Rhodolith physiology across the atlantic: towards a better mechanistic understanding of Intra- and interspecific differences
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , , , , , , |
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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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) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133330440978432 |