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Registro Completo |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
23/05/2011 |
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Data da última atualização: |
30/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NOBILE, P. M.; WATTEBLED, F.; QUECINI, V. M.; GIRARDI, C. L.; LORMEAU, M.; LAURENS, F. |
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Afiliação: |
PAULA MACEDO NOBILE, INRA; FABRICE WATTEBLED, UNIVERSITÉ DES SCIENCES ET TECHNOLOGIES DE LILLE; VERA MARIA QUECINI, CNPUV; CESAR LUIS GIRARDI, CNPUV; MARYLINE LORMEAU, INRA; FRANÇOIS LAURENS, INRA. |
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Título: |
Identification of a novel α-L-arabinofuranosidase gene associated with mealiness in apple. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Journal of Experimental Botany, London, v. 62, v. 12, p. 4309-4321, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
In order to investigate the genetic bases of the physiological syndrome mealiness that causes abnormal fruit softening and juice loss in apples, an integrative approach was devised, consisting of sensory, instrumental, biochemical, genetic, and genomic methods. High levels of activity of a-L-arabinofuranosidase (a-AFase), a hydrolase acting on the pectic component of the cell walls, were found in individuals exhibiting the mealiness phenotype in a segregating population. The expression levels of the previously uncharacterized apple AF gene MdAF3 are higher in fruits from plants consistently showing mealiness symptons and high a-AFase activity. The transcription of MdAF3 is differentially regulated in distinct genomic contexts and appears to be independent of ethylene. Thus, it is likely to be controlled by endogenous developmental mechanisms associated with fruit ripening. The use of integrative approaches has allowed the identification of a novel contributor to the mealiness phenotype in apple and it has been possible to overcome the problems posed by the unavailability of near-isogenic lines to dissect the genetic bases of a complex physiological trait in woody perennial species. |
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Palavras-Chave: |
Expressão gênica. |
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Thesagro: |
Distúrbio fisiológico; Fruticultura; Genética; Maçã. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/39812/1/NOBILE-JExperBotany-v62n12p4309-2011.pdf
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Marc: |
LEADER 01912naa a2200241 a 4500
001 1889275
005 2023-11-30
008 2011 bl uuuu u00u1 u #d
100 1 $aNOBILE, P. M.
245 $aIdentification of a novel α-L-arabinofuranosidase gene associated with mealiness in apple.$h[electronic resource]
260 $c2011
520 $aIn order to investigate the genetic bases of the physiological syndrome mealiness that causes abnormal fruit softening and juice loss in apples, an integrative approach was devised, consisting of sensory, instrumental, biochemical, genetic, and genomic methods. High levels of activity of a-L-arabinofuranosidase (a-AFase), a hydrolase acting on the pectic component of the cell walls, were found in individuals exhibiting the mealiness phenotype in a segregating population. The expression levels of the previously uncharacterized apple AF gene MdAF3 are higher in fruits from plants consistently showing mealiness symptons and high a-AFase activity. The transcription of MdAF3 is differentially regulated in distinct genomic contexts and appears to be independent of ethylene. Thus, it is likely to be controlled by endogenous developmental mechanisms associated with fruit ripening. The use of integrative approaches has allowed the identification of a novel contributor to the mealiness phenotype in apple and it has been possible to overcome the problems posed by the unavailability of near-isogenic lines to dissect the genetic bases of a complex physiological trait in woody perennial species.
650 $aDistúrbio fisiológico
650 $aFruticultura
650 $aGenética
650 $aMaçã
653 $aExpressão gênica
700 1 $aWATTEBLED, F.
700 1 $aQUECINI, V. M.
700 1 $aGIRARDI, C. L.
700 1 $aLORMEAU, M.
700 1 $aLAURENS, F.
