[Organic mercury tolerance, absorption and transformation in Spartina plants].
Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao
; 30(5): 577-82, 2004 Oct.
Article
em Zh
| MEDLINE
| ID: mdl-15627713
ABSTRACT
Critical concentration of methylmercuric chloride (MeHgCl) in the nutrient solution to which Spartina plants are tolerant is 15 micromol/L, three times higher than that of tobacco plants. After being treated with methylmercuric chloride, total quantity of organic mercury within plants increased and that of nutrient solution decreased greatly so that total quantity of inorganic mercury rose. It is inferred that Spartina plants absorb organic mercury and partially transform organic into inorganic mercury, and then more inorganic mercury is accumulated in underground parts of plants. In addition, inorganic mercury derived from organic mercury moved to solution by diffusion and permeation. In this way, the features Spartina plants exhibit in mercury accumulation and transformation from organic to inorganic mercury are valuable for phytoremediation of environment pollution.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poaceae
/
Compostos de Metilmercúrio
Idioma:
Zh
Revista:
Zhi Wu Sheng Li Yu Fen Zi Sheng Wu Xue Xue Bao
Assunto da revista:
BIOLOGIA MOLECULAR
/
BOTANICA
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
China