An alternative risk assessment framework for tropical soil multi-metal contamination using arbuscular mycorrhizal fungi

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Autor(es): dc.creatorKlauberg-Filho, Osmar-
Autor(es): dc.creatorLunardi, Eduardo Oliveira da Silva-
Autor(es): dc.creatorOliveira Filho, Luís Carlos Iuñes-
Autor(es): dc.creatorMoreira, Fatima Maria de Souza-
Autor(es): dc.creatorSiqueira, José Oswaldo-
Data de aceite: dc.date.accessioned2026-02-09T11:22:55Z-
Data de disponibilização: dc.date.available2026-02-09T11:22:55Z-
Data de envio: dc.date.issued2023-05-18-
Data de envio: dc.date.issued2023-05-18-
Data de envio: dc.date.issued2023-05-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/56833-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0048969723009890-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1139693-
Descrição: dc.descriptionArbuscular mycorrhizal fungi (AMF) are a key group of soil organisms involved in several ecosystem services, but they had not been explored in retrospective ecological risk assessment (ERA) schemes, partially due to a lack of experimental protocols. We aimed to perform a site-specific test to assess the effects of multiple metal contaminated soil (Zn, Cu, Cd, and Pb) on several ecotypes of AMF and evaluate the conceptual fitness of the performed AMF test to include in the TRIAD approach of ERA schemes. The results demonstrated that increasing metal contaminated soil proportions that inhibited 50 % (IC50) of spore germination varied from 28 to >80. Ecotypes such as Claroideoglomus etunicatum (IC50 > 80) and Racocetra gregaria (IC50 > 80) experienced 50 % reduction in spore germination at metals concentrations of 10,776.3 for Zn, 1015.2 Cu, 65.5 Cd, 140.2 mg dm−3 Pb, that are 3 times higher than those for Acaulospora mellea CMM101 (IC50 28 [16.2–39.8]) (3441.7 Zn, 333.9 Cu, 17.8 Cd, 56.5 mg dm−3 Pb). In the evaluation of the suitability of the AMF ecotoxicological test to ERA, both spore germination and germinative tube growth were best evaluated and thus suitable in the following descending order: Tier III, Tier II, and Tier I. Variable effects of multiple-metal contamination on the ecotypes indicates how AMF community is affected in its pre-symbiotic structures. The ecotoxicological test allowed the selection of two species with the greatest sensitivity (Ambispora appendicula and Rhizophagus clarus CMM103) to the metal matrix, with the potential to best fit ERA objectives. The site-specific ecotoxicological test with AMF ex-situ proved adequate as an alternative test for Tiers II and III of TRIAD ERA schemes for metal contaminated areas. Data generated through test results, such as the inhibition concentrations (ICs), could be incorporated into ERAs risk indexes, increasing its ecological relevance, and reducing overall uncertainties.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceScience of The Total Environment-
Palavras-chave: dc.subjectArbuscular mycorrhizal fungi species-
Palavras-chave: dc.subjectSpore germination-
Palavras-chave: dc.subjectGerminative tube growth-
Palavras-chave: dc.subjectMultiple metal contamination-
Palavras-chave: dc.subjectEcological risk assessment-
Título: dc.titleAn alternative risk assessment framework for tropical soil multi-metal contamination using arbuscular mycorrhizal fungi-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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