Data/hora: 01/06/2024 17:52:01

Provedor de dados: | Ciência Rural
País: | Brazil
Título: | Green propolis ethanolic extract in bean plant protection against bacterial diseases
Autores: | Jaski,Jonas Marcelo; Telaxka,Fabio Junior; Moura,Gabriela Silva; Franzener,Gilmar.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Alternative control; Wildfire; Bacterial blight; Resistance induction.
Resumo: | ABSTRACT:  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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600151
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20180597
Formato: | text/html
Fonte: | Ciência Rural  v.49 n.6 2019
Fonte: | info:eu-repo/semantics/openAccess