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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
20/12/2007 |
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Data da última atualização: |
15/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDREOTTI, R. |
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Afiliação: |
RENATO ANDREOTTI E SILVA, CNPGC. |
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Título: |
A synthetic bmti n-terminal fragment as antigen in bovine immunoprotection against the tick Boophilus microplus in a pen trial. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Experimental Parasitology, v. 116, n. 1, p. 66-70, May 2007. |
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DOI: |
https://doi.org/10.1016/j.exppara.2006.11.009 |
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Idioma: |
Inglês |
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Notas: |
Na publicação: Renato Andreotti. |
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Conteúdo: |
Cattle tick control remains a serious problem in cattle farms worldwide, due to the limited success achieved with chemicals. Although the use of vaccines for tick control may open possibilities for an integrated approach, the search for other protective antigens is still necessary to improve control. Boophilus microplus is a rich source of BmTIs, serine proteinase inhibitors that are present throughout the tick's lifecycle. The present paper reports a pen trial conducted to evaluate the performance of a synthetic BmTI N-terminal fragment as antigen against the tick in bovines. The trial was conducted with two groups of eight crossbred cattle under controlled infestation: one group was vaccinated with BmTI peptide using saponin as adjuvant and the other was kept as control. Challenge was performed with 15,000 larvae. The specific IgG response was measured by ELISA, with successful outcomes for vaccinated animals. Vaccination resulted in an 18.4% level of efficacy when compared with the control group. |
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Thesagro: |
Boophilus Microplus; Bovino; Carrapato; Imunização; Inibidor de Proteína; Sanidade Animal. |
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Thesaurus Nal: |
Animal health; Antigens; Cattle; Immunization; Serine proteinases; Synthetic peptides; Tick control. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01933naa a2200301 a 4500
001 1326267
005 2023-08-15
008 2007 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.exppara.2006.11.009$2DOI
100 1 $aANDREOTTI, R.
245 $aA synthetic bmti n-terminal fragment as antigen in bovine immunoprotection against the tick Boophilus microplus in a pen trial.
260 $c2007
500 $aNa publicação: Renato Andreotti.
520 $aCattle tick control remains a serious problem in cattle farms worldwide, due to the limited success achieved with chemicals. Although the use of vaccines for tick control may open possibilities for an integrated approach, the search for other protective antigens is still necessary to improve control. Boophilus microplus is a rich source of BmTIs, serine proteinase inhibitors that are present throughout the tick's lifecycle. The present paper reports a pen trial conducted to evaluate the performance of a synthetic BmTI N-terminal fragment as antigen against the tick in bovines. The trial was conducted with two groups of eight crossbred cattle under controlled infestation: one group was vaccinated with BmTI peptide using saponin as adjuvant and the other was kept as control. Challenge was performed with 15,000 larvae. The specific IgG response was measured by ELISA, with successful outcomes for vaccinated animals. Vaccination resulted in an 18.4% level of efficacy when compared with the control group.
650 $aAnimal health
650 $aAntigens
650 $aCattle
650 $aImmunization
650 $aSerine proteinases
650 $aSynthetic peptides
650 $aTick control
650 $aBoophilus Microplus
650 $aBovino
650 $aCarrapato
650 $aImunização
650 $aInibidor de Proteína
650 $aSanidade Animal
773 $tExperimental Parasitology$gv. 116, n. 1, p. 66-70, May 2007.
