Evaluation of the rhizospheric microbiome of the native colonizer Piptatherum miliaceum in semiarid mine tailings
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Conesa Alcaraz, Héctor Miguel; Párraga Aguado, Isabel María; Jiménez Cárceles, Francisco José; Risueño García, YolandaÁrea de conocimiento
Ciencia de los Materiales e Ingeniería Metalúrgica; Tecnologías del Medio AmbientePatrocinadores
Grant CTM2017-82264-R funded by MCIN/AEI/10.13039/501100011033 and ERDF “A way of making Europe”. We also thank Mr Francisco Crispín Fuentes Narváez for facilitating the access to the sampling area. Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. Financial support for this research was provided by FEDER and the Ministerio de Ciencia e Innovación of Spain (Project CTM2017-82264-R).Realizado en/con
Universidad Politécnica de CartagenaFecha de publicación
2022-09-08Editorial
SPRINGERCita bibliográfica
Conesa, H.M., Párraga-Aguado, I., Jiménez-Cárceles, F.J. et al. Evaluation of the rhizospheric microbiome of the native colonizer Piptatherum miliaceum in semiarid mine tailings. Environ Geochem Health (2022). https://doi.org/10.1007/s10653-022-01357-yRevisión por pares
SIPalabras clave
Mining contaminationPhytostabilization
Semiarid climate
Rhizosphere
Metals
Resumen
The study of the rhizospheric microbiome in native plants should be a prerequisite before carrying out the phytomanagement of mine tailings. The goal of this work was to evaluate the rhizospheric microbiome of Piptatherum miliaceum in semiarid mine tailings. A comprehensive edaphic characterization was performed including the description of soil microbial composition in the rhizosphere of P. miliaceum growing at a mine tailings pile and at a control site. Plant nutritional and isotopic compositions were also determined. Neutral pH of the tailings (7.3) determined low metal extractability in 0.01 M CaCl2 (e.g. < 1 mg/kg for Zn). In spite of the contrasting edaphic fertility conditions of both sites, N (~ 15 g kg−1) and P (~ 400 mg kg−1) leaf concentrations were similar. The lower δ15N at the tailings plants (− 4.50‰) compared to the control (6.42‰) indicated greater efficiency of P. miliaceum for uptaking N under the low fertility conditions of the tailings (0.1% total soil nitrogen). The ...
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