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Collective electrical oscillations of a diatom population induced by dark stress

2018-04Journal article Open access
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dc.contributor.authorRocha, Paulo R. F.
dc.contributor.authorSilva, Alexandra D.
dc.contributor.authorGodinho, Lia
dc.contributor.authorDane, Willem
dc.contributor.authorEstrela, Pedro
dc.contributor.authorVandamme, Lode K. J.
dc.contributor.authorPereira-Leal, Jose B.
dc.contributor.authorde Leeuw, Dago M.
dc.contributor.authorLeite, Ricardo
dc.date.accessioned2018-12-07T14:52:35Z
dc.date.available2018-12-07T14:52:35Z
dc.date.issued2018-04
dc.description.abstractDiatoms 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.
dc.description.sponsorshipPortuguese 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)
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1038/s41598-018-23928-9
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.1/11130
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNature Publishing Group
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMarine Diatom
dc.subjectCoscinodiscus-Wailesii
dc.subjectMembrane voltage
dc.subjectCalcium waves
dc.subjectDiffusion
dc.subjectWater
dc.subjectElectrophysiology
dc.subjectNoise
dc.subjectFluctuations
dc.subjectPerception
dc.titleCollective electrical oscillations of a diatom population induced by dark stress
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F91518%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.citation.startPage5484
oaire.citation.titleScientific Reports
oaire.citation.volume8
oaire.fundingStreamSFRH
oaire.fundingStream5876
person.familyNameDuarte Silva
person.familyNameLeite
person.givenNameAlexandra
person.givenNameRicardo
person.identifier447622
person.identifier.ciencia-id0F11-2E24-DBFB
person.identifier.ciencia-idF115-256E-C84D
person.identifier.orcid0000-0003-0384-4447
person.identifier.orcid0000-0002-9622-3895
person.identifier.ridH-8344-2012
person.identifier.ridB-3389-2008
person.identifier.scopus-author-id8518688800
person.identifier.scopus-author-id8362650900
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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