Mitigating arsenic contamination in rice plants with an aquatic fern, Marsilea minuta.
Environ Monit Assess
; 189(11): 550, 2017 Oct 10.
Article
em En
| MEDLINE
| ID: mdl-29018967
ABSTRACT
Dangers of arsenic contamination are well known in human civilization. The threat increases when arsenic is accumulated in food and livestock through irrigated crops or animal food. Hence, it is important to mitigate the effects of arsenic as much as possible. This paper discusses a process for reducing the level of arsenic in different parts of rice plants with an aquatic fern, Marsilea minuta L. A pot experiment was done to study the possibility of using Marsilea minuta as a phytoremediator of arsenic. Rice and Marsilea minuta were allowed to grow together in soils. As a control, Marsilea minuta was also cultured alone in the presence and absence of arsenic (applied at 1 mg/L as irrigation water). We did not find any significant change in the growth of rice due to the association of Marsilea minuta, though it showed a reduction of approximately 58.64% arsenic accumulation in the roots of rice grown with the association of fern compared to that grown without fern. We measured a bioaccumulation factor (BF) of > 5.34, indicating that Marsilea minuta could be a good phytoremediator of arsenic in rice fields.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Arsênio
/
Poluentes do Solo
/
Poluentes Químicos da Água
/
Biodegradação Ambiental
/
Gleiquênias
/
Marsileaceae
Limite:
Animals
Idioma:
En
Revista:
Environ Monit Assess
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Bangladesh