Aspergillus
Mostrando 1-12 de 3366 artigos, teses e dissertações.
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1. New species of Aspergillus producing sterigmatocystin.
A number of species belonging to the genus Aspergillus were evaluated for their toxicity to ducklings and the ability to produce sterigmatocystin. Three new species capable of producing sterigmatocystin were found, namely, Aspergillus aurantio-brunneus, Aspergillus quadrilineatus, and Aspergillus ustus. All three were toxic to ducklings. The production of st
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2. Identification of Aspergillus fumigatus and Related Species by Nested PCR Targeting Ribosomal DNA Internal Transcribed Spacer Regions
Aspergillus fumigatus is the most common species that causes invasive aspergillosis. In order to identify A. fumigatus, partial ribosomal DNA (rDNA) from two to six strains of five different Aspergillus species was sequenced. By comparing sequence data from GenBank, we designed specific primer pairs targeting rDNA internal transcribed spacer (ITS) regions of
American Society for Microbiology.
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3. Atividade de óleos essenciais sobre espécies de Aspergillus spp. aflatoxigênicas isoladas de castanha do Brasil
Orientador: Marta Cristina Teixeira Duarte
Biblioteca Digital de Teses e Dissertações da Universidade Estadual de Campinas (UNICAMP). Publicado em: 2014
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4. Variability of Germinative Potential among Pathogenic Species of Aspergillus
The objective of our study was to evaluate parameters influencing the germination of Aspergillus conidia. Inoculum concentration and age significantly influenced germination. Different incubation temperatures revealed significant differences among Aspergillus species. The internal human milieu provides the ideal conditions for the development of invasive dis
American Society for Microbiology.
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5. Rapid Differentiation of Aspergillus Species from Other Medically Important Opportunistic Molds and Yeasts by PCR-Enzyme Immunoassay
We developed a PCR-based assay to differentiate medically important species of Aspergillus from one another and from other opportunistic molds and yeasts by employing universal, fungus-specific primers and DNA probes in an enzyme immunoassay format (PCR-EIA). Oligonucleotide probes, directed to the internal transcribed spacer 2 region of ribosomal DNA from A
American Society for Microbiology.
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6. Atividade do óleo essencial de Cymbopogon winterianus Jowitt ex Bor contra Candida albicans, Aspergillus flavus e Aspergillus fumigatus / Activity of essential oil from Cymbopogon winterianus Jowitt ex Bor against Candida albicans, Aspergillus flavus and Aspergillus fumigatus.
Devido ao aumento na incidência de infecções fúngicas por Candida albicans e Aspergillus spp. em pacientes imunocomprometidos, e ao surgimento de cepas resistentes aos antifúngicos convencionais, é crescente a necessidade de novos antifúngicos. Óleos essenciais têm sido testados contra fungos, e possuem potencial como agentes antifúngicos. Este tra
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2011
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7. Evaluation of Aspergillus Differential Medium
The new Aspergillus differential medium distinguishes effectively between members of the Aspergillus flavus group and other Aspergillus species of interest in medical mycology.
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8. General primer-mediated PCR for detection of Aspergillus species.
A PCR assay was developed for the diagnosis of invasive aspergillosis in immunocompromised patients. For this purpose, the complete nucleotide sequences of the genes encoding the 18S rRNA of Aspergillus nidulans, Aspergillus terreus, Aspergillus niger, and Aspergillus flavus were elucidated and aligned to the sequences of Aspergillus fumigatus and other clin
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9. Comparison of the Sensititre YeastOne Colorimetric Antifungal Panel with a Modified NCCLS M38-A Method To Determine the Activity of Voriconazole against Clinical Isolates of Aspergillus spp.
The susceptibilities of 63 isolates of Aspergillus spp. to voriconazole were evaluated by a modified NCCLS M38-A method and the Sensititre YeastOne method. The overall agreement was 82.5%, ranging from 100% for Aspergillus niger and Aspergillus terreus to 62.5% for Aspergillus flavus. Discrepancies between the methods were due to higher Sensititre MICs. The
American Society for Microbiology.
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10. Colorimetric Assay for Antifungal Susceptibility Testing of Aspergillus Species
A colorimetric assay for antifungal susceptibility testing of Aspergillus species (Aspergillus fumigatus, Aspergillus flavus, Aspergillus terreus, Aspergillus nidulans, and Aspergillus ustus) is described based on the reduction of the tetrazolium salt 2,3-bis(2-methoxy-4-nitro-5-[(sulphenylamino)carbonyl]-2H-tetrazolium-hydroxide (XTT) in the presence of men
American Society for Microbiology.
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11. Typing of Aspergillus species and Aspergillus fumigatus isolates by interrepeat polymerase chain reaction.
Polymerase chain reaction amplification of repetitive DNA motifs allows discrimination of Aspergillus species. In a preliminary survey, the DNA fingerprints appear to be identical when isolates of Aspergillus fumigatus are compared. When a primer deduced from a prokaryotic repeat motif is used, Aspergillus fumigatus isolates originating from different patien
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12. Fungi Isolated from Flue-cured Tobacco at Time of Sale and After Storage1
The fungi isolated from 100 samples of flue-cured tobacco from 12 markets in 2 tobacco belts comprised 11 genera, including 10 species of Aspergillus. The mean percentage per sample isolated from 62 samples of tobacco from Middle Belt markets was Alternaria, 40.6%; Aspergillus niger, 47.8%; Aspergillus repens, 38.0%; and Penicillium, 25.8%. The mean percenta