773 $tJournal of Experimental Botany, London$gv. 62, v. 12, p. 4309-4321, 2011.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
29/06/2018 |
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Data da última atualização: |
16/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
FIGUEIREDO, A.; NASCIMENTO, L. M.; LOPES, L. G.; GIGLIOTI, R.; ALBUQUERQUE, R. D. D. G.; SANTOS, M. G.; FALCÃO, D. Q.; NOGUEIRA, J. A. P.; ROCHA, L.; CHAGAS, A. C. de S. |
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Afiliação: |
Amanda Figueiredo, UNESP; Leonor M. Nascimento, UFRJ; Louyse G. Lopes, UNICEP; Rodrigo Giglioti, UNESP; Ricardo D. D. G. Albuquerque, UFRJ; Marcelo G. Santos, UERJ; Deborah Q. Falcão, UFF; Jeane A. P. Nogueira, UFRJ; Leandro Rocha, UFRJ; UFF; ANA CAROLINA DE SOUZA CHAGAS, CPPSE. |
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Título: |
First report of the effect of Ocotea elegans essential oil on Rhipicephalus (Boophilus) microplus. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Veterinary Parasitology, v.252, p.131-136, mar. 2018. |
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DOI: |
https://doi.org/10.1016/j.vetpar.2018.02.018 |
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Idioma: |
Inglês |
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Conteúdo: |
Rhipicephalus (Boophilus) microplus is responsible for reducing animal welfare, causing a drop in productive performance and transmitting hemoparasites. The main strategy of tick control is application of synthetic acaricides. However, parasite resistance to these compounds is a major concern. Therefore, the acaricidal and repellent in vitro effect of the Ocotea elegans essential oil on larvae and adult females of R. (B.) microplus were evaluated. The larval packet test (LPT), larval repellency test (RT) and adult immersion test (AIT) were performed. The essential oil was analyzed by gas chromatography (GC/FID) and the structure of the oil?s major constituent (92.2% sesquirosefuran) was elucidated by nuclear magnetic resonance. In the AIT, efficacy higher than 90% was detected from the concentration 25 mg/mL upward. In both LPTs performed after 48 h, only the 100 mg/mL concentration resulted in mortalities above 70%. On the other hand, the essential oil caused an average of 95.8% repellency from 0.78 to 100 mg/mL. The LC50 in the two LPT (48 h) tests were 59.68 and 25.59 mg/mL, respectively. The LC50 and LC90 in the AIT were 4.96 and 17.37 mg/mL, and in the RT they were 0.04 and 1.24 mg/mL respectively. We conclude that the essential oil of O. elegans leaves has a significant acaricidal effect on engorged females and on larval repellency of R. (B.) microplus ticks, and can be a promising alternative for the control of this ectoparasite. |
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Palavras-Chave: |
Carrapato de gado; Controle alternativo; Repelência; Sesquirosefurano. |
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Thesagro: |
Resistência. |
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Thesaurus NAL: |
Ticks. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/179297/1/Figueiredo-et-al-2018-Essential-oil-Ocotea.pdf
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Marc: |
LEADER 02399naa a2200313 a 4500
001 2092933
005 2019-01-16
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.vetpar.2018.02.018$2DOI
100 1 $aFIGUEIREDO, A.
245 $aFirst report of the effect of Ocotea elegans essential oil on Rhipicephalus (Boophilus) microplus.$h[electronic resource]
260 $c2018
520 $aRhipicephalus (Boophilus) microplus is responsible for reducing animal welfare, causing a drop in productive performance and transmitting hemoparasites. The main strategy of tick control is application of synthetic acaricides. However, parasite resistance to these compounds is a major concern. Therefore, the acaricidal and repellent in vitro effect of the Ocotea elegans essential oil on larvae and adult females of R. (B.) microplus were evaluated. The larval packet test (LPT), larval repellency test (RT) and adult immersion test (AIT) were performed. The essential oil was analyzed by gas chromatography (GC/FID) and the structure of the oil?s major constituent (92.2% sesquirosefuran) was elucidated by nuclear magnetic resonance. In the AIT, efficacy higher than 90% was detected from the concentration 25 mg/mL upward. In both LPTs performed after 48 h, only the 100 mg/mL concentration resulted in mortalities above 70%. On the other hand, the essential oil caused an average of 95.8% repellency from 0.78 to 100 mg/mL. The LC50 in the two LPT (48 h) tests were 59.68 and 25.59 mg/mL, respectively. The LC50 and LC90 in the AIT were 4.96 and 17.37 mg/mL, and in the RT they were 0.04 and 1.24 mg/mL respectively. We conclude that the essential oil of O. elegans leaves has a significant acaricidal effect on engorged females and on larval repellency of R. (B.) microplus ticks, and can be a promising alternative for the control of this ectoparasite.
650 $aTicks
650 $aResistência
653 $aCarrapato de gado
653 $aControle alternativo
653 $aRepelência
653 $aSesquirosefurano
700 1 $aNASCIMENTO, L. M.
700 1 $aLOPES, L. G.
700 1 $aGIGLIOTI, R.
700 1 $aALBUQUERQUE, R. D. D. G.
700 1 $aSANTOS, M. G.
700 1 $aFALCÃO, D. Q.
700 1 $aNOGUEIRA, J. A. P.
700 1 $aROCHA, L.
700 1 $aCHAGAS, A. C. de S.
773 $tVeterinary Parasitology$gv.252, p.131-136, mar. 2018.
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Embrapa Pecuária Sudeste (CPPSE) |
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