Effect of rhizobacteria on arsenic uptake by macrophyte Eichhornia crassipes (Mart.) Solms.
Int J Phytoremediation
; 20(2): 114-120, 2018 Jan 28.
Article
en En
| MEDLINE
| ID: mdl-28613914
ABSTRACT
Wastewater flowing in streams and nallahs across India carries several trace metals, including metalloid arsenic (As), which are considered serious environmental contaminants due to their toxicity, and recalcitrant nature. In this study, we determined the phytoremediation of As by Eichhornia crassipes (Mart.) Solms either alone or in association with plant growth-promoting rhizobacteria. Pseudomonas and Azotobacter inoculation to E. crassipes resulted in enhanced As removal compared to uninoculated control. Co-inoculation with a consortium of Pseudomonas, Azotobacter, Azospirillum, Actinomyces, and Bacillus resulted in a higher As (p < 0.05) phytoaccumulation efficiency. P. aeruginosa strain jogii was found particularly effective in augmenting As removal by E. crassipes. Our findings indicate that the synergistic association of E. crassipes and various rhizobacteria is an effective strategy to enhance removal of As and thus may be utilized as an efficient biological alternative for the removal of this metalloid from wastewaters.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Arsénico
/
Contaminantes Químicos del Agua
/
Eichhornia
Idioma:
En
Año:
2018
Tipo del documento:
Article