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Type: Artigo
Title: Metal accumulation by jatropha curcas l. adult plants grown on heavy metal-contaminated soil
Author: Martín, Juan Francisco García
Caro, María del Carmen González
Barrera, María del Carmen López
García, Miguel Torres
Barbin, Douglas
Mateos, Paloma Álvarez
Abstract: atropha curcas has the ability to phytoextract high amounts of heavy metals during its first months just after seeding. Notwithstanding, there is scarce information about metal uptake by adult J. curcas plants. To shed light on this issue, 4-year-old J. curcas L. plants were planted in a soil mixture of peat moss and mining soil (high metals content), and the biomass growth and metal absorption during 90 days were compared with those of plants growing in peat moss. The main metal found in the mining soil was Fe (31985 mg kg−1) along with high amounts of As (23717 mg kg−1). After the 90-day phytoremediation, the plant removed 29% of Fe and 44% of As from the soil mixture. Results revealed that J. curcas L. translocated high amounts of metals to its aerial parts, so that translocation factors were much higher than 1. Because of the high translocation and bioaccumulation factors obtained, J. curcas L. can be regarded as a hyperaccumulator plant. Despite the great capacity of J. curcas L. to phytoremediate heavy-metal-contaminated soils, the main drawback is the subsequent handling of the metal-contaminated biomass, although some potential applications have been recently highlighted for this biomass
Subject: Metais pesados
Country: Suíça
Editor: MDPI
Rights: Aberto
Identifier DOI: 10.3390/plants9040418
Date Issue: 2020
Appears in Collections:FEA - Artigos e Outros Documentos

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