Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis

Detalhes bibliográficos
Autor(a) principal: Leal, Miguel C.
Data de Publicação: 2015
Outros Autores: Hoadley, Kenneth, Pettay, D. Tye, Grajales, Alejandro, Calado, Ricardo, Warner, Mark E.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/17904
Resumo: The association between cnidarians and photosynthetic dinoflagellates within the genus Symbiodinium is a prevalent relationship in tropical and subtropical marine environments. Although the diversity of Symbiodinium provides a possible axis for niche diversification, increased functional range and resilience to physical stressors such as elevated temperature, howsuch diversity relates to the physiological balance between autotrophy and heterotrophy of the host animal remains unknown. Here, we experimentally show interspecific and intraspecific variability of photosynthetic carbon fixation and subsequent translocation by Symbiodinium to the model cnidarian host Aiptasia pallida.By using a clonal anemone line harboring different species of Symbiodinium, we determined that symbiont identity influences trophic plasticity through its density, capacity to fix carbon, quantity of translocated carbon and ultimately the host’s capacity to ingest and digest prey. Symbiont carbon translocation and host prey ingestion were positively correlated across symbiont combinations that consisted of different isoclonal lines of Symbiodinium minutum, while a combination with type D4-5 Symbiodinium displayed lower carbon translocation, and prey capture and digestion more similar to Aiptasia lacking symbionts. The absence of a shift toward greater heterotrophy when carbon translocation is low suggests that the metabolic demand of feeding and digestion may overwhelm nutritional stores when photosynthesis is reduced, and amends the possible role of animal feeding in resistance to or recovery fromthe effects of climate change in more obligate symbioses such as reef-building corals.
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spelling Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosisSymbiodiniumFunctional diversityNutritionPhotosynthesisThe association between cnidarians and photosynthetic dinoflagellates within the genus Symbiodinium is a prevalent relationship in tropical and subtropical marine environments. Although the diversity of Symbiodinium provides a possible axis for niche diversification, increased functional range and resilience to physical stressors such as elevated temperature, howsuch diversity relates to the physiological balance between autotrophy and heterotrophy of the host animal remains unknown. Here, we experimentally show interspecific and intraspecific variability of photosynthetic carbon fixation and subsequent translocation by Symbiodinium to the model cnidarian host Aiptasia pallida.By using a clonal anemone line harboring different species of Symbiodinium, we determined that symbiont identity influences trophic plasticity through its density, capacity to fix carbon, quantity of translocated carbon and ultimately the host’s capacity to ingest and digest prey. Symbiont carbon translocation and host prey ingestion were positively correlated across symbiont combinations that consisted of different isoclonal lines of Symbiodinium minutum, while a combination with type D4-5 Symbiodinium displayed lower carbon translocation, and prey capture and digestion more similar to Aiptasia lacking symbionts. The absence of a shift toward greater heterotrophy when carbon translocation is low suggests that the metabolic demand of feeding and digestion may overwhelm nutritional stores when photosynthesis is reduced, and amends the possible role of animal feeding in resistance to or recovery fromthe effects of climate change in more obligate symbioses such as reef-building corals.The Company of Biologists Ltd2017-06-21T11:19:41Z2015-01-01T00:00:00Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/17904eng0022-094910.1242/jeb.115519Leal, Miguel C.Hoadley, KennethPettay, D. TyeGrajales, AlejandroCalado, RicardoWarner, Mark E.info: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:RCAAP2024-02-22T11:31:28Zoai:ria.ua.pt:10773/17904Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:51:52.237566Repositório 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 Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
title Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
spellingShingle Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
Leal, Miguel C.
Symbiodinium
Functional diversity
Nutrition
Photosynthesis
title_short Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
title_full Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
title_fullStr Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
title_full_unstemmed Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
title_sort Symbiont type influences trophic plasticity of a model cnidarian-dinoflagellate symbiosis
author Leal, Miguel C.
author_facet Leal, Miguel C.
Hoadley, Kenneth
Pettay, D. Tye
Grajales, Alejandro
Calado, Ricardo
Warner, Mark E.
author_role author
author2 Hoadley, Kenneth
Pettay, D. Tye
Grajales, Alejandro
Calado, Ricardo
Warner, Mark E.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Leal, Miguel C.
Hoadley, Kenneth
Pettay, D. Tye
Grajales, Alejandro
Calado, Ricardo
Warner, Mark E.
dc.subject.por.fl_str_mv Symbiodinium
Functional diversity
Nutrition
Photosynthesis
topic Symbiodinium
Functional diversity
Nutrition
Photosynthesis
description The association between cnidarians and photosynthetic dinoflagellates within the genus Symbiodinium is a prevalent relationship in tropical and subtropical marine environments. Although the diversity of Symbiodinium provides a possible axis for niche diversification, increased functional range and resilience to physical stressors such as elevated temperature, howsuch diversity relates to the physiological balance between autotrophy and heterotrophy of the host animal remains unknown. Here, we experimentally show interspecific and intraspecific variability of photosynthetic carbon fixation and subsequent translocation by Symbiodinium to the model cnidarian host Aiptasia pallida.By using a clonal anemone line harboring different species of Symbiodinium, we determined that symbiont identity influences trophic plasticity through its density, capacity to fix carbon, quantity of translocated carbon and ultimately the host’s capacity to ingest and digest prey. Symbiont carbon translocation and host prey ingestion were positively correlated across symbiont combinations that consisted of different isoclonal lines of Symbiodinium minutum, while a combination with type D4-5 Symbiodinium displayed lower carbon translocation, and prey capture and digestion more similar to Aiptasia lacking symbionts. The absence of a shift toward greater heterotrophy when carbon translocation is low suggests that the metabolic demand of feeding and digestion may overwhelm nutritional stores when photosynthesis is reduced, and amends the possible role of animal feeding in resistance to or recovery fromthe effects of climate change in more obligate symbioses such as reef-building corals.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015
2017-06-21T11:19:41Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/17904
url http://hdl.handle.net/10773/17904
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0022-0949
10.1242/jeb.115519
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dc.publisher.none.fl_str_mv The Company of Biologists Ltd
publisher.none.fl_str_mv The Company of Biologists Ltd
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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