Data/hora: 18/06/2024 07:39:46

Biblioteca(s): | Embrapa Algodão; Embrapa Alimentos e Territórios; Embrapa Mandioca e Fruticultura; Embrapa Solos / UEP-Recife; Embrapa Tabuleiros Costeiros.
Data corrente: | 16/11/2023
Data da última atualização: | 16/11/2023
Autoria: | RIBEIRO, T. F. L.; OLIVEIRA, D. J. DE A.; COSTA, J. G. da; MARTINEZ GUTIERREZ, M. A.; OLIVEIRA, E. J. de; RIBEIRO JUNIOR, K. A. L.; GOULART, H. F.; RIFFEL, A.; SANTANA, A. E. G.
Afiliação: | THYAGO FERNANDO LISBOA RIBEIRO, Federal University of Alagoas; DEMETRIOS JOSÉ DE ALBUQUERQUE OLIVEIRA, Federal University of Alagoas; JOAO GOMES DA COSTA, CNAT; MIGUEL ANGEL MARTINEZ GUTIERREZ, Federal University of Alagoas; EDER JORGE DE OLIVEIRA, CNPMF; KARLOS ANTONIO LISBOA RIBEIRO JUNIOR, Federal University of Alagoas; HENRIQUE FONSECA GOULART, Federal University of Alagoas; ALESSANDRO RIFFEL, CPATC; ANTONIO EUZEBIO GOULART SANTANA, Federal University of Alagoas.
Título: | Volatile organic compounds from cassava plants confer resistance to the Whitefly Aleurothrixus aepim (Goeldi, 1886).
Ano de publicação: | 2023
Fonte/Imprenta: | Insects, v. 14, n. 762, 2023.
Páginas: | 14 p.
DOI: | 10.3390/insects14090762
Idioma: | Inglês
Conteúdo: | Cassava is an essential tuber crop used to produce food, feed, and beverages. Whitefly pests, including Aleurothrixus aepim (Goeldi, 1886) (Hemiptera: Aleyrodidae), significantly affect cassava-based agroecosystems. Plant odours have been described as potential pest management tools, and the cassava clone M Ecuador 72 has been used by breeders as an essential source of resistance. In this study, we analysed and compared the volatile compounds released by this resistant clone and a susceptible genotype, BRS Jari. Constitutive odours were collected from young plants and analysed using gas chromatography?mass spectrometry combined with chemometric tools. The resistant genotype released numerous compounds with previously described biological activity and substantial amounts of the monoterpene (E)-&#946;-ocimene. Whiteflies showed non-preferential behaviour when exposed to volatiles from the resistant genotype but not the susceptible genotype. Furthermore, pure ocimene caused non-preferential behaviour in whiteflies, indicating a role for this compound in repellence. This report provides an example of the intraspecific variation in odour emissions from cassava plants alongside information on odorants that repel whiteflies; these data can be used to devise whitefly management strategies. A better understanding of the genetic variability in cassava odour constituents and emissions under field conditions may accelerate the development of more resistant cassava varieties.
Palavras-Chave: | Manihot esculenta Crantz; Repellence activity; Terpenes.
Thesagro: | Euphorbiaceae.
Thesaurus Nal: | Semiochemicals.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158413/1/VolatileOrganicCompounds.pdf
Registro original: | Embrapa Alimentos e Territórios (CNAT)

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CNAT - (44-1) - UPC - AP - DD -  - RIB -  - DIS
CPATC - (26178-1) - UPC - AP - DD -  -  -  - DIS
CNPMF - (33857-1) - UPC - AP - DD - Publicação digital -  -  - DIS
CNPA - (29096-1) - UPC - AP - DD -  -  -  - DIS
CNPS-UEPR - (4006-1) - UPC - AP - DD -  -  -  - DIS