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Contributions of TOXICROP project for the assessment of the impacts of toxic cyanobacteria in agriculture †

dc.contributor.authorCampos, Alexandre
dc.contributor.authorFreitas, Marisa
dc.contributor.authorOudra, Brahim
dc.contributor.authorVasconcelos, Vítor
dc.date.accessioned2023-09-07T15:57:34Z
dc.date.available2023-09-07T15:57:34Z
dc.date.issued2022-07-22
dc.description.abstractWater contaminated with microcystins (MCs) or other cyanotoxins is recurrently used in agriculture and for crop irrigation. Several deleterious effects of MCs in plants that may impair crop productivity, including a decrease in growth and tissue necrosis, as well as an inhibition of photosynthesis and metabolic changes, have been reported. Studies also revealed a significant accumulation of MCs in edible tissues and plant organs, which raise concerns related to food safety. The European project TOXICROP precisely tackles this environmental problem. The main aims of the project are to map agricultural risk areas of cyanotoxin occurrence, to assess the fate of cyanotoxins in crops, and evaluate the impacts of using low-quality water for crop irrigation. The project also develops research on water remediation, exploring nature-based technologies. Here, we review part of the research carried out in the project, concerning the toxicity of cyanotoxins in crops. The research from TOXICROP Consortium has revealed for instance that adult strawberry or faba bean plants are susceptible to moderate concentrations of MCs (10 to 20 µg MCs/L). Furthermore, experiments with faba bean and common wheat grown in sterile (microorganism-free) and non-sterile (microorganism-rich) soil, watered with 100 μg MCs/L, revealed that native rhizospheric microbiota play an important role in the mitigation of the phytotoxic impact of MCs on plant growth, reducing toxin accumulation in both soils and plant tissues. Our studies also revealed that leaf vegetables, such as lettuce and spinach, growing in hydroponics are more susceptible to MCs than to the toxin, cylindrospermopsin (CYN). The lowest toxin concentrations affecting spinach and lettuce growth were 5 + 5 and 25 + 25 µg/L CYN/MC mixtures, respectively. The results also reveal that the accumulation of MCs and CYN in plants depends on the conditions in which plants grow and concentrations of toxins in the irrigation water. In some cases, MCs are accumulated in plant tissues and exceed the tolerable daily intake proposed by the World Health Organization. We highlight the importance and contributions of this research to the definition and implementation of regulatory limits for cyanotoxins in irrigation waters.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCampos, A., Freitas, M., Oudra, B., & Vasconcelos, V. (2022). Contributions of TOXICROP Project for the Assessment of the Impacts of Toxic Cyanobacteria in Agriculture. The 7th Iberian Congress on Cyanotoxins/3rd Iberoamerican Congress on Cyanotoxins. https://doi.org/10.3390/blsf2022014027pt_PT
dc.identifier.doi10.3390/blsf2022014027pt_PT
dc.identifier.eissn2673-9976
dc.identifier.urihttp://hdl.handle.net/10400.22/23478
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2673-9976/14/1/27pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectToxic cyanobacteriapt_PT
dc.subjectCyanotoxinspt_PT
dc.subjectWater qualitypt_PT
dc.subjectAlquevapt_PT
dc.subjectCrop irrigationpt_PT
dc.titleContributions of TOXICROP project for the assessment of the impacts of toxic cyanobacteria in agriculture †pt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPage2pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleBiology and Life Sciences Forumpt_PT
oaire.citation.volume14(1)pt_PT
person.familyNameFreitas
person.givenNameMarisa
person.identifier.ciencia-id131C-AD64-7E5F
person.identifier.orcid0000-0003-1886-4942
person.identifier.scopus-author-id7102366695
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicationee4b4693-5911-46e5-9247-129bafa5a864
relation.isAuthorOfPublication.latestForDiscoveryee4b4693-5911-46e5-9247-129bafa5a864

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