Infecção por Fusarium graminearum e Fusarium verticillioides em sementes de milho
نویسندگان
چکیده
منابع مشابه
Interpretação De Dados De Testes De Vigor Em Sementes De Milho
RESUMO O objetivo desta pesquisa foi estudar, em lotes de sementes de milho, a possibilidade de estabelecer relações entre os dados de vigor obtidos em laboratório com os verificados no campo. Para tanto, foram utilizados 28 lotes (tratamentos) de sementes de milho (cv. Al Bandeirante) padronizadas em relação ao grau de umidade, à largura, ao comprimento e à germinação. Posteriormente, foram co...
متن کاملGenomic analysis of Fusarium verticillioides.
Fusarium verticillioides (teleomorph Gibberella moniliformis) can be either an endophyte of maize, causing no visible disease, or a pathogen-causing disease of ears, stalks, roots and seedlings. At any stage, this fungus can synthesize fumonisins, a family of mycotoxins structurally similar to the sphingolipid sphinganine. Ingestion of fumonisin-contaminated maize has been associated with a num...
متن کاملEffect of inoculation time and point of entry on disease severity in Fusarium graminearum, Fusarium verticillioides, or Fusarium subglutinans inoculated maize ears1
To determine if differences exist in the ability of three Fusarium species (F. graminearum, F. verticillioides, and F. subglutinans) to infect maize ears as the silks and kernels mature, one moderately resistant and two susceptible hybrids were inoculated at two points of entry (silk channel and kernels) in 1994 and 1995. Inoculations were conducted nine times for each part of the ear starting ...
متن کاملTeste De Tetrazólio Em Sementes De Abobrinha
The objective of this research was to develop an appropriate tetrazolium methodology for viability and vigor evaluation of squash seeds. The following procedures were tested for preconditioning of the seeds: moistening in wet paper towel for 16 to 24h at 25°C; immersion in water for 15, 30 and 60 minutes at 40°C for tegument removal, and for 30 and 60 minutes for removal of the embryo surroundi...
متن کاملFunctional analysis of the Fusarium graminearum phosphatome.
Phosphatases are known to play important roles in the regulation of various cellular processes in eukaryotes. However, systematic characterization of the phosphatome has not been reported in phytopathogenic fungi. The wheat scab fungus Fusarium graminearum contains 82 putative phosphatases. The biological functions of each phosphatase were investigated in this study. Although 11 phosphatase gen...
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ژورنال
عنوان ژورنال: Pesquisa Agropecuária Tropical
سال: 2014
ISSN: 1983-4063
DOI: 10.1590/s1983-40632014000100011