Buscar
Mostrando ítems 11-20 de 966
The extremophile Acidithiobacillus ferrooxidans possesses a c-di-GMP signalling pathway that could play a significant role during bioleaching of minerals
(WILEY-BLACKWELL, 2012-02)
Aims: The primary goal of this study was to characterize the existence of a functional c-di-GMP pathway in the bioleaching bacterium Acidithiobacillus ferrooxidans. Methods and Results: A bioinformatic search revealed that ...
Phosphate-starvation induced changes in Thiobacillus ferrooxidans
(1993)
We have analysed the response of the acidophilic chemolithotroph Thiobacillus ferrooxidans to phosphate starvation. Cultivation of the bacteria in the absence of added phosphate induced a remarkable filamentation of the ...
Draft Genome Sequence of “Acidibacillus ferrooxidans” ITV01, a Novel Acidophilic Firmicute Isolated from a Chalcopyrite Mine Drainage Site in Brazil
(American Society for Microbiology, 2016)
Estudo da oxidação dos sulfetos sintéticos molibdenita (MoS2) e covelita (CuS) por Acidithiobacillus ferrooxidans via respirometria celular
(Sociedade Brasileira de Química, 2009-01-01)
This paper analyses the oxidation of covellite and molybdenite by Acidithiobacillus ferrooxidans strain LR using respirometric experiments. The results showed that both sulfides were oxidized by A. ferrooxidans, however, ...
Phosphate limitation affects global gene expression in thiobacillus ferrooxidans
(1992)
During some biogeochemical processes mediated by bacteria, essential nutrients such as phosphate can become limiting for the microorganisms, affecting their biological activity. We have analyzed changes in total protein ...
Short communication: Influence of lipopolysaccharides on the attachment of Thiobacillus ferrooxidans to minerals
(Kluwer Academic Publishers, 1997)
The loss of part of the lipopolysaccharides (LPS) of the outer membrane of T. ferrooxidans negatively influenced the attachment of the bacteria to minerals and the bioleaching process. LPS previously extracted from T. ...
Oxidation of H2S in acid solution by Thiobacillus ferrooxidans and Thiobacillus thiooxidans
(Elsevier B.V., 2001-10-01)
Qualitative and quantitative oxidation tests of H2S in acid solution were carried out using Thiobacillus ferrooxidans and Thiobacillus thiooxidans species, Experiments were performed using solutions of H2SO4 (pH 2.0) ...
A preliminary differential proteomic analysis of the periplasmic fraction in Acidithiobacillus ferrooxidans planktonic and attached cells exposed to chalcopyrite
(2009-12-28)
The Acidithiobacillus ferrooxidans periplasmic space is known to have proteins involved in the respiratory chains. There are no reports about the expression of the periplasmic proteins in A. ferrooxidans cells attached to ...
Factors affecting chromium(VI) reduction by Thiobacillus ferrooxidans
(Elsevier Science Sa, 2001-02)
The ability of Thiobacillus ferrooxidans cultures to reduce chromium(VI) to chromium(III) was evaluated under different conditions. In T. ferrooxidans cultures with sulphur as energy source, the capacity for chromium(VI) ...