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Alginate Microencapsulation as a Tool to Improve Biostimulant Activity Against Water Deficits

2025-06-10Artigo científico Acesso aberto
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dc.contributor.authorJiménez-Arias, David
dc.contributor.authorMorales-Sierra, Sarai
dc.contributor.authorGarcía-García, Ana L.
dc.contributor.authorHerrera, Antonio J.
dc.contributor.authorPérez Schmeller, Rayco
dc.contributor.authorSuárez, Emma
dc.contributor.authorSantana-Mayor, Álvaro
dc.contributor.authorSilva, Patrícia
dc.contributor.authorBorges, João Paulo
dc.contributor.authorCarvalho, Miguel Â. A. Pinheiro de
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2025-08-29T22:25:08Z
dc.date.available2025-08-29T22:25:08Z
dc.date.issued2025-06-10
dc.descriptionFunding Information: D.J.-A. thanks the European Commission for the Marie Sklodowska Curie contract (101025125). R.P.S. thanks Cabildo de Tenerife for the postdoctoral contract within the “Programa Talentum Innovación CSIC”. Publisher Copyright: © 2025 by the authors.
dc.description.abstractClimate change is reducing agricultural productivity through altered weather patterns and extreme events, potentially decreasing yields by 10–25%. Biostimulants like pyroglutamic acid can enhance plant tolerance to water stress, but their rapid degradation in the soil limits effectiveness. Encapsulation in alginate matrices promises to be a good solution, protecting the compound and enabling controlled release. This study reports, for the first time, that encapsulated pyroglutamic acid markedly enhances drought tolerance in tomato and maize plants. The encapsulation strategy reduces effective concentration by an order of magnitude while significantly improving water use efficiency, photo-synthetic performance, and overall stress resilience. These findings demonstrate that alginate-based encapsulation substantially increases biostimulant uptake and efficacy, providing a novel and efficient strategy to mitigate water stress in crops, with important implications for climate-resilient agriculture. Two encapsulation methods for generating the alginate microcapsules are compared: ionic gelation with Nisco® system and the electrospray technique.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent17
dc.format.extent3142096
dc.identifier.doi10.3390/polym17121617
dc.identifier.issn2073-4360
dc.identifier.otherPURE: 128218646
dc.identifier.otherPURE UUID: 57705db4-0870-45bd-82b1-60678991880f
dc.identifier.otherScopus: 105009004697
dc.identifier.otherWOS: 001514893600001
dc.identifier.otherPubMed: 40574145
dc.identifier.otherPubMedCentral: PMC12197189
dc.identifier.otherORCID: /0000-0002-3996-6545/work/190808410
dc.identifier.urihttp://hdl.handle.net/10362/187214
dc.identifier.urlhttps://www.scopus.com/pages/publications/105009004697
dc.identifier.urlhttps://www.webofscience.com/wos/woscc/full-record/WOS:001514893600001
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/101025125/EU
dc.relationBiostimulants nanoencapsulation to increase yield under drought stress
dc.subjectAlginate microcapsules
dc.subjectBiostimulants
dc.subjectWater deficit stress
dc.subjectGeneral Chemistry
dc.subjectPolymers and Plastics
dc.subjectSDG 2 - Zero Hunger
dc.subjectSDG 13 - Climate Action
dc.titleAlginate Microencapsulation as a Tool to Improve Biostimulant Activity Against Water Deficitsen
dc.typejournal article
degois.publication.firstPage1
degois.publication.issue12
degois.publication.lastPage17
degois.publication.titlePolymers
degois.publication.volume17
dspace.entity.typePublication
oaire.awardNumber101025125
oaire.awardTitleBiostimulants nanoencapsulation to increase yield under drought stress
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/101025125/EU
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccess
relation.isProjectOfPublication4252cd6f-753b-4a9f-838e-2484b099820b
relation.isProjectOfPublication.latestForDiscovery4252cd6f-753b-4a9f-838e-2484b099820b

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