| | - Didier Zoccola
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, 98000 Monaco, Principality of Monaco, Monaco; LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco
| | - Stéphanie Reynaud
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, 98000 Monaco, Principality of Monaco, Monaco; LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Monaco
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Pinsky ML, Clark RD, Bos JT. Coral Reef Population Genomics in an Age of Global Change. Annu Rev Genet 2023; 57:87-115. [PMID: 37384733 DOI: 10.1146/annurev-genet-022123-102748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Coral reefs are both exceptionally biodiverse and threatened by climate change and other human activities. Here, we review population genomic processes in coral reef taxa and their importance for understanding responses to global change. Many taxa on coral reefs are characterized by weak genetic drift, extensive gene flow, and strong selection from complex biotic and abiotic environments, which together present a fascinating test of microevolutionary theory. Selection, gene flow, and hybridization have played and will continue to play an important role in the adaptation or extinction of coral reef taxa in the face of rapid environmental change, but research remains exceptionally limited compared to the urgent needs. Critical areas for future investigation include understanding evolutionary potential and the mechanisms of local adaptation, developing historical baselines, and building greater research capacity in the countries where most reef diversity is concentrated.
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Affiliation(s)
- Malin L Pinsky
- Department of Ecology, Evolution, and Natural Resources, Rutgers University, New Brunswick, New Jersey, USA
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, California, USA;
| | - René D Clark
- Department of Ecology, Evolution, and Natural Resources, Rutgers University, New Brunswick, New Jersey, USA
| | - Jaelyn T Bos
- Department of Ecology, Evolution, and Natural Resources, Rutgers University, New Brunswick, New Jersey, USA
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Kang BS, Lee SU, Hong S, Choi SK, Shin JE, Wie JH, Jo YS, Kim YH, Kil K, Chung YH, Jung K, Hong H, Park IY, Ko HS. Prediction of gestational diabetes mellitus in Asian women using machine learning algorithms. Sci Rep 2023; 13:13356. [PMID: 37587201 PMCID: PMC10432552 DOI: 10.1038/s41598-023-39680-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/28/2023] [Indexed: 08/18/2023] Open
Abstract
This study developed a machine learning algorithm to predict gestational diabetes mellitus (GDM) using retrospective data from 34,387 pregnancies in multi-centers of South Korea. Variables were collected at baseline, E0 (until 10 weeks' gestation), E1 (11-13 weeks' gestation) and M1 (14-24 weeks' gestation). The data set was randomly divided into training and test sets (7:3 ratio) to compare the performances of light gradient boosting machine (LGBM) and extreme gradient boosting (XGBoost) algorithms, with a full set of variables (original). A prediction model with the whole cohort achieved area under the receiver operating characteristics curve (AUC) and area under the precision-recall curve (AUPR) values of 0.711 and 0.246 at baseline, 0.720 and 0.256 at E0, 0.721 and 0.262 at E1, and 0.804 and 0.442 at M1, respectively. Then comparison of three models with different variable sets were performed: [a] variables from clinical guidelines; [b] selected variables from Shapley additive explanations (SHAP) values; and [c] Boruta algorithms. Based on model [c] with the least variables and similar or better performance than the other models, simple questionnaires were developed. The combined use of maternal factors and laboratory data could effectively predict individual risk of GDM using a machine learning model.
