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Sustainable agriculture with cyanobacterial biomass: Soil experiments on spinach and radish plants

2025-11-20Artigo de investigação Acesso embargado
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dc.contributor.authorMassa, Anabella
dc.contributor.authorMartins, Diogo
dc.contributor.authorAzevedo, Joana
dc.contributor.authorPrieto, Ana I.
dc.contributor.authorCamean, Ana M.
dc.contributor.authorDiez-Quijada, Leticia
dc.contributor.authorJos, Angeles
dc.contributor.authorReimão, Mariana
dc.contributor.authorAzevedo, Rui
dc.contributor.authorPinto, Edgar
dc.contributor.authorAlmeida, Agostinho
dc.contributor.authorVasconcelos, Vitor
dc.contributor.authorCampos, Alexandre
dc.contributor.authorFreitas, Marisa
dc.contributor.authorREIMÃO BORGES LOPES DA SILVA, MARIANA
dc.date.accessioned2026-05-29T14:28:44Z
dc.date.available2026-05-29T14:28:44Z
dc.date.issued2025-11-20
dc.description.abstractTo support sustainable food production and improve crop yields, it is essential to explore bio-based plant growth- promoting products. Cyanobacterial biomass has shown potential to enhance soil quality and agricultural productivity. However, some cyanobacteria produce cyanotoxins, such as microcystins, cylindrospermopsin and anatoxin-a, which can adversely affect plant development depending on their concentration. This study evaluated the potential of cyanobacterial biomass as a soil amendment and plant growth stimulant by assessing growth, nutrient content and toxin accumulation in spinach and radish plants. Plants were cultivated in soil treated with no amendment, commercial fertilizer, or cyanobacterial biomass from Microcystis aeruginosa (microcystins-producer), Anabaena sp. (anatoxin-a-producer), Raphidiopsis raciborskii (non-cylindrospermopsin producer), and R. raciborskii (cylindrospermopsin-producer). While biomass additions supplied nutrients to the soil, spinach showed increased sensitivity to microcystins and anatoxin-a, with significantly reduced growth. Overall, mineral concentrations in plant tissues did not increase; most macro- and micronutrients declined, particularly in spinach shoots and radish roots (p ≥ 0.05). Vitamin C content also decreased in most treatments, except in plants treated with the non-cylindrospermopsin-producing R. raciborskii strain, where a significant increase was observed (p ≥ 0.05). Toxic biomass amendments led to the uptake of microcystins-LR and cylindrospermopsin in spinach, and cylindrospermopsin in radish, with cylindrospermopsin levels in spinach exceeding Word Health Organization's tolerable daily intake. These findings underscore the need for a previous detailed characterization of both nutrients and toxins in cyanobacterial biomass to ensure its safe and effective agricultural use, maximizing benefits while protecting food safety.eng
dc.description.sponsorshipCEECIND/03767/2018
dc.identifier.citationMassa, A., Martins, D., Azevedo, J., Prieto, A. I., Camean, A. M., Diez-Quijada, L., Jos, A., Reimão, M., Azevedo, R., Pinto, E., Almeida, A., Vasconcelos, V., Campos, A., & Freitas, M. (2025). Sustainable agriculture with cyanobacterial biomass: Soil experiments on spinach and radish plants. Science of The Total Environment, 1005, 180819. https://doi.org/10.1016/j.scitotenv.2025.180819
dc.identifier.doi10.1016/j.scitotenv.2025.180819
dc.identifier.eissn1879-1026
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.22/32473
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationUIDB/04423/2020, UIDP/04423/2020; 2023.00624.BDANA
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0048969725024593
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAnatoxin-a
dc.subjectCyanobacterial biomass
dc.subjectCylindrospermopsin
dc.subjectMicrocystins
dc.subjectRaphanus sativus
dc.subjectSpinacia oleracea
dc.titleSustainable agriculture with cyanobacterial biomass: Soil experiments on spinach and radish plantseng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.titleScience of the Total Environment
oaire.citation.volume1005
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameREIMÃO BORGES LOPES DA SILVA
person.givenNameMARIANA
person.identifier.ciencia-id3F13-ACA3-F5F8
person.identifier.orcid0009-0001-6119-4991
relation.isAuthorOfPublication65dc17be-3d3e-4485-928d-b99776e80e14
relation.isAuthorOfPublication.latestForDiscovery65dc17be-3d3e-4485-928d-b99776e80e14

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