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Toxic and non-toxic cyanobacterial biomass as a resource for sustainable agriculture: A lettuce cultivation experiment

2024-12-01Journal article Embargoed access
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dc.contributor.authorMassa, Anabella
dc.contributor.authorSantos, Érica
dc.contributor.authorMartins, Diogo
dc.contributor.authorAzevedo, Joana
dc.contributor.authorReimão, Mariana
dc.contributor.authorAlmeida, Agostinho
dc.contributor.authorAzevedo, Rui
dc.contributor.authorPinto, Edgar
dc.contributor.authorVasconcelos, Vítor
dc.contributor.authorCampos, Alexandre
dc.contributor.authorFreitas, Marisa
dc.date.accessioned2025-01-03T09:16:13Z
dc.date.embargo2025-12
dc.date.issued2024-12-01
dc.description.abstractCyanobacteria represent a promising resource for sustainable agriculture, as they have demonstrated the ability to restore soil fertility even after death and decay. However, several cyanobacteria can also release secondary metabolites, such as cyanotoxins, which may compromise the quality of agricultural products and pose a potential risk to human health. Depending on the concentration of exposure, few studies reported deleterious effects on plant species when irrigated with cylindrospermopsin (CYN) contaminated water, impairing plant growth and leading to food product contamination, while other studies show promoting effects on plant yield. To evaluate the potential of cyanobacterial biomass (cyanotoxin-containing or not) as a sustainable resource for soil amendment, biostimulants or fertilizers for lettuce cultivation, a study was carried out that consisted of the culture of lettuce plants under controlled conditions, in soil: (1) with no extra nutrient addition (control) and supplemented with 0.6 g of freeze-dried Raphidiopsis raciborskii biomass of (2) a non-CYN-producing strain, (3) a CYN-producing strain, and (4) the same CYN-producing strain pasteurized. Results showed no significant differences in photosystem II efficiency with the amendment addition. On the contrary, shoot fresh weight significantly increased in lettuce plants grown with the cyanobacterial biomass addition, especially in condition (3). In addition, there were significant differences in mineral concentrations in lettuce leaves after the cyanobacterial biomass addition, such as K, Na, Ca, P, Mg, Mn, Zn, Cu, Mo, and Co. CYN accumulation was detected under conditions (3) and (4), with concentrations observed in descending order from roots > soil > shoot. Nevertheless, the CYN concentration in edible tissues did not exceed the WHO-proposed tolerable daily intake of 0.03 μg/kg/day. These findings suggest that incorporating cyanobacterial biomass as a soil amendment, biostimulant or fertilizer for lettuce cultivation, even with trace amounts of CYN (1–40 μg/g), may enhance plant yield without leading to cyanotoxin accumulation in edible tissues above the WHO-recommended tolerable daily intake.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMassa, A., Santos, É., Martins, D., Azevedo, J., Reimão, M., Almeida, A., Azevedo, R., Pinto, E., Vasconcelos, V., Campos, A., & Freitas, M. (2024). Toxic and non-toxic cyanobacterial biomass as a resource for sustainable agriculture: A lettuce cultivation experiment. Environmental Research, 262, 119942. https://doi.org/10.1016/j.envres.2024.119942pt_PT
dc.identifier.doi10.1016/j.envres.2024.119942pt_PT
dc.identifier.eissn1096-0953
dc.identifier.issn0013-9351
dc.identifier.urihttp://hdl.handle.net/10400.22/26949
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationThis work received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska- Curie grant agreement No. 823860, and the Erasmus Plus Program for the Grant for a Master’s Degree study. Mariana Reim˜ao acknowledges Foundation for Science and Technology, Portugal, for the PhD Grant 2023.00624.BDANA.pt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0013935124018474?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectCyanobacterial biomasspt_PT
dc.subjectCylindrospermopsinpt_PT
dc.subjectLettucept_PT
dc.subjectSoil fertilizerpt_PT
dc.subjectSustainablept_PT
dc.titleToxic and non-toxic cyanobacterial biomass as a resource for sustainable agriculture: A lettuce cultivation experimentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleEnvironmental Researchpt_PT
oaire.citation.volume262, Part 2pt_PT
person.familyNameREIMÃO BORGES LOPES DA SILVA
person.familyNamePinto
person.familyNameFreitas
person.givenNameMARIANA
person.givenNameEdgar
person.givenNameMarisa
person.identifier.ciencia-id3F13-ACA3-F5F8
person.identifier.ciencia-id271F-B7DF-8FAB
person.identifier.ciencia-id131C-AD64-7E5F
person.identifier.orcid0009-0001-6119-4991
person.identifier.orcid0000-0002-8021-4783
person.identifier.orcid0000-0003-1886-4942
person.identifier.scopus-author-id7102366695
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication65dc17be-3d3e-4485-928d-b99776e80e14
relation.isAuthorOfPublicationeaf9fc86-1a1c-437f-adee-d28040aa7f2f
relation.isAuthorOfPublicationee4b4693-5911-46e5-9247-129bafa5a864
relation.isAuthorOfPublication.latestForDiscovery65dc17be-3d3e-4485-928d-b99776e80e14

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