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Affiliation(s)
- Byung Soo Kang
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seon Ui Lee
- Department of Obstetrics and Gynecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Subeen Hong
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sae Kyung Choi
- Department of Obstetrics and Gynecology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae Eun Shin
- Department of Obstetrics and Gynecology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong Ha Wie
- Department of Obstetrics and Gynecology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yun Sung Jo
- Department of Obstetrics and Gynecology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yeon Hee Kim
- Department of Obstetrics and Gynecology, Uijeongbu St. Mary's Hospital,, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kicheol Kil
- Department of Obstetrics and Gynecology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoo Hyun Chung
- Department of Obstetrics and Gynecology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | | | | | - In Yang Park
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyun Sun Ko
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Simmer RA, Jansen EJ, Patterson KJ, Schnoor JL. Climate Change and the Sea: A Major Disruption in Steady State and the Master Variables. ACS ENVIRONMENTAL AU 2023; 3:195-208. [PMID: 37483305 PMCID: PMC10360203 DOI: 10.1021/acsenvironau.2c00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 07/25/2023]
Abstract
Since the beginning of the industrial revolution, humans have burned enormous quantities of coal, oil, and natural gas, rivaling nature's elemental cycles of C, N, and S. The result has been a disruption in a steady state of CO2 and other greenhouse gases in the atmosphere, a warming of the planet, and changes in master variables (temperature, pH, and pε) of the sea affecting critical physical, chemical, and biological reactions. Humans have also produced copious quantities of N and P fertilizers producing widespread coastal hypoxia and low dissolved oxygen conditions, which now threaten even the open ocean. Consequently, our massive alteration of state variables diminishes coral reefs, fisheries, and marine ecosystems, which are the foundation of life on Earth. We point to a myriad of actions and alternatives which will help to stem the tide of climate change and its effects on the sea while, at the same time, creating a more sustainable future for humans and ecosystems alike.
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Affiliation(s)
- Reid A. Simmer
- Department
of Civil and Environmental Engineering, IIHR Hydroscience & Engineering, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Emily J. Jansen
- Department
of Civil and Environmental Engineering, IIHR Hydroscience & Engineering, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Kyle J. Patterson
- Department
of Civil and Environmental Engineering, IIHR Hydroscience & Engineering, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Jerald L. Schnoor
- Department
of Civil and Environmental Engineering, IIHR Hydroscience & Engineering, The University of Iowa, Iowa City, Iowa 52242, United States
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Xu M, Cheng K, Xiao B, Tong M, Cai Z, Jong MC, Chen G, Zhou J. Bacterial Communities Vary from Different Scleractinian Coral Species and between Bleached and Non-Bleached Corals. Microbiol Spectr 2023; 11:e0491022. [PMID: 37191552 PMCID: PMC10269541 DOI: 10.1128/spectrum.04910-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
Bleaching is one of the most relevant factors implicated in the integrity of coral reef ecosystems, with the increasing frequency and intensity of damaging events representing a serious threat to reef biodiversity. Here, we analyzed changes in coral-associated bacteria from three types of non-bleached and bleached scleractinian corals (Acropora digitifera, Galaxea fascicularis, and Porites pukoensis) in Hainan Luhuitou peninsula coastal areas. The community structure of symbiotic bacteria differed significantly among the three apparently healthy corals. The bleached corals had higher bacterial alpha diversity and some specific bacteria genera, including Ruegeria, Methyloceanibacter, Filomicrobium, Halioglobus, Rubripirellula, Rhodopirellula, Silicimonas, Blastopirellula, Sva0996 marine group, Woeseia, and unclassified_c_Gammaproteobacteria, were consistently increased in bleached groups. Network analysis revealed significantly different degrees of modularity between bleached and non-bleached groups at the bacterial genus level, and a higher proportion of links was dominated by positive co-occurrences. Functional prediction analysis illustrated that coral-associated bacteria remained relatively consistent in the bleached and non-bleached groups. Structure equation modeling revealed that the bacterial community diversity and function were directly influenced by host and environment factors. These findings suggested that coral-associated bacterial responses to bleaching occur in a host-dependent manner, informing novel strategies for restoring coral and aiding adaption to bleaching stress. IMPORTANCE Accumulating evidence indicates that coral-associated bacteria play an important role in the health of holobionts. However, the variability of the symbiotic bacterial community structure among coral species with different coral health statuses remains largely unknown. Here, we investigated three apparent non-bleached (healthy) and bleached coral species (sampled in situ), involving related symbiotic bacterial profiles, including composition, alpha diversity, network relationship, and potential function. Structural equation modeling analysis was used to analyze the relationship between coral status and abiotic and biotic factors. The bacterial community structure of different groups was shown to exhibit host-specific traits. Both host and environmental impacts had primary effects on coral-associated microbial communities. Future studies are needed to identify the mechanisms that mediate divergent microbial consortia.
