Publicação
Unravelling the chemical nature of the spawning-inducing pheromone (SIP) in the pacific oyster (Magallana gigas)
| datacite.subject.sdg | 14:Proteger a Vida Marinha | |
| datacite.subject.sdg | 02:Erradicar a Fome | |
| datacite.subject.sdg | 12:Produção e Consumo Sustentáveis | |
| dc.contributor.author | Rato, Ana Cláudia Nunes | |
| dc.contributor.author | sandra, Joaquim | |
| dc.contributor.author | Matias, Domitília | |
| dc.contributor.author | Hubbard, Peter | |
| dc.date.accessioned | 2026-01-13T14:17:27Z | |
| dc.date.available | 2026-01-13T14:17:27Z | |
| dc.date.issued | 2026-01-08 | |
| dc.description.abstract | In external fertilisation, spawning synchrony is often mediated by pheromones. However, their chemical nature is rarely well-established; this is particularly true for bivalves. This study used an electrophysiological technique—the electro-osphradiogram (EOsG)—to investigate the spawning-inducing pheromone (SIP) in the Pacific oyster (Magallana gigas), a species of economic and environmental relevance. Recording the electrophysiological response of the osphradium to conspecific sperm milt and its fractions, we show that the SIP is multicomponent, likely proteinaceous—with at least one component linked to the spermatozoa and the other components in free solution—and all resistant to freezing. At least three active components are involved: one of about 35 kDa, one between 3 and 10 kDa and one of less than 3 kDa. All three, alone, evoke responses from the osphradium, but all three must probably be present to evoke the full biological response—gamete release— in the receiver. All three are likely polar; none were retained by a range of solid-phase extraction cartridges. We suggest that the EOsG will be useful to isolate and identify the individual components of the oyster SIP. Successful identification of the SIP will represent an important step towards more sustainable and efficient bivalve hatchery practices. | eng |
| dc.description.sponsorship | UID/04326/2025; UID/PRR/04326/2025 | |
| dc.identifier.doi | 10.3390/fishes11010034 | |
| dc.identifier.issn | 2410-3888 | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/28087 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | MDPI | |
| dc.relation | Chemical communication in bivalves: hormonal and pheromonal roles | |
| dc.relation | Centre for Marine and Environmental Research | |
| dc.relation.ispartof | Fishes | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Spawning synchrony | |
| dc.subject | Bivalve | |
| dc.subject | Aquaculture | |
| dc.subject | Chemical identity | |
| dc.subject | Electrophysiology | |
| dc.title | Unravelling the chemical nature of the spawning-inducing pheromone (SIP) in the pacific oyster (Magallana gigas) | eng |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Chemical communication in bivalves: hormonal and pheromonal roles | |
| oaire.awardTitle | Centre for Marine and Environmental Research | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F147215%2F2019/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT | |
| oaire.citation.issue | 1 | |
| oaire.citation.title | Fishes | |
| oaire.citation.volume | 11 | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Rato | |
| person.familyName | Hubbard | |
| person.givenName | Ana Cláudia Nunes | |
| person.givenName | Peter | |
| person.identifier.ciencia-id | 6D14-EA6C-E8D1 | |
| person.identifier.ciencia-id | 951F-BA4B-A21F | |
| person.identifier.orcid | 0000-0002-1150-2757 | |
| person.identifier.orcid | 0000-0002-3007-4647 | |
| person.identifier.rid | B-2823-2008 | |
| person.identifier.scopus-author-id | 7005928467 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
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| relation.isAuthorOfPublication.latestForDiscovery | 1786b6bc-8eec-48b2-9535-70cef72f9e4c | |
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