Browsing by Author "Zaldívar San Román, María Mercedes"
Now showing items 1-18 of 18
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(University of Salerno, 2006)The antimicrobial activity of the resinous exudate from the aerial part of Malesherbia auristipulata showed an active mixture against Gram (+) bacteria: S.aureus, B. subtilis and M. flavus and less active against Gram (-) ...
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(VERLAG Z NATURFORSCH, 2008-07)Dunalia sphiosa, a plant used in folk medicine for toothaches, breathing problems and cleansing wounds. was found active as antimicrobial and antioxidant. A new (E)-aurone rutinoside (dunaurone) has been isolated from the ...
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(Universidad de Chile, 2010)Diversas investigaciones han mostrado que cultivos microbianos provenientes de una cepa pura pueden dar paso gradualmente a la emergencia y mantención de diversidad genética en condiciones de privación de recursos. En fase ...
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(GEORG THIEME VERLAG KG, 2002-04)A biologically monitored fractionation of the resinous exudate of Fabiana densa Remy var. ramulosa Wedd. led to the isolation of the two new diterpenes: ent-beyer-15-en-18-O-succinate and ent-beyer-15-en-18-O-oxalate as ...
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(SWETS ZEITLINGER PUBLISHERS, 1997-12)Antimicrobial activity of leaf extracts of Psoralea glandulosa L. (Papilionaceae) is reported This study was carried out on the extracts and on the plant's most abundant metabolite, bakuchiol. Antimicrobial activity against ...
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(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 ...
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(ELSEVIER, 2006-10-11)The folk medicine employs Schinus polygamus to treat arthritic pain and cleansing of wounds. As no reports of pharmacological studies supporting its anti-inflammatory and analgesic properties, extracts of increasing polarity ...
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(Universidad de Chile, 2011)En organismos eucariontes, el inicio de la síntesis de proteínas comienza con el reclutamiento de la subunidad 40S del ribosoma al mRNA. Sin embargo, dependiendo de cómo se efectúe este reclutamiento, el inicio de la ...
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(Universidad de ChileUniversidad de Chile. Programa Cybertesis, 2004)Lophopappus tarapacanus (Phil.) Cabr,. Asteraceae, nombre vulgar “cari, moñe y tola”, es utilizada por la medicina folclórica para dolores estomacales y lastimaduras del ganado. Es una planta que crece en la Provincia ...
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(SOC GENERAL MICROBIOLOGYJournal Of Medical Microbiology, vol. 57 Issue 8 p. 938-946 AUG 2008, 2008-08)The amount of lipopolysaccharide (LPS) O antigen (OAg) and its chain length distribution are important factors that protect bacteria from serum complement. Salmonella enterica serovar Typhi produces LPS with long chain ...
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(AMER SOC MICROBIOLOGY, 2012-02)Salmonella enterica serovar Enteritidis causes a systemic, typhoid-like infection in newly hatched poultry and mice. In the present study, a library of 54,000 transposon mutants of S. Enteritidis phage type 4 (PT4) strain ...
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(GEORG THIEME VERLAG KG, 2002-01)Psila boliviensis (Wedd.) Cabr. yielded a new phenylpropanoid, named methyl psilalate. The structure was established by means of standard spectroscopic techniques. The microbiological evaluation of the compound revealed ...
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(SOC GENERAL MICROBIOLOGY, 2002-12)The authors previously reported increased expression of the Salmonella enterica serovar Typhi (S. typhi) rfaH gene when the bacterial cells reach stationary phase. In this study, using a lacZ fusion to the rfaH promoter ...
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(SOC GENERAL MICROBIOLOGY, 2007-10)Shigella flexneri 2a 2457T produces lipopolysaccharide (LIPS) with two O-antigen (OAg) chain lengths: a short (S-OAg) controlled by WzzB and a very long (VL-OAg) determined by Wzz(pHS-2). This study demonstrates that the ...
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(AMER SOC MICROBIOLOGY, 2006-03)Salmonella enterica serovar Typhi causes typhoid fever in humans. Central to the pathogenicity of serovar Typhi is its capacity to invade intestinal epithelial cells. The role of lipopolysaccharide (LPS) in the invasion ...
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Screening fitoquímico, antimicrobiano y antioxidante de plantas pre-andinas y del altiplano chileno (Universidad de ChileCyberDocs, 2009)El altiplano o puna por sus características ambientales, es una región natural única en América del Sur, abarca el centro y sur del Perú, el norte de Chile, parte de Bolivia, y el noreste de Argentina. En el altiplano ...
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(2010-04)Salmonella enterica serovar Enteritidis has emerged as a major health problem worldwide in the last few decades. DNA loci unique to S. Enteritidis can provide markers for detection of this pathogen and may reveal pathogenic ...
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(Elsevier Sciences B. V., 2001)We have cloned and sequenced the rfaH gene from Salmonella enterica serovar Typhi Strain Ty2. The gene shoed a high degree of similirity to the rfaH genes from Escherichia coli K-12 and S. enterica serovar Typhimurium. A ...