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Affiliation(s)
- Meiting Xu
- School of Environment, Harbin Institute of Technology, Harbin, People’s Republic of China
- School of Marine Science and Technology, Harbin Institute of Technology (Weihai), Weihai, Shandong Province, People’s Republic of China
| | - Keke Cheng
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, People’s Republic of China
| | - Baohua Xiao
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, People’s Republic of China
| | - Mengmeng Tong
- Ocean College, Zhejiang University, Zhoushan, People’s Republic of China
| | - Zhonghua Cai
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, People’s Republic of China
| | - Mui-Choo Jong
- Institute of Environment and Ecology, Shenzhen International Graduate School, Tsinghua University, Shenzhen, People’s Republic of China
| | - Guofu Chen
- School of Environment, Harbin Institute of Technology, Harbin, People’s Republic of China
- School of Marine Science and Technology, Harbin Institute of Technology (Weihai), Weihai, Shandong Province, People’s Republic of China
| | - Jin Zhou
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Institute for Ocean Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, People’s Republic of China
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Pratomo A, Bengen DG, Zamani NP, Lane C, Humphries AT, Borbee E, Subhan B, Madduppa H. Diversity and distribution of Symbiodiniaceae detected on coral reefs of Lombok, Indonesia using environmental DNA metabarcoding. PeerJ 2022; 10:e14006. [PMID: 36312748 PMCID: PMC9610659 DOI: 10.7717/peerj.14006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 08/14/2022] [Indexed: 01/19/2023] Open
Abstract
Background Dinoflagellates of family Symbiodiniaceae are important to coral reef ecosystems because of their contribution to coral health and growth; however, only a few studies have investigated the function and distribution of Symbiodiniaceae in Indonesia. Understanding the distribution of different kinds of Symbiodiniaceae can improve forecasting of future responses of various coral reef systems to climate change. This study aimed to determine the diversity of Symbiodiniaceae around Lombok using environmental DNA (eDNA). Methods Seawater and sediment samples were collected from 18 locations and filtered to obtain fractions of 0.4-12 and >12 µm. After extraction, molecular barcoding polymerase chain reaction was conducted to amplify the primary V9-SSU 18S rRNA gene, followed by sequencing (Illumina MiSeq). BLAST, Naïve-fit-Bayes, and maximum likelihood routines were used for classification and phylogenetic reconstruction. We compared results across sampling sites, sample types (seawater/sediment), and filter pore sizes (fraction). Results Phylogenetic analyses resolved the amplicon sequence variants into 16 subclades comprising six Symbiodiniaceae genera (or genera-equivalent clades) as follows: Symbiodinium, Breviolum, Cladocopium, Durusdinium, Foraminifera Clade G, and Halluxium. Comparative analyses showed that the three distinct lineages within Cladocopium, Durusdinium, and Foraminifera Clade G were the most common. Most of the recovered sequences appeared to be distinctive of different sampling locations, supporting the possibility that eDNA may resolve regional and local differences among Symbiodiniaceae genera and species. Conclusions eDNA surveys offer a rapid proxy for evaluating Symbiodiniaceae species on coral reefs and are a potentially useful approach to revealing diversity and relative ecological dominance of certain Symbiodiniaceae organisms. Moreover, Symbiodiniaceae eDNA analysis shows potential in monitoring the local and regional stability of coral-algal mutualisms.
