Avaliação in Vitro da Atividade Antibacteriana de Diferentes Própolis

Jardim, Denyse Moraes; Oliveira, Keily Alves de Moura; Oliveira, Glauco Vieira de

doi:10.5151/foodsci-microal-274

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“…Propolis stands out among natural substances with antimicrobial potential (JARDIM, 2014). It is a complex substance produced by bees and deposited in their hives.…”

Section: Introductionmentioning

confidence: 99%

Green propolis ethanolic extract in bean plant protection against bacterial diseases

et al. 2019

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The aim of this study was to evaluate the ethanolic extract of green propolis (EEP) in the protection of common bean plants against two main bacterial cultures, bacterial blight (Xanthomonas axonopodis pv. phaseoli) and wildfire (Pseudomonas syringae pv. tabaci). Experiments on antimicrobial activity were performed, inducing phytoalexins, defense-related enzymes, and disease severity, under concentrations of 0, 0.5, 1.0, 2.5, and 5.0%. The EEP presented antimicrobial activity on both phytobacteria, causing a decrease in their development. It has also promoted a linear accumulation of phaseolin in bean hypocotyls according to the EEP concentration used. There was a reduction in the lesion area, which was caused by bacterial blight on bean leaves treated with EEP, and local and systemic effect were observed. Polyphenoloxidase was activated with 5% EEP, reaching the maximum activation time 62.5 h after application. An increase was observed in the activity of phenylalanine ammonia-lyase in plants treated with EEP, with local and systemic effect. Results indicated the potential of EEP in the control of these diseases.

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“…Propolis stands out among natural substances with antimicrobial potential (JARDIM, 2014). It is a complex substance produced by bees and deposited in their hives.…”

Section: Introductionmentioning

confidence: 99%