Pathogenic Fungus Morphology
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Antibiosis of Trichoderma spp strains native to northeastern Mexico against the pathogenic fungus Macrophomina phaseolina
Abstract Sampling of agricultural soils from the Mexican northeastern region was performed to detect Trichoderma spp., genetically characterize it, and assess its potential use as a biologic control agent against Macrophomina phaseolina. M. phaseolina is a phytopathogen that attacks over 500 species of cultivated plants and causes heavy losses in the regiona
Braz. J. Microbiol.. Publicado em: 2015-12
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2. Silver nanoparticle production by the fungus Fusarium oxysporum: nanoparticle characterisation and analysis of antifungal activity against pathogenic yeasts
The microbial synthesis of nanoparticles is a green chemistry approach that combines nanotechnology and microbial biotechnology. The aim of this study was to obtain silver nanoparticles (SNPs) using aqueous extract from the filamentous fungus Fusarium oxysporum as an alternative to chemical procedures and to evaluate its antifungal activity. SNPs production
Mem. Inst. Oswaldo Cruz. Publicado em: 2013
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3. Biological activity of the mite Sancassania sp. (Acari: Acaridae) from bat guano associated with the pathogenic fungus Histoplasma capsulatum
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 o
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-03
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4. Characterization of Colletotrichum lagenarium isolates, causal agent of anthracnose of cucurbitacea. / Caracterização de isolados de Colletotrichum lagenarium, agente causal da antracnose das Cucurbitáceas.
A antracnose, doença causada por fungos do gênero Colletotrichum, é uma das doenças mais importantes em muitas plantas cultivadas. Nas cucurbitáceas, como pepino, chuchu, melão e melancia, a antracnose é muito freqüente e causa prejuízos bastante elevados. O agente causal é o Colletotrichum lagenarium, que apresenta como sinonímias C. orbiculare e
Publicado em: 2005
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5. Using Chimeric Hypoviruses To Fine-Tune the Interaction between a Pathogenic Fungus and Its Plant Host
Infectious cDNA clones of mild (CHV1-Euro7) and severe (CHV1-EP713) hypovirus strains responsible for virulence attenuation (hypovirulence) of the chestnut blight fungus Cryphonectria parasitica were used to construct viable chimeric viruses. Differences in virus-mediated alterations of fungal colony morphology, growth rate, and canker morphology were mapped
American Society for Microbiology.
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6. A putative endosomal t-SNARE links exo- and endocytosis in the phytopathogenic fungus Ustilago maydis
We identified a temperature-sensitive mutant of the plant pathogenic fungus Ustilago maydis that is defective in the polar distribution of cell wall components and shows abnormal morphology. The affected gene, yup1, was cloned by complementation. It encodes a putative target soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor (t-SNA
Oxford University Press.
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7. A Gene Related to Yeast HOS2 Histone Deacetylase Affects Extracellular Depolymerase Expression and Virulence in a Plant Pathogenic Fungus
A gene, HDC1, related to the Saccharomyces cerevisiae histone deacetylase (HDAC) gene HOS2, was isolated from the filamentous fungus Cochliobolus carbonum, a pathogen of maize that makes the HDAC inhibitor HC-toxin. Engineered mutants of HDC1 had smaller and less septate conidia and exhibited an ∼50% reduction in total HDAC activity. Mutants were strongly
American Society of Plant Biologists.
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8. Guanyl Nucleotide Exchange Factor Sql2 and Ras2 Regulate Filamentous Growth in Ustilago maydis
The cyclic AMP (cAMP)-signaling pathway regulates cell morphology and plays a crucial role during pathogenic development of the plant-pathogenic fungus Ustilago maydis. Strains lacking components of this signaling pathway, such as the Gα-subunit Gpa3 or the adenylyl cyclase Uac1, are nonpathogenic and grow filamentously. On the other hand, strains exhibitin
American Society for Microbiology.
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9. Phenotypic switching in the human pathogenic fungus Cryptococcus neoformans is associated with changes in virulence and pulmonary inflammatory response in rodents
High-frequency reversible changes in colony morphology were observed in three strains of Cryptococcus neoformans. For one strain (SB4, serotype A), this process produced three colony types: smooth (S), wrinkled (W), and serrated (C). The frequency of switching between colony types varied for the individual colony transitions and was as high as 10−3. Mice i
The National Academy of Sciences.
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10. Evidence for two cell division cycle (CDC) genes that govern yeast bud emergence in the pathogenic fungus Wangiella dermatitidis.
Strains Mc2 and Mc3 are morphological mutants of the melanized, pathogenic fungus Wangiella dermatitidis. These strains possess temperature-sensitive (ts) mutations designated mcm2 and mcm3, respectively. At the restrictive temperature (37 degrees C), uninucleate yeast cells of strains Mc2 and Mc3 cease budding and initiate an isotropic mode of cellular deve
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11. Mutations in the Myp1 Gene of Ustilago Maydis Attenuate Mycelial Growth and Virulence
Mating between haploid, budding cells of the dimorphic fungus Ustilago maydis results in the formation of a dikaryotic, filamentous cell type. Mating compatibility is governed by two mating-type loci called a and b; transformation of genes from these loci (e.g., a1 and b1) into a haploid strain of different mating type (e.g., a2 b2) allows filamentous growth
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12. Invasion of Spores of the Arbuscular Mycorrhizal Fungus Gigaspora decipiens by Burkholderia spp.
Burkholderia species are bacterial soil inhabitants that are capable of interacting with a variety of eukaryotes, in some cases occupying intracellular habitats. Pathogenic and nonpathogenic Burkholderia spp., including B. vietnamiensis, B. cepacia, and B. pseudomallei, were grown on germinating spores of the arbuscular mycorrhizal fungus Gigaspora decipiens
American Society for Microbiology.