Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/28953
Título : Phytoprotective effect of arbuscular mycorrhizal fungi species against arsenic toxicity in tropical leguminous species
Autor: Rangel, Wesley de Melo
Scnheider, Jerusa
Costa, Enio Tarso de Souza
Soares, Cláudio Roberto Fonsênca Souza
Guilherme, Luiz Roberto Guimarães
Moreira, Fátima Maria de Souza
Palavras-chave: Arbuscular mycorrhizal fungi
Soils - Arsenic contamination
Antioxidant enzymes
Fungos micorrízicos arbusculares
Solos - contaminação por arsênico
Enzimas antioxidantes
Publicador: Taylor & Francis
Data da publicação: 2014
Referência: RANGEL, W. de M. et al. Phytoprotective effect of arbuscular mycorrhizal fungi species against arsenic toxicity in tropical leguminous species. International Journal of Phytoremediation, Philadelphia, v. 16, n. 7-8, p. 840-858, 2014.
Abstract: Arbuscular mycorrhizal fungi (AMF) improve the tolerance of hosting plants to arsenic (As) in contaminated soils. This work assessed the phytoprotective effect of Glomus etunicatum, Acaulospora morrowiae, Gigaspora gigantea, and Acaulospora sp. on four leguminous species (Acacia mangium, Crotalaria juncea, Enterolobium contortisiliquum, and Stizolobium aterrimum) in an As-contaminated soil from a gold mining area. AMF root colonization, biomass production, As and P accumulation, as well as arsenic translocation index (TI) from roots to shoots were measured. The AMF phytoprotective effect was assessed by the P/As ratio and the activity of plant antioxidant enzymes. The AMF colonization ranged from 24 to 28%. In general, all leguminous species had low As TI when inoculated with AMF species. Inoculation of C. juncea with Acaulospora sp. improved significantly As accumulation in roots, and decreased the activity of ascorbate peroxidase (APX) and superoxide dismutase (SOD), highlighting its phytoprotective effect and the potential use of this symbiosis for phytoremediation of As-contaminated soils. However, S. aterrimum has also shown a potential for phytoremediation irrespectively of AMF inoculation. APX was a good indicator of the phytoprotective effect against As contamination in C. juncea and A. mangium. In general P/As ratio in shoots was the best indicator of the phytoprotective effect of all AMF species in all plant species.
URI: https://www.tandfonline.com/doi/abs/10.1080/15226514.2013.856852
http://repositorio.ufla.br/jspui/handle/1/28953
Idioma: en_US
Aparece nas coleções:DCS - Artigos publicados em periódicos

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