Isolamento e seleção de micro-organismos resistentes e capazes de volatilizar mercúrio
Fecha
2011Autor
Otro título
Isolation and selection of microorganisms resistant and able to volatilize mercury
Materia
Abstract
Mercury (Hg) occurs in the environment as a natural and anthropogenic element, and through the years the accumulation of mercury has affected the integrity of ecosystems and human health. This study presents a screening of microorganisms resistant to organic and inorganic mercury, the determination of the minimum inhibitory concentration of Hg, the estimation of the mercury volatilization by selected microorganisms and the dynamics of volatilization. Eight Gram-negative bacteria resistant to hi ...
Mercury (Hg) occurs in the environment as a natural and anthropogenic element, and through the years the accumulation of mercury has affected the integrity of ecosystems and human health. This study presents a screening of microorganisms resistant to organic and inorganic mercury, the determination of the minimum inhibitory concentration of Hg, the estimation of the mercury volatilization by selected microorganisms and the dynamics of volatilization. Eight Gram-negative bacteria resistant to high concentrations of mercury (60 to 210 mg L-1) were selected, and these isolates showed ability to volatilize the metal. The dynamics of the volatilization of the Proteus mirabilis M50C demonstrated that in only 4 h of incubation it was possible to volatilize 72% of the mercury present in the culture. The results showed promising application for bioremediation strategies. ...
En
Química nova. São Paulo. Vol. 34, n. 2 ( 2011), p. 232-236
Origen
Nacional
Colecciones
-
Artículos de Periódicos (39774)Ciencias Agrícolas (3946)
-
Artículos de Periódicos (39774)Ciencias Biologicas (3109)
Este ítem está licenciado en la Creative Commons License