Collective electrical oscillations of a diatom population induced by dark stress
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10400.1/11130 |
Resumo: | Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demonstrate that a population of diatoms under darkness show quasi-periodic electrical oscillations, or intercellular waves. The origin is paracrine signaling, which is a feedback, or survival, mechanism that counteracts changes in the physicochemical environment. The intracellular messenger is related to Ca2+ ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca2+ channel inhibitor. The transport of Ca2+ ions through the membrane to the extracellular medium is blocked and the intercellular waves disappear. The translation of microalgae cooperative signaling paves the way for early detection and prevention of harmful blooms and an extensive range of stress-induced alterations in the aquatic ecosystem. |
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Collective electrical oscillations of a diatom population induced by dark stressMarine DiatomCoscinodiscus-WailesiiMembrane voltageCalcium wavesDiffusionWaterElectrophysiologyNoiseFluctuationsPerceptionDiatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demonstrate that a population of diatoms under darkness show quasi-periodic electrical oscillations, or intercellular waves. The origin is paracrine signaling, which is a feedback, or survival, mechanism that counteracts changes in the physicochemical environment. The intracellular messenger is related to Ca2+ ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca2+ channel inhibitor. The transport of Ca2+ ions through the membrane to the extracellular medium is blocked and the intercellular waves disappear. The translation of microalgae cooperative signaling paves the way for early detection and prevention of harmful blooms and an extensive range of stress-induced alterations in the aquatic ecosystem.Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/91518/2012, UID/Multi/04326/2013]; SNMB - INOV: Innovation for a more competitive shellfish sector; Operational Program (OP); European Union through the European Structural Funds and Investment Funds (FEEI); European Maritime and Fisheries Fund (EMFF)Nature Publishing GroupSapientiaRocha, Paulo R. F.Silva, Alexandra D.Godinho, LiaDane, WillemEstrela, PedroVandamme, Lode K. J.Pereira-Leal, Jose B.de Leeuw, Dago M.Leite, Ricardo2018-12-07T14:52:35Z2018-042018-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11130eng2045-232210.1038/s41598-018-23928-9info: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:RCAAP2023-07-24T10:22:53Zoai:sapientia.ualg.pt:10400.1/11130Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:39.181035Repositório 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 |
Collective electrical oscillations of a diatom population induced by dark stress |
title |
Collective electrical oscillations of a diatom population induced by dark stress |
spellingShingle |
Collective electrical oscillations of a diatom population induced by dark stress Rocha, Paulo R. F. Marine Diatom Coscinodiscus-Wailesii Membrane voltage Calcium waves Diffusion Water Electrophysiology Noise Fluctuations Perception |
title_short |
Collective electrical oscillations of a diatom population induced by dark stress |
title_full |
Collective electrical oscillations of a diatom population induced by dark stress |
title_fullStr |
Collective electrical oscillations of a diatom population induced by dark stress |
title_full_unstemmed |
Collective electrical oscillations of a diatom population induced by dark stress |
title_sort |
Collective electrical oscillations of a diatom population induced by dark stress |
author |
Rocha, Paulo R. F. |
author_facet |
Rocha, Paulo R. F. Silva, Alexandra D. Godinho, Lia Dane, Willem Estrela, Pedro Vandamme, Lode K. J. Pereira-Leal, Jose B. de Leeuw, Dago M. Leite, Ricardo |
author_role |
author |
author2 |
Silva, Alexandra D. Godinho, Lia Dane, Willem Estrela, Pedro Vandamme, Lode K. J. Pereira-Leal, Jose B. de Leeuw, Dago M. Leite, Ricardo |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Rocha, Paulo R. F. Silva, Alexandra D. Godinho, Lia Dane, Willem Estrela, Pedro Vandamme, Lode K. J. Pereira-Leal, Jose B. de Leeuw, Dago M. Leite, Ricardo |
dc.subject.por.fl_str_mv |
Marine Diatom Coscinodiscus-Wailesii Membrane voltage Calcium waves Diffusion Water Electrophysiology Noise Fluctuations Perception |
topic |
Marine Diatom Coscinodiscus-Wailesii Membrane voltage Calcium waves Diffusion Water Electrophysiology Noise Fluctuations Perception |
description |
Diatoms are photosynthetic microalgae, a group with a major environmental role on the planet due to the biogeochemical cycling of silica and global fixation of carbon. However, they can evolve into harmful blooms through a resourceful communication mechanism, not yet fully understood. Here, we demonstrate that a population of diatoms under darkness show quasi-periodic electrical oscillations, or intercellular waves. The origin is paracrine signaling, which is a feedback, or survival, mechanism that counteracts changes in the physicochemical environment. The intracellular messenger is related to Ca2+ ions since spatiotemporal changes in their concentration match the characteristics of the intercellular waves. Our conclusion is supported by using a Ca2+ channel inhibitor. The transport of Ca2+ ions through the membrane to the extracellular medium is blocked and the intercellular waves disappear. The translation of microalgae cooperative signaling paves the way for early detection and prevention of harmful blooms and an extensive range of stress-induced alterations in the aquatic ecosystem. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-07T14:52:35Z 2018-04 2018-04-01T00:00:00Z |
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/10400.1/11130 |
url |
http://hdl.handle.net/10400.1/11130 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 10.1038/s41598-018-23928-9 |
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 |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
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 |
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 |
repository.mail.fl_str_mv |
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1799133260843843584 |