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Affiliation(s)
- Arief Pratomo
- Raja Ali Haji Maritime University, Tanjungpinang, Indonesia,Department of Marine Science and Technology, Institut Pertanian Bogor, Bogor, Indonesia
| | - Dietriech G. Bengen
- Department of Marine Science and Technology, Institut Pertanian Bogor, Bogor, Indonesia
| | - Neviaty P. Zamani
- Department of Marine Science and Technology, Institut Pertanian Bogor, Bogor, Indonesia
| | - Christopher Lane
- Department of Biological Sciences, University of Rhode Island, Rhode Island, United States of America
| | - Austin T. Humphries
- Department of Fisheries, Animal and Veterinary Sciences, University of Rhode Island, Rhode Island, United States of America
| | - Erin Borbee
- Department of Biological Sciences, University of Rhode Island, Rhode Island, United States of America
| | - Beginer Subhan
- Department of Marine Science and Technology, Institut Pertanian Bogor, Bogor, Indonesia
| | - Hawis Madduppa
- Department of Marine Science and Technology, Institut Pertanian Bogor, Bogor, Indonesia,Oceanogen Research Center, Bogor, Indonesia
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Hall-Spencer JM, Belfiore G, Tomatsuri M, Porzio L, Harvey BP, Agostini S, Kon K. Decreased Diversity and Abundance of Marine Invertebrates at CO2 Seeps in Warm-Temperate Japan. Zoolog Sci 2022; 39:41-51. [DOI: 10.2108/zs210061] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/19/2021] [Indexed: 01/06/2023]
Affiliation(s)
- Jason M. Hall-Spencer
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, Shizuoka 415-0025, Japan
| | - Giuseppe Belfiore
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, Shizuoka 415-0025, Japan
| | - Morihiko Tomatsuri
- Fujifilm Software Co., Ltd., 2-10-23 Shinyokohama, Kohoku, Yokohama, Kanagawa 222-0033, Japan
| | - Lucia Porzio
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, Shizuoka 415-0025, Japan
| | - Ben P. Harvey
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, Shizuoka 415-0025, Japan
| | - Sylvain Agostini
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, Shizuoka 415-0025, Japan
| | - Koetsu Kon
- Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan
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Scucchia F, Malik A, Putnam HM, Mass T. Genetic and physiological traits conferring tolerance to ocean acidification in mesophotic corals. GLOBAL CHANGE BIOLOGY 2021; 27:5276-5294. [PMID: 34310005 DOI: 10.1111/gcb.15812] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
The integrity of coral reefs worldwide is jeopardized by ocean acidification (OA). Most studies conducted so far have focused on the vulnerability to OA of corals inhabiting shallow reefs while nothing is currently known about the response of mesophotic scleractinian corals. In this study, we assessed the susceptibility to OA of corals, together with their algal partners, inhabiting a wide depth range. We exposed fragments of the depth generalist coral Stylophora pistillata collected from either 5 or 45 m to simulated future OA conditions, and assessed key molecular, physiological and photosynthetic processes influenced by the lowered pH. Our comparative analysis reveals that mesophotic and shallow S. pistillata corals are genetically distinct and possess different symbiont types. Under the exposure to acidification conditions, we observed a 50% drop of metabolic rate in shallow corals, whereas mesophotic corals were able to maintain unaltered metabolic rates. Overall, our gene expression and physiological analyses show that mesophotic corals possess a greater capacity to cope with the effects of OA compared to their shallow counterparts. Such capability stems from physiological characteristics (i.e., biomass and lipids energetics), a greater capacity to regulate cellular acid-base parameters, and a higher baseline expression of cell adhesion and extracellular matrix genes. Moreover, our gene expression analysis suggests that the enhanced symbiont photochemical efficiency under high pCO2 levels could prevent acidosis of the host cells and it could support a greater translocation of photosynthates, increasing the energy pool available to the host. With this work, we provide new insights on the response to OA of corals living at mesophotic depths. Our investigation discloses key genetic and physiological traits underlying the potential for corals to cope with future OA conditions.
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Affiliation(s)
- Federica Scucchia
- Department of Marine Biology, Leon H. Charney school of Marine Sciences, University of Haifa, Haifa, Israel
- The Interuniversity Institute of Marine Sciences, Eilat, Israel
| | - Assaf Malik
- Department of Marine Biology, Leon H. Charney school of Marine Sciences, University of Haifa, Haifa, Israel
| | - Hollie M Putnam
- Department of Biological Sciences, University of Rhode Island, Kingston, Rhode Island, USA
| | - Tali Mass
- Department of Marine Biology, Leon H. Charney school of Marine Sciences, University of Haifa, Haifa, Israel
- Morris Kahn Marine Research Station, The Leon H. Charney School of Marine Sciences, University of Haifa, Sdot Yam, Israel
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