Thielaviopsis Basicola
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. 'Gloriosa': cultivar de alface americana tropicalizada
'Gloriosa' é uma cultivar de alface (Lactuca sativa L.) americana tropicalizada e resistente a Thielaviopsis basicola. Foi selecionada a partir de variantes da cultivar Lucy Brown, pelo método genealógico. Progênies S1 a S6 foram selecionadas para resistência a T. basicola, características hortícolas, tolerância ao pendoamento precoce e adaptação a
Horticultura Brasileira. Publicado em: 2008-09
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2. Reação de cultivares de alface a Thielaviopsis basicola
A alface é a folhosa de maior importância no Brasil. O presente trabalho visou determinar a reação de cultivares de alface à murchadeira provocada pelo fungo Thielaviopsis basicola, na fase juvenil. Um experimento foi conduzido em casa-de-vegetação em delineamento inteiramente casualizado, em esquema fatorial 37 x 2 (cultivares, com e sem inoculação
Horticultura Brasileira. Publicado em: 2008-09
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3. Reação de alface (Lactuca sativa L.) a Thielaviopsis basicola (Berk. &Broome) Ferraris / Lettuce (Lactuca sativa L.) reaction to Thielaviopsis basicola (Berk. &Broome) Ferraris
A alface é a principal hortaliça folhosa do Brasil. A podridão negra das raízes causada pelo fungo Thielaviopsis basicola vem limitando o cultivo da alface americana ´Lucy Brown`. Os objetivos desta pesquisa foram: determinar a reação das cultivares comerciais de alface à T. basicola; elucidar a herança da resistência de alface ao patógeno e selec
Publicado em: 2006
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4. 'PiraRoxa': cultivar de alface crespa de cor vermelha intensa
'PiraRoxa' é uma cultivar de alface (Lactuca sativa L.) crespa de cor vermelha intensa, resistente à Bremia lactucae, Thielaviopsis basicola e LMV, patótipo II. Foi selecionada por meio do método genealógico a partir do cruzamento entre o tipo Lolla Rossa 'RS 521998' e a cv. Gizela. Apresenta plantas grandes e vigorosas, folhas crespas, coloração verm
Horticultura Brasileira. Publicado em: 2005-03
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5. Resistência genética, fungicidas e solarização para o controle de Thielaviopsis basicola (Berk. &Broome) Ferraris na cultura de alface (Lactuca sativa L.). / Genetic resistance, fungicides and solarization for the control of Thielaviopsis basicola (Berk. &Broome) Ferraris in lettuce crop (Lactuca sativa L.).
Lettuce is the most used leafy vegetable in Brazil. Its crop is being severely affected by Thielaviopsis basicola, fungus which causes root rot and stunting in plants. There are no control studies about this pathogen for the brazillian conditions. This research aimed: to determine the T. basicola occurence in São Paulo State commercial lettuce and other lea
Publicado em: 2005
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6. Complex of Virus-Like Particles Containing Double-Stranded RNA from Thielaviopsis basicola
Six randomly selected isolates of Thielaviopsis basicola were found to contain spherical virus-like particles (VLPs) approximately 40 nm in diameter. One isolate, ATCC 34114, selected for further analysis contained a complex of VLPs that sedimented as eight or more bands in sucrose density gradients and contained five size classes of double-stranded RNA. Fiv
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7. Cyanide production by Pseudomonas fluorescens helps suppress black root rot of tobacco under gnotobiotic conditions
Pseudomonas fluorescens CHA0 suppresses black root rot of tobacco, a disease caused by the fungus Thielaviopsis basicola. Strain CHA0 excretes several metabolites with antifungal properties. The importance of one such metabolite, hydrogen cyanide, was tested in a gnotobiotic system containing an artificial, iron-rich soil. A cyanidenegative (hcn) mutant, CHA
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8. Pathogen-induced elicitin production in transgenic tobacco generates a hypersensitive response and nonspecific disease resistance.
The rapid and effective activation of disease resistance responses is essential for plant defense against pathogen attack. These responses are initiated when pathogen-derived molecules (elicitors) are recognized by the host. We have developed a strategy for creating novel disease resistance traits whereby transgenic plants respond to infection by a virulent
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9. Global control in Pseudomonas fluorescens mediating antibiotic synthesis and suppression of black root rot of tobacco.
Pseudomonas fluorescens CHA0 colonizes plant roots, produces several secondary metabolites in stationary growth phase, and suppresses a number of plant diseases, including Thielaviopsis basicola-induced black root rot of tobacco. We discovered that mutations in a P. fluorescens gene named gacA (for global antibiotic and cyanide control) pleiotropically block
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10. Characterization of the hcnABC Gene Cluster Encoding Hydrogen Cyanide Synthase and Anaerobic Regulation by ANR in the Strictly Aerobic Biocontrol Agent Pseudomonas fluorescens CHA0
The secondary metabolite hydrogen cyanide (HCN) is produced by Pseudomonas fluorescens from glycine, essentially under microaerophilic conditions. The genetic basis of HCN synthesis in P. fluorescens CHA0 was investigated. The contiguous structural genes hcnABC encoding HCN synthase were expressed from the T7 promoter in Escherichia coli, resulting in HCN pr
American Society for Microbiology.