In vitro activity of essential oils of Lippia sidoides and Lippia gracilis and their major chemical components against Thielaviopsis paradoxa, causal agent of stem bleeding in coconut palms
| Autor: | Rejane Rodrigues da Costa e Carvalho, Delson Laranjeira, José Luiz Sandes de Carvalho Filho, Paulo Estevão de Souza, Arie Fitzgerald Blank, Péricles Barreto Alves, Hugo Cesar Ramos de Jesus, Dulce Regina Nunes Warwick |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 36, Iss 2, Pp 241-244 (2013) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| Popis: | Essential oils of Lippia sidoides, Lippia gracilis and their main chemical components were investigated for in vitro control of Thielaviopsis paradoxa. Mycelial growth and a number of pathogen conidia were inhibited by the essential oil of L. sidoides at all concentrations tested (0.2; 0.5; 1.0; 3.0 µL mL-1). L. sidoides oil contained 42.33% thymol and 4.56% carvacrol, while L. gracilis oil contained 10% thymol and 41.7% carvacrol. Mycelial growth and conidial production of T. paradoxa were completely inhibited by thymol at a 0.3 µL m-1 concentration. The results suggest that thymol could potentially be used for controlling coconut stem bleeding. |
| Databáze: | Directory of Open Access Journals |
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