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Consortium of microalgae/nitrogen-fixing bacteria as a next-generation biofertilizer, biostimulant and biopesticide

datacite.subject.fosEngenharia e Tecnologia::Biotecnologia Ambiental
datacite.subject.fosEngenharia e Tecnologia::Outras Engenharias e Tecnologias
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorGouveia, Luisa
dc.contributor.authorFerreira, Alice
dc.contributor.authorBastos, Carolina R. V.
dc.contributor.authorAvetisova, Gayane
dc.contributor.authorKarapetyan, Zh.
dc.contributor.authorToplaghaltsyan, A.
dc.contributor.authorMelkonyan, Lusine
dc.date.accessioned2025-09-05T10:48:10Z
dc.date.available2025-09-05T10:48:10Z
dc.date.issued2025-07
dc.description.abstractABSTRACT: This study aims to provide insights into a new consortium of a microalga, twelve nitrogen-fixing (N-fixing) bacteria and a cyanobacterium. The microalga Tetradesmus obliquus (T), in conjunction with various N-fixing bacteria and the cyanobacterium Synechocystis sp. PCC 6803 (S), the N-fixing bacterium Sphingobacterium sp. L13G8 (5), cultivated in complete Bristol medium and in Bristol-NaNO3 free conditions, were examined. The study encompassed the analysis of their consortia, including evaluation of their growth, and potential as a biostimulant, biofertilizer and biopesticide, and assessed for sedimentation performance for targeted applications. The T and N-fixing bacteria consortia had higher growth in Bristol NaNO3-free media. The triple culture TS5 had the highest growth parameter (2.4 OD540) in the same medium, followed by T5. The consortia were employed to ascertain the efficacy of their biostimulants and biofertilizers on watercress (Lepidium sativum) and to determine the potency of their biopesticides against the fungal pathogens Fusarium oxysporum and Rhizoctonia solani (in certain consortia). Consortium T5 demonstrated the most significant impact on the seeds germination index (212.7%) and root length (6.0 cm) of L. sativum. The same consortium had a significant impact on the shoot length (4.4 cm) of L. sativum. Among all consortia that were examined, T5 exhibited significant inhibitory effects on the growth of F. oxysporum (60.6%) and R. solani (69.2%). In the same consortium, the rate of microalgal biomass sedimentation was enhanced by the N-fixing bacterium (0.4 cm h-1). Consortium T5 was the most effective in relation to growth and biomass sedimentation efficiency, in addition to its use as a biostimulant, biofertilizer and biopesticide. The created combination of microalga and N-fixing bacterium represents significant progress in the field of microalga cultivation, with notable benefits including improved biomass sedimentation and enhanced agricultural practices, as well as environmental friendliness and safety.eng
dc.identifier.citationGouveia, L., Ferreira, A., Bastos, C.V., Avetisova, G., Karapetyan, Z., Toplaghaltsyan, A. & Melkonyan, L. (2025). Consortium of microalgae/nitrogen-fixing bacteria as a next-generation biofertilizer, biostimulant and biopesticide. In: Journal of Applied Phycology, 2025, July [early acess]. https://doi.org/10.1007/s10811-025-03587-w
dc.identifier.doi10.1007/s10811-025-03587-w
dc.identifier.eissn1573-5176
dc.identifier.issn0921-8971
dc.identifier.urihttp://hdl.handle.net/10400.9/6035
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.relationBiofuels Research Infrastructure for Sharing Knowledge II
dc.relationDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
dc.relationDevelopment of an online LCA monitoring tool for improved sustainability of microalgae production in hydroponic drain water
dc.relation.hasversionhttps://link.springer.com/article/10.1007/s10811-025-03587-w
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMicroalgae
dc.subjectTetradesmus obliquus
dc.subjectSynechocystis
dc.subjectBiostimulant
dc.subjectBiofertilizers
dc.titleConsortium of microalgae/nitrogen-fixing bacteria as a next-generation biofertilizer, biostimulant and biopesticideeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBiofuels Research Infrastructure for Sharing Knowledge II
oaire.awardTitleDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
oaire.awardTitleDevelopment of an online LCA monitoring tool for improved sustainability of microalgae production in hydroponic drain water
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/731101/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144122%2F2019/PT
oaire.awardURIhttp://hdl.handle.net/10400.9/6032
oaire.citation.titleJournal of Applied Phycology
oaire.fundingStreamH2020
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGouveia
person.familyNameFerreira
person.givenNameLuisa
person.givenNameAlice
person.identifierH-4046-2011
person.identifier.ciencia-id581B-924A-84DD
person.identifier.ciencia-idD115-8FF3-9097
person.identifier.orcid0000-0003-0196-6360
person.identifier.orcid0000-0002-2397-3943
person.identifier.scopus-author-id7004135834
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication63dcbe08-14df-4886-98b7-2945cbe0e062
relation.isAuthorOfPublicationd0b70ea9-bb53-452c-ab86-b4bf8aee0249
relation.isAuthorOfPublication.latestForDiscovery63dcbe08-14df-4886-98b7-2945cbe0e062
relation.isProjectOfPublicationf95f3736-5e69-4639-865b-7c3498c4ce11
relation.isProjectOfPublication57a728de-12ae-4267-819b-6fb5398ad1ea
relation.isProjectOfPublicationd23f47b0-bb02-4912-9c88-837a1b4c5ce7
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