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Grazerā€induced bioluminescence and toxicity in marine dinoflagellates

2025-10-31Journal article Open access
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dc.contributor.authorGonzaloā€Valmala, Paula
dc.contributor.authorPourdanandeh, Milad
dc.contributor.authorLage, Sandra
dc.contributor.authorSelander, Erik
dc.date.accessioned2025-12-03T10:11:23Z
dc.date.available2025-12-03T10:11:23Z
dc.date.issued2025-10-31
dc.description.abstractMarine copepods are the most abundant multicellular zooplankton in the global oceans. They imprint their surrounding waters with a unique bouquet of chemical compounds, including polar lipids such as copepodamides. Prey organisms can detect copepodamides and respond by inducing defensive traits including bioluminescence, toxin production, changes in colony size, and structural modifications. This mechanism has been suggested to contribute to harmful algal bloom formation, but to date only a limited number of species and strains have been experimentally exposed to copepodamides. Here, we quantify bioluminescence and toxin content in response to increasing concentrations of copepodamides in three harmful algal bloom-forming species of marine dinoflagellates: Alexandrium catenella, Protoceratium reticulatum, and Gymnodinium catenatum. All three species up-regulated their defensive traits in response to copepodamide exposure, including the first example of copepodamide-induced GC-toxin production. Neither bioluminescence nor toxin production was associated with measurable costs in terms of reduced growth rates. The results support the role of copepodamides as general alarm cues in marine phytoplankton. Moreover, the expression of simultaneous defensive traits may confound studies addressing the costs and benefits of these co-varying traits.eng
dc.description.sponsorshipLCF/BQ/PR23/11980049; EMBRC.PT ALG01-0145-FEDER-022121
dc.identifier.doi10.1002/lno.70255
dc.identifier.eissn1939-5590
dc.identifier.issn0024-3590
dc.identifier.urihttp://hdl.handle.net/10400.1/27926
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofLimnology and Oceanography
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.titleGrazerā€induced bioluminescence and toxicity in marine dinoflagellateseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.endPage15
oaire.citation.startPage1
oaire.citation.titleLimnology and Oceanography
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLage
person.givenNameSandra
person.identifier454970
person.identifier.ciencia-idDA15-C119-BDC8
person.identifier.orcid0000-0003-0167-7163
person.identifier.scopus-author-id54585529500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundaĆ§Ć£o para a CiĆŖncia e a Tecnologia
project.funder.nameFundaĆ§Ć£o para a CiĆŖncia e a Tecnologia
project.funder.nameFundaĆ§Ć£o para a CiĆŖncia e a Tecnologia
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