Browsing Artículos (Microbiología) by Issue Date
Now showing items 1-20 of 141
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Division macronucléaire du cilié laurentiella acuminata [Article]
(Editions du C.N.R.S., 1982)The distribution of DNA in the macronuclear division of the Hypotrich ciliate Laurentiella acuminata has been studied by cytophotometric techniques. The mean degree of inequality found in the distribution of DNA between ...
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Genetic and biochemical study of threonine-overproducing mutants of Saccharomyces cerevisiae [Article]
(1982)Three threonine-overproducing mutants were obtained as prototrophic revertants of a hom3 mutant strain of Saccharomyces cerevisiae. The gene HOM3 codes for aspartokinase (aspartate kinase; EC 2.7.2.4), the first enzyme of ...
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Complex Carbohydrates in the Cyst Wall of Histriculus similis [Article]
(Society for Genral Microbiology, 1983)The ultrastructure of the cyst wall has been studied in severa! hypotrichous ciliates. In Oxytrichafallax (Grimes, 1973),Pleurotricha sp. (Matsusaka, 1976), Stylonychia mytilus (Walker et al., 1975), Gastrostyla steinii ...
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Étude ultrastructurale de la morphogenese corticale. De régénération chez le cilié hypotriche histriculus similis [Article]
(Éditions du Centre national de la recherche scientifique, 1984)La régénération chez Histriculus similis a été étudiée en microscopie électronique. Les premiers signes du procesus de régénération s'observenl une heure apres le traitement par l'urée. Pendant la morphogenese corticale ...
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The cyst of urostyla grandis (hypotrichida : Urostylidae) : ultrastructure and evolutionary implications [Article]
(Éditions du Centre national de la recherche scientifique, 1985)L'examen , en microscopie électronique, du kyste d'Uros1y la grandis a révélé que sa paroi se compose de trois couches : un exokyste fibrillaire, un endokyste a structure homogéne et une couche granulaire avec une structure ...
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Accumulation of Poly(beta-Hydroxybutyrate) by Halobacteria [Article]
(American Society for Microbiology, 1986)Some species of extremely halophilic archaebacteria, Halobacteriaceae, have been shown to accumulate large amounts of poly(P-hydroxybutyrate) under conditions of nitrogen limitation and abundant carbon source. The production ...
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Uptake and intracellular activity of an optically active ofloxacin isomer in human neutrophils and tissue culture cells [Article]
(American Society for Microbiology, 1990-01-01)The penetration of an optically active ofloxacin isomer [(-)-ofloxacin] into human neutrophils and different tissue culture cells (HEp-2, McCoy, MDCK, and Vero) was studied and compared with that of ofloxacin by a fluorometric ...
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A broad molecular phylogeny of ciliates: Identification of major evolutionary trends and radiations within the phylum [Article]
(National Academy of Sciences, 1992)The cellular architecture of ciliates is one of the most complex known within eukaryotes. Detailed systematic schemes have thus been constructed through extensive comparative morphological and ultrastructural analysis of ...
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Uptake and intracellular activity of sparfloxacin in human polymorphonuclear leukocytes and tissue culture cells [Article]
(American Society for Microbiology, 1992-01-01)The penetration of sparfloxacin into human neutrophils (PMN) and different tissue culture cells (HEp-2 and McCoy) was evaluated. The cellular to extracellular concentration ratios (C/E) of sparfloxacin were always higher ...
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Índices clínicos y microbiología de la enfermedad periodontal: su valor pronóstico [Article]
(Ergon, 1993) -
Uptake and intracellular activity of fluconazole in human polymorphonuclear leukocytes [Article]
(American Society for Microbiology, 1993-01-01)The penetration of fluconazole into human polymorphonuclear leukocytes (PMNs) and tissue culture epithelial cells (McCoy) was evaluated. At different extracellular concentrations (0.5 to 10 mg/liter), fluconazole reached ...
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Cortical development associated with conjugation of Paramecium [Article]
(Company of Biologists Ltd, 1993-03)The cortical cytoskeleton of Paramecium is characterized by a complex, polarized and asymmetrical organization. In order to analyse the cortical development of Paramecium tetraurelia during the sexual process of conjugation, ...
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A peripheral protein associated with the cis-Golgi network redistributes in the intermediate compartment upon brefeldin A treatment [Article]
(Rockefeller University Press, 1994)Human autoantibodies offer unique tools for the study of cellular constituents since they usually recognize highly conserved components, the most difficult to detect due to their low immunogenicity. The serum from a patient ...
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Intracellular penetration and activity of BAY Y 3118 in human polymorphonuclear leukocytes [Article]
(American Society for Microbiology, 1994-01-01)The penetration of a new quinolone (BAY Y 3118) into human polymorphonuclear leukocytes (PMNs) was evaluated by a fluorometric assay. The cellular concentration-to-extracellular concentration (C/E) ratio was higher than ...
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Estudio longitudinal (2 años) de la periodontitis crónica del adulto: respuesta clínica y microbiológica [Article]
(Ergon, 1995)Se realiza un seguimiento clínico y microbiológico durante dos años de 20 pacientes (2228 zonas) con periodontitis crónica del adulto evaluando la respuesta al raspado y alisado radicular. Se observa una recuperación de ...
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Phenotypic characteristics of 31 strains of Corynebacterium striatum isolated from clinical samples [Article]
(American Society for Microbiology, 1995)During a 34-month period (January 1991 to October 1993), 31 Corynebacterium striatum strains recovered from clinical samples from 24 patients were characterized. Twenty (64%) strains were isolated from wound exudates, 5 ...
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Comparison of E-test with broth microdilution and disk diffusion for susceptibility testing of coryneform bacteria [Article]
(American Society for Microbiology, 1995)The susceptibilities of 135 coryneform bacteria isolated from clinical samples to ampicillin (AMP), cephalothin (CR), cefoxitin (FOX), cefotaxime (CTX), erythromycin (E), ciprofioxacin (CIP), tetracycline (TE), amikacin ...
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Comparison of broth microdilution and E-test for susceptibility testing of Neisseria meningitidis [Article]
(American Society for Microbiology, 1996)The susceptibilities of 54 clinical isolates of Neisseria meningitidis to penicillin, cefotaxime, ceftriaxone, cefepime, imipenem, ciprofloxacin, chloramphenicol, and rifampin were determined by the microdilution method ...
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In vivo selection of porin-deficient mutants of Klebsiella pneumoniae with increased resistance to cefoxitin and expanded-spectrum cephalosporins [Article]
(American Society for Microbiology, 1996-02-01)Four Klebsiella pneumoniae isolates (LB1, LB2, LB3, and LB4) with increased antimicrobial resistance were obtained from the same patient. The four isolates were indistinguishable in biotype, plasmid content, lipopolysaccharide, ...
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Antimicrobial susceptibility pattern of Corynebacterium striatum [Article]
(American Society for Microbiology, 1996-11-01)The in vitro activities of 16 antimicrobial agents against 86 strains of Corynebacterium striatum were evaluated by microdilution using cation- adjusted Mueller-Hinton broth. MICs at which 90% of strains were inhibited ...