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Cooperative action of attached and planktonic cells during bioleaching of chalcopyrite with Sulfolobus metallicus at 70 degrees C

Gautier, V.;Escobar, B.;Vargas, T. (2008-11)

The catalytic influence of Sulfolobus metallicus in the bioleaching of chalcopyrite at 70 degrees C and pH 1.5 was studied in shake flask experiments. Leaching was conducted in an iron-free basal medium with a ....
Determination of molecular phylogenetics of Vibrio parahaemolyticus strains by multilocus sequence typing

González Escalona, Narjol;Martínez Urtaza, Jaime;Romero, Jaime;Espejo, Romilio T.;Jaykus, Lee-Ann;De Paola, Angelo (2008-04)

Vibrio parahaemolyticus is an important human pathogen whose transmission is associated with the consumption of contaminated seafood. There is a growing public health concern due to the emergence of a pandemic ....
Effect of regular ingestion of Saccharomyces boulardii plus inulin or Lactobacillus acidophilus LB in children colonized by Helicobacter pylori

Gotteland, Martín (2005-12)

Aim: To evaluate the effect of a probiotic, Lactobacillus acidophilus LB (LB), or a synbiotic, Saccharomyces boulardii plus inulin (SbI), on Helicobacter pylori (Hp) colonization in children. Subjects and metho....
Enhanced Diffusion due to Active Swimmers at a Solid Surface

Miño, Gastón;Mallouk, Thomas E.;Darnige, Thierry;Hoyos, Mauricio;Dauchet, Jeremy;Dunstan, Jocelyn;Soto, Rodrigo;Wang, Yang;Rousselet, Annie;Clement, Eric (2011-01-25)

We consider two systems of active swimmers moving close to a solid surface, one being a living population of wild-type E. coli and the other being an assembly of self-propelled Au-Pt rods. In both situations, w....
Modulation of Helicobacter pylori colonization with cranberry juice and Lactobacillus johnsonii La1 in children

Gotteland, Martín;Andrews, Mónica;Toledo, Marcela;Muñoz, Loreto;Cáceres, Paola;Anziani, Alyerina;Wittig Rovira, Emma;Speisky, Hernán;Salazar, Gabriela (2008-05)

Objective: Probiotics and cranberry have been shown to inhibit Helicobacter pylori in vitro owing to bacteriocin production and high levels of proanthocyanidins, iespectively. These effects have been confirmed ....
Molecular analysis of enrichment cultures of ammonia oxidizers from the Salar de Huasco, a high altitude saline wetland in northern Chile

Dorador, Cristina;Busekow, Annika;Vila, Irma;F. Imhoff, Johannes;Witzel, Karl-Paul (2008-05)

We analyzed enrichment cultures of ammonia-oxidizing bacteria (AOB) collected from different areas of Salar de Huasco, a high altitude, saline, pH-neutral water body in the Chilean Altiplano. Samples were inocu....
Polymorphism and gene conversion of the 16S rRNA genes in the multiple rRNA operons of Vibrio parahaemolyticus

González Escalona, Narjol;Romero, Jaime;Espejo, Romilio T. (2005-05-15)

The genome sequence of a strain of Vibrio parahaemolyticus holds 11 copies of rRNA operons (rrn) with identical 16S rRNA genes (rrs). Conversely, the species type strain contains two rrs classes differing in 10....
Quantitative reverse transcription polymerase chain reaction analysis of Vibrio cholerae cells entering the viable but non-culturable state and starvation in response to cold shock

González Escalona, Narjol;Fey, Axel;Hofle, Manfred G.;Espejo, Romilio T.;Guzmán, Carlos A. (2006-04)

We performed a comparative analysis of the Vibrio cholerae strain El Tor 3083 entering the viable but non-culturable (VBNC) state and starvation after incubation in artificial seawater (ASW) at 4 and 15 degrees....
Rapid and specific detection of Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans by PCR

Escobar, Blanca;Bustos, Karina;Morales, Gabriela;Salazar, Oriana (2008-06)

Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans are two of the most important bacteria in heap bioleaching processes of copper sulphide at common operating temperatures (18-24 degrees C). In this....
Second Acyl Homoserine Lactone Production System in the Extreme Acidophile Acidithiobacillus ferrooxidans

Rivas, Mariella;Seeger, Michael;Jedlicki C., Eugenia María;Holmes, David S. (2007-05)

The acidophilic proteobacterium Acidithiobacillus ferrooxidans is involved in the industrial biorecovery of copper. It is found in acidic environments in biofilms and is important in the biogeochemical cycling ....

Now showing items 1-10 of 10

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