Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences

Detalhes bibliográficos
Autor(a) principal: Schubert, Nadine
Data de Publicação: 2022
Outros Autores: Peña, Viviana, Salazar, Vinícius W., Horta, Paulo A., Neves, Pedro, Ribeiro, Cláudia, Otero-Ferrer, Francisco, Tuya, Fernando, Espino, Fernando, Schoenrock, Kathryn, Hofmann, Laurie C., Le Gall, Line, Santos, Rui, Silva, João
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/18641
Resumo: Coralline algae are important components in a large variety of ecosystems. Among them, rhodoliths are a group of free-living coralline red algae that cover extensive coastal areas, from tropical to polar regions. In contrast to other ecosystem engineers, limited research efforts preclude our understanding of their physiology, underlying mechanisms, drivers and potential differences related to species under varying environments. In this study, we investigated the photosynthetic and calcification mechanisms of six Atlantic rhodolith species from different latitudes, as well as intra-specific differences in one species from four locations. Laboratory incubations under varying light levels provided simultaneous photosynthesis- and calcification-irradiance curves, allowing the assessment of inter- and intra-specific differences on the coupling between these two processes. Stable isotope analysis and specific inhibitor experiments were performed to characterize and compare carbon-concentrating mechanisms (CCMs), as well as the involvement of specific ion-transporters for calcification. Our findings showed significant differences in rhodolith physiological mechanisms that were partially driven by local environmental conditions (light, temperature). High variability was found in the coupling between photosynthesis and calcification, in CCM-strategies, and in the importance of specific ion transporters and enzymes involved in calcification. While calcification was strongly correlated with photosynthesis in all species, the strength of this link was species-specific. Calcification was also found to be reliant on hotosynthesis- and light-independent processes. The latter showed a high plasticity in their expression among species, also influenced by the local environment. Overall, our findings demonstrate that (1) rhodolith calcification is a biologically-controlled process and (2) the mechanisms associated with photosynthesis and calcification display a large variability among species, suggesting potential differences not only in their individual, but also community responses to environmental changes, such as climate change.
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spelling Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differencesCalcification mechanismCarbon-concentrating mechanism (CCM)Coralline algae (maerl)Photosynthesis-calcification relationshipRodolith bedsCoralline algae are important components in a large variety of ecosystems. Among them, rhodoliths are a group of free-living coralline red algae that cover extensive coastal areas, from tropical to polar regions. In contrast to other ecosystem engineers, limited research efforts preclude our understanding of their physiology, underlying mechanisms, drivers and potential differences related to species under varying environments. In this study, we investigated the photosynthetic and calcification mechanisms of six Atlantic rhodolith species from different latitudes, as well as intra-specific differences in one species from four locations. Laboratory incubations under varying light levels provided simultaneous photosynthesis- and calcification-irradiance curves, allowing the assessment of inter- and intra-specific differences on the coupling between these two processes. Stable isotope analysis and specific inhibitor experiments were performed to characterize and compare carbon-concentrating mechanisms (CCMs), as well as the involvement of specific ion-transporters for calcification. Our findings showed significant differences in rhodolith physiological mechanisms that were partially driven by local environmental conditions (light, temperature). High variability was found in the coupling between photosynthesis and calcification, in CCM-strategies, and in the importance of specific ion transporters and enzymes involved in calcification. While calcification was strongly correlated with photosynthesis in all species, the strength of this link was species-specific. Calcification was also found to be reliant on hotosynthesis- and light-independent processes. The latter showed a high plasticity in their expression among species, also influenced by the local environment. Overall, our findings demonstrate that (1) rhodolith calcification is a biologically-controlled process and (2) the mechanisms associated with photosynthesis and calcification display a large variability among species, suggesting potential differences not only in their individual, but also community responses to environmental changes, such as climate change.EMBRC.PT ALG-01-0145-FEDER-022121; 01.13.0353-00; 426215/2016-8; PIBIC 135940/2016-8; M1420-01-0145-FEDER-000001;Frontiers Media SASapientiaSchubert, NadinePeña, VivianaSalazar, Vinícius W.Horta, Paulo A.Neves, PedroRibeiro, CláudiaOtero-Ferrer, FranciscoTuya, FernandoEspino, FernandoSchoenrock, KathrynHofmann, Laurie C.Le Gall, LineSantos, RuiSilva, João2022-12-15T11:25:19Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/18641eng10.3389/fmars.2022.9216392296-7745info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:30:56Zoai:sapientia.ualg.pt:10400.1/18641Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:08:23.841720Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
title Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
spellingShingle Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
Schubert, Nadine
Calcification mechanism
Carbon-concentrating mechanism (CCM)
Coralline algae (maerl)
Photosynthesis-calcification relationship
Rodolith beds
title_short Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
title_full Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
title_fullStr Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
title_full_unstemmed Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
title_sort Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
author Schubert, Nadine
author_facet Schubert, Nadine
Peña, Viviana
Salazar, Vinícius W.
