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Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
25/03/2011 |
Data da última atualização: |
15/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MOTA, G. B.; BATISTA, R. I. T. P.; SERAPIÃO, R. V.; BOITE, M. C.; VIANA, J. H. M. |
Afiliação: |
Gustavo Bruno Mota, UFV; RIBRIO IVAN TAVARES PEREIRA BATISTA, UNIVERSIDADE ESTADUAL DO CEARÁ; RAQUEL VARELA SERAPIAO, PESAGRO - RIO; MARIANA CORTES BOITE, UFF; JOAO HENRIQUE MOREIRA VIANA, CNPGL. |
Título: |
Developmental competence and expression of the MATER and ZAR1 genes in immature bovine oocytes selected by brilliant cresyl blue. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Zygote, v. 18, n. 3, p. 209-216, 2010. |
DOI: |
https://doi.org/10.1017/S0967199409990219 |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to evaluate the selection of immature bovine oocytes by brilliant cresyl blue dye (BCB) and expression of transcripts MATER and ZAR1. Cumulus–oocyte complexes (COCs) from slaughterhouse ovaries were exposed to BCB diluted in mDPBS and incubated for 60 min at 38.5 °C in humidified air. After exposure those COCs were distributed in two groups, according to their cytoplasm colour: BCB+ (coloured cytoplasm) or BCB− (colourless cytoplasm). The control group was submitted to in vitro maturation (IVM) immediately after morphological selection and holding control group COCs were exposed to mDPBS without BCB but in the same incubation conditions of BCB+ and BCB− group. The COCs of all groups were submitted to IVM, in vitro fertilization (IVF) and in vitro culture (IVC). Cleavage rate (72 h post-insemination) was similar between control (65.3%) and BCB+ (64.4%) groups, but greater than (p < 0.05) holding control (49.8%) and BCB− (51.3%) groups. Blastocyst rate (192 h post-insemination) was not different between BCB+ (18.5%) and control (16.3%) groups, but greater (p < 0.05) than BCB− (8.4%) group. No difference was found for blastocyst rate between holding control group (14.2%), control and BCB+ groups. The relative expression of MATER and ZAR1 genes was evaluated by real-time PCR in immature oocytes collected from the control, holding control, BCB+ and BCB− groups. Despite the relative expression of MATER in holding control, BCB+ and BCB− were down regulated in comparison to control group there was no statistical difference (p > 0.05) in the relative expression of MATER and ZAR1 transcripts among groups. The results indicate that the BCB dye detects immature oocyte populations with different developmental competence, although no improvement in in vitro embryo production using oocytes exposed or not to BCB was observed. Development competence of immature oocytes exposed to BCB does not seem to be associated with variations in the expression of MATER and ZAR1 transcripts. MenosThe objective of this work was to evaluate the selection of immature bovine oocytes by brilliant cresyl blue dye (BCB) and expression of transcripts MATER and ZAR1. Cumulus–oocyte complexes (COCs) from slaughterhouse ovaries were exposed to BCB diluted in mDPBS and incubated for 60 min at 38.5 °C in humidified air. After exposure those COCs were distributed in two groups, according to their cytoplasm colour: BCB+ (coloured cytoplasm) or BCB− (colourless cytoplasm). The control group was submitted to in vitro maturation (IVM) immediately after morphological selection and holding control group COCs were exposed to mDPBS without BCB but in the same incubation conditions of BCB+ and BCB− group. The COCs of all groups were submitted to IVM, in vitro fertilization (IVF) and in vitro culture (IVC). Cleavage rate (72 h post-insemination) was similar between control (65.3%) and BCB+ (64.4%) groups, but greater than (p < 0.05) holding control (49.8%) and BCB− (51.3%) groups. Blastocyst rate (192 h post-insemination) was not different between BCB+ (18.5%) and control (16.3%) groups, but greater (p < 0.05) than BCB− (8.4%) group. No difference was found for blastocyst rate between holding control group (14.2%), control and BCB+ groups. The relative expression of MATER and ZAR1 genes was evaluated by real-time PCR in immature oocytes collected from the control, holding control, BCB+ and BCB− groups. Despite the relative expression of MATER in holding control, BCB+ and BCB− were down regu... Mostrar Tudo |
Palavras-Chave: |
Brilliant cresyl blue. |
Thesaurus Nal: |
