Data/hora: 20/06/2024 16:53:28

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 23/06/2020
Data da última atualização: | 23/06/2020
Autoria: | SANTOS, A. R. B.; LARANJEIRA, D.; DIAS, L. R. C.; SOUSA, E. da S.; MELO, C. D. S. de; LIMA, S. G. de; SILVA, P. H. S. da; ATHAYDE SOBRINHO, C.
Afiliação: | Ananda Rosa Beserra Santos, UFRPE, Recife, PE.; Delson Laranjeira, UFRPE, Recife, PE.; Larisse Raquel Carvalho Dias, UEMA, São Luis, MA.; Edymilais Da Silva Sousa, UFPI, Teresina, PI.; Christian Dário Silva de Melo, UFPI, Teresina, PI; Sidney Gonçalo de Lima, UFPI, Teresina, PI.; PAULO HENRIQUE SOARES DA SILVA, CPAMN; CANDIDO ATHAYDE SOBRINHO, CPAMN.
Título: | Chemical composition and control of Sclerotium rolfsii Sacc by essential oils.
Ano de publicação: | 2020
Fonte/Imprenta: | African Journal of Microbiology Research, v. 14, n. 4, p. 119-128, Apr. 2020.
ISSN: | 1996-0808
DOI: | 10.5897/AJMR2020.9286
Idioma: | Inglês
Conteúdo: | Essential oils of medicinal plants show potential to control phytopathogens. Essential oils of Lippia sidoides Cham, Lippia lasiocalycina Cham, Lippia origanoides Kunth - Teresina, Lippia origanoides Kunth - Jatobá, Mesosphaerum suaveolens (L.) Kuntze, Croton sonderianus Muell. Arg. And Croton zehntneri Pax et Hoffm. were evaluated regarding their chemical composition and in controlling the Sclerotium rolfsii Sacc. The experiments were carried out in a completely randomized design with five concentrations and the control (without oil application): 0.0313; 0.0625; 0.1250; 0.2500 and 0.500 mL kg-1 in Petri dishes with PDA medium (potato-dextrose-agar). The evaluations consisted of daily measurements of the colony diameter in diametrically opposite directions, 24 h after the experiment installation and maintained until the radial reach of the colony on the edges of the Petri dish, in one of the treatments. The chemical composition of the essential oils were evaluated by GC-MS and the following compounds were identified: Thymol (33.5%, L. sidoides); piperitenone oxide (67.7%, L. lasiocalicyna); borneol (19.2%, L. origanoides); borneol carvacrol (34.4%, L. origanoides ? Jatobá); sabiene (30.3%, M. suaveolens); &#946;-sabinene (30.5%, C. sonderianus); and estragole (90,1%, C. zehntneri). The S. rolfsii fungus is highly sensitive to L. sidoides, L. origanoides - Jatobá and C. zehntneri essential oils, suggesting its use in the management of Sclerotium wilt in cowpea.
Palavras-Chave: | Atividade antifúngica; Controle alternativo.
Thesagro: | Doença de Planta; Fungo; Murcha de Esclerócio; Óleo Essencial; Patógeno; Vigna Unguiculata.
Thesaurus Nal: | Antifungal agents; Fungi; Sclerotium.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/214164/1/ChemicalCompositionControlSclerotiumAJMR2020.pdf
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (32978-1) - UPC - AP - DD -  -  -  - DIS