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| Catão,Hugo Cesar Rodrigues Moreira; Gomes,Luiz Antônio Augusto; Santos,Heloisa Oliveira dos; Guimarães,Renato Mendes; Fonseca,Pedro Henrique Faria; Caixeta,Franciele. |
| O objetivo deste trabalho foi avaliar os padrões eletroforéticos das proteínas resistentes ao calor e a atividade da enzima endo-β-mananase durante a germinação de sementes de alface, em alta temperatura. Sementes de oito cultivares de alface foram submetidas aos testes de germinação, primeira contagem e emergência em duas temperaturas, 20 e 35ºC. Foram calculados o índice de velocidade de germinação (IVG) e o índice de velocidade de emergência (IVE). Avaliou-se, também, a expressão das proteínas resistentes ao calor e da enzima endo-β-mananase, para todos os tratamentos. Utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 2x8, com duas temperaturas e oito cultivares. A maior germinação é observada a 35ºC na cultivar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Endo-?-mananase; Proteínas tolerantes ao calor; Termoinibição. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000400316 |
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| Dantas,Ísis Barreto; Oliveira,João Almir de; Santos,Heloisa Oliveira dos; Pinho,Édila Vilela Resende Von; Rosa,Sttela Dellyzete Veiga Franco da. |
| Seed quality may be affected by several factors, including permeability, color, and lignin content in the seed coat. This study aimed at evaluating influence of lignin content in the tegument of seed samples of six different soybean cultivars, in which half of each sample was inoculated with the fungus Aspergillus flavus, on the physical and physiological quality, and on the seed health, during 180 days storage period, under cold chamber with controlled conditions of temperature and RH. For that, at each interval of 60 days, samples were removed, and the physiological quality of these seeds was assessed by means of moisture and lignin contents; and by tests of seed health, germination, and electrical conductivity. The moisture content of seeds remained... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Inoculation; Seed storage; Resistance to infection. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000400003 |
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| Alves,M. Vinicius Prado; Pinho,Édila Vilela de Resende Von; Santos,Heloisa Oliveira dos; Alves,Gustavo Costa Prado; Carvalho,Maria Laene Moreira de; Bustamante,Fernanda de Oliveira. |
| Resumen El momento de cosecha se correlaciona con la calidad fisiológica de la semilla y puede definirse a través de la germinación y las pruebas de vigor. Los rayos X son una buena técnica para evaluar la calidad de la semilla, ya que pueden reducir la subjetividad del análisis, volviendo el proceso más rápido y más eficiente. Nuestro objetivo fue evaluar el área libre interna de la semilla de jiló (Solanum gilo), a través del análisis de la imagen de rayos X, y relacionar los resultados con la germinación de la semilla en distintas etapas de maduración. Las variables evaluadas fueron: área del objeto, perímetro, desviación estándar, y área de fracción, que representa las áreas libres internas de las semillas. El diseño experimental fue completamente... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jiló; Rayos X; Madurez fisiológica. |
| Ano: 2018 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952018000200267 |
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| Marques,Thaís Lima; Von Pinho,Renzo Garcia; Von Pinho,Édila Vilela de Resende; Santos,Heloisa Oliveira dos. |
| ABSTRACT Knowing genes related to water deficit is a valuable tool to assist and accelerate the selection process of maize genotypes more adapted to drought conditions. Therefore, this work aimed to evaluate genes expression related to tolerance to water deficit in maize lines, using proteomic and transcriptomic analyses. Two lines previously classified as tolerant (91-T) and non-tolerant (57-NT) to low water availability were used. Dried seeds, ears tips, and seedlings (collected at three, five, and seven days after sowing) of the two maize lines (91-T and 57-NT) were used in proteomic analyses. Seedlings were subject to two contrasting water-availability conditions (70% and 10% of the water retention capacity). The expression of catalase, peroxidase, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Abiotic stress; Electrophoresis; QRT-PCR.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100233 |
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| Rocha,Debora Kelli; Carvalho,Everson Reis; Pires,Raquel Maria de Oliveira; Santos,Heloisa Oliveira dos; Penido,Amanda Carvalho; Andrade,Dayliane Bernardes de. |
| ABSTRACT The use of an appropriate method that accurately expresses physiological seed quality and minimizes possible phytotoxicity by chemical products in laboratory testing with soybean seeds is relevant. The objective of this work was to evaluate the influence and infer the method adequacy for the representative evaluation of physiological quality of soybean seeds treated with phytosanitary products. Two experiments were carried out in a completely randomized design, with trial 1 in a 9×5 factorial scheme involving nine seed treatments, including fungicides and insecticides, and solutions with five osmotic potentials (0, -0.25, -0.5, -0.75 and -1.0 MPa) for wetting a paper substrate in a germination experiment, with evaluation of the normal seedlings at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seed analysis; Toxicity; Glycine max; Physiological quality; Seed treatment.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100209 |
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