Phytoremediation using microbially mediated metal accumulation in Sorghum bicolor.
Environ Sci Pollut Res Int
; 22(24): 19408-16, 2015 Dec.
Article
en En
| MEDLINE
| ID: mdl-25874434
Reclaiming land that has been anthropogenically contaminated with multiple heavy metal elements, e.g., during mining operations, is a growing challenge worldwide. The use of phytoremediation has been discussed with varying success. Here, we show that a careful examination of options of microbial determination of plant performance is a key element in providing a multielement remediation option for such landscapes. We used both (a) mycorrhiza with Rhizophagus irregularis and (b) bacterial amendments with Streptomyces acidiscabies E13 and Streptomyces tendae F4 to mediate plant-promoting and metal-accumulating properties to Sorghum bicolor. In pot experiments, the effects on plant growth and metal uptake were scored, and in a field trial at a former uranium leaching heap site near Ronneburg, Germany, we could show the efficacy under field conditions. Different metals could be extracted at the same time, with varying microbial inoculation and soil amendment scenarios possible when a certain metal is the focus of interest. Especially, manganese was extracted at very high levels which might be useful even for phytomining approaches.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Contaminantes del Suelo
/
Bacterias
/
Metales Pesados
/
Micorrizas
/
Sorghum
/
Restauración y Remediación Ambiental
Tipo de estudio:
Evaluation_studies
País/Región como asunto:
Europa
Idioma:
En
Revista:
Environ Sci Pollut Res Int
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Alemania