Horta, Paulo A.
Neves, Pedro
Ribeiro, Cláudia
Otero-Ferrer, Francisco
Tuya, Fernando
Espino, Fernando
Schoenrock, Kathryn
Hofmann, Laurie C.
Le Gall, Line
Santos, Rui
Silva, João
author_role author
author2 Peña, Viviana
Salazar, Vinícius W.
Horta, Paulo A.
Neves, Pedro
Ribeiro, Cláudia
Otero-Ferrer, Francisco
Tuya, Fernando
Espino, Fernando
Schoenrock, Kathryn
Hofmann, Laurie C.
Le Gall, Line
Santos, Rui
Silva, João
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Schubert, Nadine
Peña, Viviana
Salazar, Vinícius W.
Horta, Paulo A.
Neves, Pedro
Ribeiro, Cláudia
Otero-Ferrer, Francisco
Tuya, Fernando
Espino, Fernando
Schoenrock, Kathryn
Hofmann, Laurie C.
Le Gall, Line
Santos, Rui
Silva, João
dc.subject.por.fl_str_mv Calcification mechanism
Carbon-concentrating mechanism (CCM)
Coralline algae (maerl)
Photosynthesis-calcification relationship
Rodolith beds
topic Calcification mechanism
Carbon-concentrating mechanism (CCM)
Coralline algae (maerl)
Photosynthesis-calcification relationship
Rodolith beds
description Coralline algae are important components in a large variety of ecosystems. Among them, rhodoliths are a group of free-living coralline red algae that cover extensive coastal areas, from tropical to polar regions. In contrast to other ecosystem engineers, limited research efforts preclude our understanding of their physiology, underlying mechanisms, drivers and potential differences related to species under varying environments. In this study, we investigated the photosynthetic and calcification mechanisms of six Atlantic rhodolith species from different latitudes, as well as intra-specific differences in one species from four locations. Laboratory incubations under varying light levels provided simultaneous photosynthesis- and calcification-irradiance curves, allowing the assessment of inter- and intra-specific differences on the coupling between these two processes. Stable isotope analysis and specific inhibitor experiments were performed to characterize and compare carbon-concentrating mechanisms (CCMs), as well as the involvement of specific ion-transporters for calcification. Our findings showed significant differences in rhodolith physiological mechanisms that were partially driven by local environmental conditions (light, temperature). High variability was found in the coupling between photosynthesis and calcification, in CCM-strategies, and in the importance of specific ion transporters and enzymes involved in calcification. While calcification was strongly correlated with photosynthesis in all species, the strength of this link was species-specific. Calcification was also found to be reliant on hotosynthesis- and light-independent processes. The latter showed a high plasticity in their expression among species, also influenced by the local environment. Overall, our findings demonstrate that (1) rhodolith calcification is a biologically-controlled process and (2) the mechanisms associated with photosynthesis and calcification display a large variability among species, suggesting potential differences not only in their individual, but also community responses to environmental changes, such as climate change.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-15T11:25:19Z
2022
2022-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/18641
url http://hdl.handle.net/10400.1/18641
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.3389/fmars.2022.921639
2296-7745
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Frontiers Media SA
publisher.none.fl_str_mv Frontiers Media SA
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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