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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
04/09/2019 |
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Data da última atualização: |
09/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, R. M. dos; FERNANDO, F. S.; MONTASSIER, M. de F. S.; SILVA, K. R.; LOEPS, P. D.; PAVANI, C.; BORZI, M. M.; OKINO, C. H.; MONTASSIER, H. J. |
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Afiliação: |
Romeu Moreira dos Santos, UNESP; Filipe Santos Fernando, UNESP; Maria de Fátima Silva Montassier, UNESP; Ketherson Rodrigues Silva, UNESP; Priscila Diniz Lopes, UNESP; Caren Pavani, UNESP; Mariana Monezi Borzi, UNESP; CINTIA HIROMI OKINO, CPPSE; Helio José Montassier, UNESP. |
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Título: |
Memory immune responses and protection of chickens against a nephropathogenic infectious bronchitis virus strain by combining live heterologous and inactivated homologous vaccines. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
The Journal of Veterinary Medical Science, v.81, n.4, p.612-619, 2019. |
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DOI: |
10.1292/jvms.18-0065 |
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Idioma: |
Inglês |
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Conteúdo: |
In this study, we evaluated antibody and cell-mediated immune (CMI) responses in the mucosal and systemic compartments and protection against challenge with a nephropathogenic Brazilian (BR-I) strain of infectious bronchitis virus (IBV) in chickens submitted to a vaccination regime comprising a priming dose of heterologous live attenuated Massachusetts vaccine followed by a booster dose of an experimental homologous inactivated vaccine two weeks later. This immunization protocol elicited significant increases in serum and lachrymal levels of anti-IBV IgG antibodies and upregulated the expression of CMI response genes, such as those encoding CD8? chain and Granzyme homolog A in tracheal and kidney tissues at 3, 7, and 11 days post-infection in the vaccinated chickens. Additionally, vaccinated and challenged chickens showed reduced viral loads and microscopic lesion counts in tracheal and kidney tissues, and their antibody and CMI responses were negatively correlated with viral loads in the trachea and kidney. In conclusion, the combination of live attenuated vaccine containing the Massachusetts strain with a booster dose of an inactivated vaccine, containing a BR-I IBV strain, confers effective protection against infection with nephropathogenic homologous IBV strain because of the induction of consistent memory immune responses mediated by IgG antibodies and TCD8 cells in the mucosal and systemic compartments of chickens submitted to this vaccination regime. |
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Palavras-Chave: |
Cell mediated immunity; Oil adjuvant. |
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Thesaurus Nal: |
Avian coronavirus; Humoral immunity; Mucosal immunity. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1111878/1/MemoryImmuneResponses.pdf
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Marc: |
LEADER 02441naa a2200289 a 4500
001 2111878
005 2020-01-09
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1292/jvms.18-0065$2DOI
100 1 $aSANTOS, R. M. dos
245 $aMemory immune responses and protection of chickens against a nephropathogenic infectious bronchitis virus strain by combining live heterologous and inactivated homologous vaccines.$h[electronic resource]
260 $c2019
520 $aIn this study, we evaluated antibody and cell-mediated immune (CMI) responses in the mucosal and systemic compartments and protection against challenge with a nephropathogenic Brazilian (BR-I) strain of infectious bronchitis virus (IBV) in chickens submitted to a vaccination regime comprising a priming dose of heterologous live attenuated Massachusetts vaccine followed by a booster dose of an experimental homologous inactivated vaccine two weeks later. This immunization protocol elicited significant increases in serum and lachrymal levels of anti-IBV IgG antibodies and upregulated the expression of CMI response genes, such as those encoding CD8? chain and Granzyme homolog A in tracheal and kidney tissues at 3, 7, and 11 days post-infection in the vaccinated chickens. Additionally, vaccinated and challenged chickens showed reduced viral loads and microscopic lesion counts in tracheal and kidney tissues, and their antibody and CMI responses were negatively correlated with viral loads in the trachea and kidney. In conclusion, the combination of live attenuated vaccine containing the Massachusetts strain with a booster dose of an inactivated vaccine, containing a BR-I IBV strain, confers effective protection against infection with nephropathogenic homologous IBV strain because of the induction of consistent memory immune responses mediated by IgG antibodies and TCD8 cells in the mucosal and systemic compartments of chickens submitted to this vaccination regime.
650 $aAvian coronavirus
650 $aHumoral immunity
650 $aMucosal immunity
653 $aCell mediated immunity
653 $aOil adjuvant
700 1 $aFERNANDO, F. S.
700 1 $aMONTASSIER, M. de F. S.
700 1 $aSILVA, K. R.
700 1 $aLOEPS, P. D.
700 1 $aPAVANI, C.
700 1 $aBORZI, M. M.
700 1 $aOKINO, C. H.
700 1 $aMONTASSIER, H. J.
