نتایج جستجو برای: histoplasma capsulatum

تعداد نتایج: 1453  

Journal: :American Journal of Public Health and the Nations Health 1953

1998
JON P. WOODS ELIZABETH L. HEINECKE WILLIAM E. GOLDMAN

We developed an efficient electrotransformation system for the pathogenic fungus Histoplasma capsulatum and used it to examine the effects of features of the transforming DNA on transformation efficiency and fate of the transforming DNA and to demonstrate fungal expression of two recombinant Escherichia coli genes, hph and lacZ. Linearized DNA and plasmids containing Histoplasma telomeric seque...

2011
N. Zöllner

E. Buchborn (München) • H J . Dengler (Bonn) • V. Diehl (Köln) W. Gerok (Freiburg) • H. Goebell (Essen) • R. Gross (Köln) H. Jahrmärker (München) • H. Kaess (München) • R Krück (Bonn) W. Kubier (Heidelberg) • H.-G. Lasch (Gießen) • R Loogen (Düsseldorf) • W. Lorenz (Marburg) • RA. Miescher (Genf) • G. Nagel (Göttingen) • G.A. Neuhaus (Berlin) • G. Paumgartner (München) W. Reutter (Berlin) • G. ...

Journal: :Infection and immunity 2002
Atanas Ignatov Elizabeth J Keath

A gel shift assay was optimized to detect several general DNA binding proteins from Histoplasma capsulatum strain G217B. The electrophoretic mobility shift assay (EMSA) technique also detected protein(s) recognizing a pyrimidine-rich motif found in several Histoplasma promoters. Establishment of EMSA conditions provides an important framework to evaluate regulation of homeostatic or phase-speci...

Journal: :Memorias do Instituto Oswaldo Cruz 2010
Daniel A Estrada-Bárcenas José G Palacios-Vargas Edith Estrada-Venegas Pavel B Klimov Alejandro Martínez-Mena Maria Lucia Taylor

Mites and the mammal pathogenic fungus Histoplasma capsulatum are the major components of bat guano microbiota. Interactions between mites and H. capsulatum were evaluated under laboratory conditions. Acarid mites, mainly Sancassania sp., were the most abundant microarthropod in the sampled guano of the Mexican bat Tadarida brasiliensis mexicana and, based on its morphology, Sancassania sp. was...

Journal: :Applied and environmental microbiology 1981
W R Burt A L Underwood G L Appleton

Growth factor(s) present in a spent liquid medium after culture of the yeast form of Histoplasma capsulatum enhanced both yeast and mycelial growth of nine isolates tested. Hydroxamic acid extracted from the culture fluid displayed growth factor activity.

Journal: :Journal of bacteriology 1979
B Maresca A M Lambowitz G S Kobayashi G Medoff

Respiration in the yeast and mycelial phases of Histoplasma capsulatum proceeds via a cytochrome system and an alternate oxidase, both present constitutively. The mycelial cytochrome system is distinguished by an additional partial shunt around the antimycin-sensitive site.

Journal: :Antimicrobial agents and chemotherapy 2011
Rossana de Aguiar Cordeiro Francisca Jakelyne de Farias Marques Raimunda Sâmia Nogueira Brilhante Kylvia Rocha de Castro E Silva Charles Ielpo Mourão Erica Pacheco Caetano Maria Auxiliadora Bezerra Fechine Joyce Fonteles Ribeiro Débora de Souza Collares Maia Castelo-Branco Rita Amanda Chaves de Lima Jacó Ricarte Lima Mesquita Andre Jalles Monteiro Francisco Airton Castro Rocha Marcos Fábio Gadelha Rocha José Júlio Costa Sidrim

This study evaluated in vitro interactions of antituberculosis drugs and triazoles against Histoplasma capsulatum. Nine drug combinations, each including an antituberculosis drug (isoniazid, pyrazinamide, or ethambutol) plus a triazole (itraconazole, fluconazole, or voriconazole), were tested against both growth forms of H. capsulatum. Stronger synergistic interactions were seen in isoniazid or...

Journal: :Journal of clinical microbiology 1999
T Kasuga J W Taylor T J White

The phylogeny of 46 geographically diverse Histoplasma capsulatum isolates representing the three varieties capsulatum, duboisii, and farciminosum was evaluated using partial DNA sequences of four protein coding genes. Parsimony and distance analysis of the separate genes were generally congruent and analysis of the combined data identified six clades: (i) class 1 North American H. capsulatum v...

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