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Provedor de dados:  Biological Sciences
País:  Brazil
Título:  Antibacterial activity of medicinal plant extracts against Ralstonia solanacearum (Smith) that causes bacterial wilt in hot pepper (Capsicum annuum L.)
Autores:  Yihune, Endalamaw
Yemata, Getahun
Data:  2019-04-17
Ano:  2019
Palavras-chave:  Biotechnology botany microbial crude extract
Eucalyptus citriodora (Hook)
Inhibition zone phytochemicals
Ricinus communis L. Biotechnology Microbial
Resumo:  This study was conducted to evaluate the in vitro antibacterial activity of some medicinal plants against Ralstonia solanacearum. Bioactive chemicals were extracted from Burcea antidysenterica, Eucalyptus citriodora, Justicia schimperiana, Lantana camara, Melia azedarach and Ricinus communis leaves using maceration method. The bioassay was evaluated by disc diffusion method. The pathogen was isolated from infected Capsicum annuum plants using Casamino acid-Peptone-Glucose agar (CPG) medium. The isolate was identified using cultural, biochemical characteristics, pathogenicity test and found to be R. solanacearum. The methanol extracts had different composition, percentage extract yield, antibacterial activity and relative percentage inhibition. Unlike others, extracts of E. citriodora and R. communis consisted of all the tested secondary metabolites. All species showed antibacterial activity except M. azedarach. Significant differences were recorded in antibacterial activity among species and test concentrations. The highest antibacterial activity and the lowest bacteriostatic and bactericidal concentrations were found from E. citriodora and R. communis extracts. The higher potency of E. citriodora and R. communis extracts suggested the potential of the two species as a biocide to control bacterial wilt. However, further in vivo studies on these species extracts are compulsory.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês

Editor:  Universidade Estadual De Maringá
Formato:  application/pdf
Fonte:  Acta Scientiarum. Biological Sciences; v. 41 (2019): Publicação contínua; e45402

Acta Scientiarum. Biological Sciences; v. 41 (2019): Publicação contínua; e45402


Direitos:  Direitos autorais 2019 Acta Scientiarum. Biological Sciences

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