773 $tThe Journal of Veterinary Medical Science$gv.81, n.4, p.612-619, 2019.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/12/1995 |
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Data da última atualização: |
01/06/2006 |
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Autoria: |
NEUMAIER, N. |
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Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
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Título: |
Characteristics related to differences in yield among soybean cultivars. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Columbia: University of Missouri, 1982. |
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Páginas: |
69p. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
Soybean [Glycine max (L.) Merrill] yields can be associated with physiological, morphological, or developmental characteristics. A three-year study was conducted to examine characteristics related to yield differences among soybean cultivars. For the first experiment, two high-yielding (Williams and Matsoy) and two low-yielding (Illini and Dunfield) cultivars were selected for study. Leaf-specific dry weight, length of the flowering-maturity period, and acetylene reduction (AR) activity at the end of the growing season differed among cultivars and were positively related to yield, while leaf area index and length of the emergence-flowering period were negatively associated with yield. Matsoy and Dunfield were selected for a grafting experiment in which the relative importance of roots and shoots, as determinants of characteristics associated with yield, was studied. Although the genotype of the shoot determined yield components, final yield was equally dependent on roots and shoots. AR rates were under the control of the roots, and as in the first experiment, Matsoy showed higher AR rates than Dunfield at the end of the growing season. However, the differences in the AR rates were not translated into differences in above-ground plant N content or above-ground DW at maturity. Matsoy flowered nine days earlier and matured four days later than Dunfield. In an attempt to test the importance of N2 fixation (AR activity) in determining yields, a third experiment was established. The soybean cultivars Matsoy and ... MenosSoybean [Glycine max (L.) Merrill] yields can be associated with physiological, morphological, or developmental characteristics. A three-year study was conducted to examine characteristics related to yield differences among soybean cultivars. For the first experiment, two high-yielding (Williams and Matsoy) and two low-yielding (Illini and Dunfield) cultivars were selected for study. Leaf-specific dry weight, length of the flowering-maturity period, and acetylene reduction (AR) activity at the end of the growing season differed among cultivars and were positively related to yield, while leaf area index and length of the emergence-flowering period were negatively associated with yield. Matsoy and Dunfield were selected for a grafting experiment in which the relative importance of roots and shoots, as determinants of characteristics associated with yield, was studied. Although the genotype of the shoot determined yield components, final yield was equally dependent on roots and shoots. AR rates were under the control of the roots, and as in the first experiment, Matsoy showed higher AR rates than Dunfield at the end of the growing season. However, the differences in the AR rates were not translated into differences in above-ground plant N content or above-ground DW at maturity. Matsoy flowered nine days earlier and matured four days later than Dunfield. In an attempt to test the importance of N2 fixation (AR activity) in determining yields, a third experiment was established. T... Mostrar Tudo |
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Palavras-Chave: |
Cultivar; EUA; Soybean; USA; Variety; Yield. |
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Thesagro: |
Fisiologia; Rendimento; Soja. |
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Thesaurus NAL: |
physiology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02134nam a2200253 a 4500
001 1459143
005 2006-06-01
008 1982 bl uuuu m 00u1 u #d
100 1 $aNEUMAIER, N.
245 $aCharacteristics related to differences in yield among soybean cultivars.
260 $aColumbia: University of Missouri$c1982
300 $a69p.
500 $aPh.D. Thesis.
520 $aSoybean [Glycine max (L.) Merrill] yields can be associated with physiological, morphological, or developmental characteristics. A three-year study was conducted to examine characteristics related to yield differences among soybean cultivars. For the first experiment, two high-yielding (Williams and Matsoy) and two low-yielding (Illini and Dunfield) cultivars were selected for study. Leaf-specific dry weight, length of the flowering-maturity period, and acetylene reduction (AR) activity at the end of the growing season differed among cultivars and were positively related to yield, while leaf area index and length of the emergence-flowering period were negatively associated with yield. Matsoy and Dunfield were selected for a grafting experiment in which the relative importance of roots and shoots, as determinants of characteristics associated with yield, was studied. Although the genotype of the shoot determined yield components, final yield was equally dependent on roots and shoots. AR rates were under the control of the roots, and as in the first experiment, Matsoy showed higher AR rates than Dunfield at the end of the growing season. However, the differences in the AR rates were not translated into differences in above-ground plant N content or above-ground DW at maturity. Matsoy flowered nine days earlier and matured four days later than Dunfield. In an attempt to test the importance of N2 fixation (AR activity) in determining yields, a third experiment was established. The soybean cultivars Matsoy and ...
650 $aphysiology
650 $aFisiologia
650 $aRendimento
650 $aSoja
653 $aCultivar
653 $aEUA
653 $aSoybean
653 $aUSA
653 $aVariety
653 $aYield
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Embrapa Soja (CNPSO) |
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