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Embrapa Gado de Corte (CNPGC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
04/10/2023 |
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Data da última atualização: |
13/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RESTREPO-COUPE, N.; CHRISTOFFERSEN, B. O.; LONGO, M.; ALVES, L. F.; CAMPOS, K. S.; ARAUJO, A. C. de; OLIVEIRA JUNIOR, R. C. de; PROHASKA, N.; SILVA, R. da; TAPAJOS, R.; WIEDEMANN, K. T.; WOFSY, S. C.; SALESKA, S. R. |
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Afiliação: |
NATALIA RESTREPO-COUPE, UNIVERSITY OF ARIZONA; BRADLEY O'DONNELL CHRISTOFFERSEN, UNIVERSITY OF TEXAS RIO GRANDE VALLEY; MARCOS LONGO, LAWRENCE BERKELEY NATIONAL LABORATORY; LUCIANA F. ALVES, UNIVERSITY OF CALIFORNIA LOS ANGELES; KLEBER SILVA CAMPOS, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; ALESSANDRO CARIOCA DE ARAUJO, CPATU; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; NEILL PROHASKA, UNIVERSITY OF ARIZONA; RODRIGO DA SILVA, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; RAPHAEL TAPAJOS, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ; KENIA T. WIEDEMANN, HARVARD UNIVERSITY; STEVEN C. WOFSY, HARVARD UNIVERSITY; SCOTT R. SALESKA, UNIVERSITY OF ARIZONA. |
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Título: |
Asymmetric response of Amazon forest water and energy fluxes to wet and dry hydrological extremes reveals onset of a local drought-induced tipping point. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Global Change Biology, v. 29, n. 21, p. 6077-6092, Nov. 2023. |
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DOI: |
10.1111/gcb.16933 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding the effects of intensification of Amazon basin hydrological cycling manifest as increasingly frequent floods and droughts'on water and energy cycles of tropical forests is essential to meeting the challenge of predicting ecosystem responses to climate change, including forest 'tipping points'. Here, we investigated the impacts of hydrological extremes on forest function using 12+ years of observations (between 2001-2020) of water and energy fluxes from eddy covariance, along with associated ecological dynamics from biometry, at the Tapajós National Forest. Measurements encompass the strong 2015-2016 El Niño drought and La Niña 2008-2009 wet events. We found that the forest responded strongly to El Niño-Southern Oscillation (ENSO): Drought reduced water availability for evapotranspiration (ET) leading to large increases in sensible heat fluxes (H). Partitioning ET by an approach that assumes transpiration (T) is proportional to photosynthesis, we found that water stress-induced reductions in canopy conductance (Gs) drove T declines partly compensated by higher evaporation (E). By contrast, the abnormally wet La Niña period gave higher T and lower E, with little change in seasonal ET. Both El Niño-Southern Oscillation (ENSO) events resulted in changes in forest structure, manifested as lower wet-season leaf area index. However, only during El Niño 2015-2016, we observed a breakdown in the strong meteorological control of transpiration fluxes (via energy |
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Palavras-Chave: |
Água e sazonalidade do fluxo de energia; Ecosystem-climate interactions; ENSO; Interações ecossistema-clima; Water and energy flux seasonality. |
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Thesagro: |
Água; Floresta Tropical. |
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Thesaurus NAL: |
Amazonia; Eddy covariance; Tropical forests. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02746naa a2200397 a 4500
001 2157088
005 2023-11-13
008 2023 bl uuuu u00u1 u #d
024 7 $a10.1111/gcb.16933$2DOI
100 1 $aRESTREPO-COUPE, N.
245 $aAsymmetric response of Amazon forest water and energy fluxes to wet and dry hydrological extremes reveals onset of a local drought-induced tipping point.$h[electronic resource]
260 $c2023
520 $aUnderstanding the effects of intensification of Amazon basin hydrological cycling manifest as increasingly frequent floods and droughts'on water and energy cycles of tropical forests is essential to meeting the challenge of predicting ecosystem responses to climate change, including forest 'tipping points'. Here, we investigated the impacts of hydrological extremes on forest function using 12+ years of observations (between 2001-2020) of water and energy fluxes from eddy covariance, along with associated ecological dynamics from biometry, at the Tapajós National Forest. Measurements encompass the strong 2015-2016 El Niño drought and La Niña 2008-2009 wet events. We found that the forest responded strongly to El Niño-Southern Oscillation (ENSO): Drought reduced water availability for evapotranspiration (ET) leading to large increases in sensible heat fluxes (H). Partitioning ET by an approach that assumes transpiration (T) is proportional to photosynthesis, we found that water stress-induced reductions in canopy conductance (Gs) drove T declines partly compensated by higher evaporation (E). By contrast, the abnormally wet La Niña period gave higher T and lower E, with little change in seasonal ET. Both El Niño-Southern Oscillation (ENSO) events resulted in changes in forest structure, manifested as lower wet-season leaf area index. However, only during El Niño 2015-2016, we observed a breakdown in the strong meteorological control of transpiration fluxes (via energy
650 $aAmazonia
650 $aEddy covariance
650 $aTropical forests
650 $aÁgua
650 $aFloresta Tropical
653 $aÁgua e sazonalidade do fluxo de energia
653 $aEcosystem-climate interactions
653 $aENSO
653 $aInterações ecossistema-clima
653 $aWater and energy flux seasonality
700 1 $aCHRISTOFFERSEN, B. O.
700 1 $aLONGO, M.
700 1 $aALVES, L. F.
700 1 $aCAMPOS, K. S.
700 1 $aARAUJO, A. C. de
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aPROHASKA, N.
700 1 $aSILVA, R. da
700 1 $aTAPAJOS, R.
700 1 $aWIEDEMANN, K. T.
700 1 $aWOFSY, S. C.
700 1 $aSALESKA, S. R.
773 $tGlobal Change Biology$gv. 29, n. 21, p. 6077-6092, Nov. 2023.
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