Artículo
Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil
Autor/es | García-Martín, Juan Francisco
González Caro, María del Carmen López Barrera, María del Carmen Torres-García, Miguel Barbin, Douglas Álvarez-Mateos, María Paloma |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Química Universidad de Sevilla. Departamento de Ingeniería Energética |
Fecha de publicación | 2020 |
Fecha de depósito | 2020-04-03 |
Resumen | Jatropha 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 ... Jatropha 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. |
Agencias financiadoras | Universidad de Sevilla |
Identificador del proyecto | VIPPIT-2019-I.5 |
Cita | García-Martín, J.F., González Caro, M.d.C., López Barrera, M.d.C., Torres-García, M., Barbin, D. y Álvarez-Mateos, M.P. (2020). Metal Accumulation by Jatropha curcas L. Adult Plants Grown on Heavy Metal-Contaminated Soil. Plants, 9 (4), 1-12. |
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