Browsing by Author "XX598958"

Artículo

AHL communication is a widespread phenomenon in biomining bacteria and seems to be involved in mineral-adhesion ...

Ruiz, Lina María; Valenzuela, Susana; Castro, Matías; Gonzalez, Alex; Frezza, Marine; Soulère, Laurent; Rohwerder, Thore; Queneau, Yves; Doutheau, Alain; Sand, Wolfgang; Jerez Guevara, Carlos; Guiliani Guerin, Nicolás (ELSEVIER SCIENCE BV, 2008-11)

Biofilm development plays a pivotal role in the bioleaching process. Quorum sensing (QS) is recognized as one of the main regulatory ways of extracellular polymeric substances (EPS) production and biofilm formation in ...

Artículo

Biofilm formation by the acidophile bacterium acidithiobacillus thiooxidans involves c-di-GMP pathway and ...

Díaz Beneventi, Mauricio; Castro, Matías; Copaja Castillo, Sylvia; Guiliani Guerin, Nicolás (MDPI, 2018)

Acidophile bacteria belonging to the Acidithiobacillus genus are pivotal players for the bioleaching of metallic values such as copper. Cell adherence to ores and biofilm formation, mediated by the production of extracellular ...

Artículo

Bioinformatic Prediction of Gene Functions Regulated by Quorum Sensing in the Bioleaching Bacterium ...

Banderas, Álvaro; Guiliani Guerin, Nicolás (2013)

The biomining bacterium Acidithiobacillus ferrooxidans oxidizes sulfide ores and promotes metal solubilization. The efficiency of this process depends on the attachment of cells to surfaces, a process regulated by quorum ...

Tesis

Búsqueda del regulón "quorum sensing" de acidithiobacillus ferrooxidans mediante estudios proteómicos y ...

Gallardo Nelson, María José (Universidad de ChileCyberDocs, 2009)

Acidithiobacillus ferrooxidans es una de las principales bacterias ácidofilas y quimiolitoautotróficas involucradas en los procesos de biolixiviación. Esta bacteria Gramnegativa es capaz de oxidar tanto el ión ferroso ...

Artículo

Genomics, metagenomics and proteomics in biomining microorganisms

Valenzuela, Lissette; Chi, An; Beard, Simon; Orell, Alvaro; Guiliani Guerin, Nicolás; Shabanowitz, Jeff; Hunt, Donald F.; Jerez Guevara, Carlos (PERGAMON-ELSEVIER SCIENCE LTD, 2006-04)

The use of acidophilic, chemolithotrophic microorganisms capable of oxidizing iron and sulfur in industrial processes to recover metals from minerals containing copper, gold and uranium is a well established biotechnology ...

Artículo

Identification of differentially expressed genes in an industrial bioleaching heap processing low-grade ...

Galleguillos, Pedro; Remonsellez, Francisco; Galleguillos, Felipe; Guiliani Guerin, Nicolás; Castillo, Danny; Demergasso, Cecilia (ELSEVIER, 2008-11)

During the past few decades the microbial bioleaching of metallic sulphide ores has become a very important process utilized by the mining industry. The biodiversity studies of industrial systems have revealed the occurrence ...

Artículo

Synthetic homoserine lactone-derived sulfonylureas as inhibitors of Vibrio fischeri quorum sensing regulator

Frezza, Marine; Soulère, Laurent; Reverchon, Sylvie; Guiliani Guerin, Nicolás; Jerez Guevara, Carlos; Queneau, Yves; Doutheau, Alain (PERGAMON-ELSEVIER, 2008-04-01)

A series of 9 homoserine lactone-derived sulfonylureas substituted by an alkyl chain, some of them bearing a phenyl group at the extremity, have been prepared. All compounds were found to inhibit the action of 3-oxo-hexa ...

Artículo

The extremophile Acidithiobacillus ferrooxidans possesses a c-di-GMP signalling pathway that could play a ...

Ruiz, L. M.; Castro, M.; Barriga, A.; Jerez Guevara, Carlos; Guiliani Guerin, Nicolás (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 ...