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| Barguil,Beatriz M; Resende,Mário Lúcio V; Resende,Renata S; Beserra Júnior,J. Evando A.; Salgado,Sônia M. L. |
| Phoma leaf spot, caused by Phoma costarricensis poses a serious threat to coffee (Coffea arabica) production, especially in the highlands of the state of Minas Gerais, Brazil. Extracts of citric biomass, coffee berry husks and coffee leaves severely affected by rust caused by Hemileia vastatrix, were evaluated against P. costarricensis. In an in vitro assay, aqueous extracts of rusted leaves and berry husks plus the commercial extracts based on citric biomass named Ecolife® and Agromil® were tested at various dilutions on the mycelial growth inhibition of P. costarricensis. In vivo, coffee seedlings maintained in glasshouse, were sprayed with these extracts seven days before inoculation of P. costarricensis. Only extracts from citric biomass had inhibitory... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Coffea arabica; Fungal disease; Control; Induced resistance; Elicitors. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000500014 |
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| Oliveira,Tassia Boeno; Aucique-Pérez,Carlos Eduardo; Rodrigues,Fabrício de Ávila. |
| ABSTRACT Considering the importance of blast, caused by Pyricularia oryzae, to impact wheat yield, this study investigated whether the foliar spray of potassium silicate (PS) could affect the photosynthesis of wheat plants and its potential to reduce disease symptoms. The Exp. 1 aimed to determine the effect of the foliar spray of PS on the photosynthetic performance of plants and was arranged in a completely randomized design with six treatments (plants sprayed with PS rates of 2.5, 5.0, 7.5, 10.0, and 12.5 g·L-1 at 35 days after emergence) and six replications. The leaf gas exchange (net CO2 assimilation rate (A), internal CO2 concentration (Ci), stomatal conductance to water vapor (gs), and transpiration rate (E)) as well as fluorescence of chlorophyll... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum L; Disease control; Fungal disease; Plant nutrition. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300423 |
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| Bücker Neto,Lauro; Oliveira,Rafael Rodrigues de; Wiebke-Strohm,Beatriz; Bencke,Marta; Weber,Ricardo Luís Mayer; Cabreira,Caroline; Abdelnoor,Ricardo Vilela; Marcelino,Francismar Correa; Zanettini,Maria Helena Bodanese; Passaglia,Luciane Maria Pereira. |
| Soybean [Glycine max (L.) Merril], one of the most important crop species in the world, is very susceptible to abiotic and biotic stress. Soybean plants have developed a variety of molecular mechanisms that help them survive stressful conditions. Hybrid proline-rich proteins (HyPRPs) constitute a family of cell-wall proteins with a variable N-terminal domain and conserved C-terminal domain that is phylogenetically related to non-specific lipid transfer proteins. Members of the HyPRP family are involved in basic cellular processes and their expression and activity are modulated by environmental factors. In this study, microarray analysis and real time RT-qPCR were used to identify putative HyPRP genes in the soybean genome and to assess their expression in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungal disease; HyPRP genes; Glycine max; Real time RT-qPCR. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200012 |
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| Registros recuperados: 16 | |
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