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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
14/01/2020 |
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Data da última atualização: |
20/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GOIANA, E. S. S.; DIAS, N. da S.; MUNIZ, C. R.; SOARE, A. A.; ALVES, J. C.; VIDAL-NETO, F. C.; SILVA, C. S. B. D. |
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Afiliação: |
Elaine S. S. Goiana, CNPAT; NIVIA DA SILVA DIAS PINI, CNPAT; CELLI RODRIGUES MUNIZ, CNPAT; Arlete A. Soares, Universidade Federal do Ceará - UFC/Laboratório deMorfologia e Anatomia Vegetal; James C. Alves, Universidade Federal do Ceará - UFC/Laboratório deMorfologia e Anatomia Vegetal; Francisco C. Vidal-Neto, CNPAT; CHERRE SADE BEZERRA DA SILVA, CNPA. |
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Título: |
Dwarf-cashew resistance to whitefly (Aleurodicus cocois) linked tomorphological and histochemical characteristics of leaves. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pest Management Science, v. 76, n. 2, p. 464–471, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
The cashewwhitefly (CW), Aleurodicus cocois, is an important pest of cashewin Brazil. The use of resistant plants may be an effective strategy for the control of this pest. In a preliminary assay,we found thatdwarf-cashewclones showdifferent levels of resistance to CW.Here,we hypothesized that such resistance is associated with morphological characteristics of cashew leaves and their content of phenolic compounds. We determined (i) the attractiveness and suitability for oviposition of five dwarf-cashew clones towards CW, (ii) the leaf morphology and chemistry of those clones, and (iii) the relationship between leaf characteristics and resistance to CW. In greenhouse multiple-choice assays, PRO143/7 and CCP76 showed, respectively, the lowest and highest counts of both CWadults and eggs. Scanning electron microscopy (SEM) analysis revealed that PRO143/7 and EMBRAPA51 have, respectively, the highest and lowest numbers of leaf glandular trichomes.We found a negative correlation between number of trichomes in the abaxial surface of cashew leaves and CW oviposition. In addition, confocal microscopy analysis and histochemical tests with ferrous sulfate indicated a higher accumulation of phenolic compounds in the resistant clone PRO143/7 relative to the other clones. Dwarf-cashew clones did not significantly differ based on the number of leaf epicuticular striations, and the thickness of both leaf lamina and the epidermal layer. The resistance of dwarf-cashew plants to CW is associated with an elevated number of trichomes and accumulation of high levels of phenolics in leaves. Additionally, the contribution of epicuticular striation density and thickness of leaf lamina/epidermal layer are insignificant. MenosThe cashewwhitefly (CW), Aleurodicus cocois, is an important pest of cashewin Brazil. The use of resistant plants may be an effective strategy for the control of this pest. In a preliminary assay,we found thatdwarf-cashewclones showdifferent levels of resistance to CW.Here,we hypothesized that such resistance is associated with morphological characteristics of cashew leaves and their content of phenolic compounds. We determined (i) the attractiveness and suitability for oviposition of five dwarf-cashew clones towards CW, (ii) the leaf morphology and chemistry of those clones, and (iii) the relationship between leaf characteristics and resistance to CW. In greenhouse multiple-choice assays, PRO143/7 and CCP76 showed, respectively, the lowest and highest counts of both CWadults and eggs. Scanning electron microscopy (SEM) analysis revealed that PRO143/7 and EMBRAPA51 have, respectively, the highest and lowest numbers of leaf glandular trichomes.We found a negative correlation between number of trichomes in the abaxial surface of cashew leaves and CW oviposition. In addition, confocal microscopy analysis and histochemical tests with ferrous sulfate indicated a higher accumulation of phenolic compounds in the resistant clone PRO143/7 relative to the other clones. Dwarf-cashew clones did not significantly differ based on the number of leaf epicuticular striations, and the thickness of both leaf lamina and the epidermal layer. The resistance of dwarf-cashew plants to CW is associa... Mostrar Tudo |
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Palavras-Chave: |
Leaf glandular trichomes; Leaf lamina; Leaf phenolic compounds. |
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Thesagro: |
Anacardium Occidentale. |
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Thesaurus Nal: |
Aleyrodidae; Antixenosis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208778/1/Dwarf-cashew-resistance-to-whitefly.pdf
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Marc: |
LEADER 02546naa a2200265 a 4500
001 2118760
005 2020-01-20
008 2019 bl uuuu u00u1 u #d
100 1 $aGOIANA, E. S. S.
245 $aDwarf-cashew resistance to whitefly (Aleurodicus cocois) linked tomorphological and histochemical characteristics of leaves.$h[electronic resource]
260 $c2019
520 $aThe cashewwhitefly (CW), Aleurodicus cocois, is an important pest of cashewin Brazil. The use of resistant plants may be an effective strategy for the control of this pest. In a preliminary assay,we found thatdwarf-cashewclones showdifferent levels of resistance to CW.Here,we hypothesized that such resistance is associated with morphological characteristics of cashew leaves and their content of phenolic compounds. We determined (i) the attractiveness and suitability for oviposition of five dwarf-cashew clones towards CW, (ii) the leaf morphology and chemistry of those clones, and (iii) the relationship between leaf characteristics and resistance to CW. In greenhouse multiple-choice assays, PRO143/7 and CCP76 showed, respectively, the lowest and highest counts of both CWadults and eggs. Scanning electron microscopy (SEM) analysis revealed that PRO143/7 and EMBRAPA51 have, respectively, the highest and lowest numbers of leaf glandular trichomes.We found a negative correlation between number of trichomes in the abaxial surface of cashew leaves and CW oviposition. In addition, confocal microscopy analysis and histochemical tests with ferrous sulfate indicated a higher accumulation of phenolic compounds in the resistant clone PRO143/7 relative to the other clones. Dwarf-cashew clones did not significantly differ based on the number of leaf epicuticular striations, and the thickness of both leaf lamina and the epidermal layer. The resistance of dwarf-cashew plants to CW is associated with an elevated number of trichomes and accumulation of high levels of phenolics in leaves. Additionally, the contribution of epicuticular striation density and thickness of leaf lamina/epidermal layer are insignificant.
650 $aAleyrodidae
650 $aAntixenosis
650 $aAnacardium Occidentale
653 $aLeaf glandular trichomes
653 $aLeaf lamina
653 $aLeaf phenolic compounds
700 1 $aDIAS, N. da S.
700 1 $aMUNIZ, C. R.
700 1 $aSOARE, A. A.
700 1 $aALVES, J. C.
700 1 $aVIDAL-NETO, F. C.
700 1 $aSILVA, C. S. B. D.
773 $tPest Management Science$gv. 76, n. 2, p. 464–471, 2019.
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Registro original: |
Embrapa Algodão (CNPA) |
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| 1. |  | GOIANA, E. S. S.; DIAS, N. da S.; MUNIZ, C. R.; SOARE, A. A.; ALVES, J. C.; VIDAL-NETO, F. C.; SILVA, C. S. B. D. Dwarf-cashew resistance to whitefly (Aleurodicus cocois) linked tomorphological and histochemical characteristics of leaves. Pest Management Science, v. 76, n. 2, p. 464–471, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Algodão. |
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