gene expression; in vitro fertilization; oocytes. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02786naa a2200229 a 4500 001 1883077 005 2024-02-15 008 2010 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1017/S0967199409990219$2DOI 100 1 $aMOTA, G. B. 245 $aDevelopmental competence and expression of the MATER and ZAR1 genes in immature bovine oocytes selected by brilliant cresyl blue.$h[electronic resource] 260 $c2010 520 $aThe objective of this work was to evaluate the selection of immature bovine oocytes by brilliant cresyl blue dye (BCB) and expression of transcripts MATER and ZAR1. Cumulus–oocyte complexes (COCs) from slaughterhouse ovaries were exposed to BCB diluted in mDPBS and incubated for 60 min at 38.5 °C in humidified air. After exposure those COCs were distributed in two groups, according to their cytoplasm colour: BCB+ (coloured cytoplasm) or BCB− (colourless cytoplasm). The control group was submitted to in vitro maturation (IVM) immediately after morphological selection and holding control group COCs were exposed to mDPBS without BCB but in the same incubation conditions of BCB+ and BCB− group. The COCs of all groups were submitted to IVM, in vitro fertilization (IVF) and in vitro culture (IVC). Cleavage rate (72 h post-insemination) was similar between control (65.3%) and BCB+ (64.4%) groups, but greater than (p < 0.05) holding control (49.8%) and BCB− (51.3%) groups. Blastocyst rate (192 h post-insemination) was not different between BCB+ (18.5%) and control (16.3%) groups, but greater (p < 0.05) than BCB− (8.4%) group. No difference was found for blastocyst rate between holding control group (14.2%), control and BCB+ groups. The relative expression of MATER and ZAR1 genes was evaluated by real-time PCR in immature oocytes collected from the control, holding control, BCB+ and BCB− groups. Despite the relative expression of MATER in holding control, BCB+ and BCB− were down regulated in comparison to control group there was no statistical difference (p > 0.05) in the relative expression of MATER and ZAR1 transcripts among groups. The results indicate that the BCB dye detects immature oocyte populations with different developmental competence, although no improvement in in vitro embryo production using oocytes exposed or not to BCB was observed. Development competence of immature oocytes exposed to BCB does not seem to be associated with variations in the expression of MATER and ZAR1 transcripts. 650 $agene expression 650 $ain vitro fertilization 650 $aoocytes 653 $aBrilliant cresyl blue 700 1 $aBATISTA, R. I. T. P. 700 1 $aSERAPIÃO, R. V. 700 1 $aBOITE, M. C. 700 1 $aVIANA, J. H. M. 773 $tZygote$gv. 18, n. 3, p. 209-216, 2010.
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Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
07/12/1998 |
Data da última atualização: |
07/12/1998 |
Autoria: |
RESCK, D. V. S.; FIGUEIREDO, M. de S.; FERNANDES, B.; RESENDE, M.; SILVA, T. C. A. da. |
Título: |
Intensidade de perdas de nutrientes em um podzolico vermelho-amarelo, utilizando-se simulador de chuva. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
Revista Brasileira de Ciencia do Solo, Campinas, v.4, p.181-187, 1980. |
Idioma: |
Português |
Conteúdo: |
Com simulador de chuva, foram avaliadas as perdas de nutrientes ocorridas na exurrada, objetivando-se quantifica-las e entender os processos que as regem. Aplicaram-se tres intensidades de chuvas em cada uma das parelas localizadas em um Podzolico Vermelho-Amarelo cambico distrofico fase terraco: a primeira, com 62mm/h durante sessenta minutos; a segunda, com 58mm/h durante trinta minutos, 24 horas apos a primeira chuva, e a terceira, com 112mm/h durante dezoito minutos apos a segunda chuva. As maiores perdas ocorreram com calcio, seguidas de magnesio, potassio, aluminio e fosforo, em quantidades maiores, porem em ordem semelhante a composicao quimica original do solo. As perdas de materia organica devidas a enxurrada foram equivalente a 410kg/ha, correspondendo a 0,9% da materia organica existente no solo. A relacao potassio/calcio do solo, que era originalmente 1:13,5, modificou-se para 1:14, 1:18 e 120 e 1:20 respectivamente apos a aplicacao da primeira, segunda e terceira chuva. As taxas de enriquecimento dos elementos na amostra da enxurrada comecaram a decrescer da primeira para a segunda para a terceira chuva , semelhantemente as perdas de materia organica, enquanto as perdas de solo aumentaram nessa ordem. |
Palavras-Chave: |
Nitosols; Nutrientes; Simulation. |
Thesagro: |
Cerrado; Podzólico Vermelho Amarelo; Simulador de Chuva. |
Thesaurus NAL: |
Luvisols; nutrients; rain; soil. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02037naa a2200289 a 4500 001 1544216 005 1998-12-07 008 1980 bl --- 0-- u #d 100 1 $aRESCK, D. V. S. 245 $aIntensidade de perdas de nutrientes em um podzolico vermelho-amarelo, utilizando-se simulador de chuva. 260 $c1980 520 $aCom simulador de chuva, foram avaliadas as perdas de nutrientes ocorridas na exurrada, objetivando-se quantifica-las e entender os processos que as regem. Aplicaram-se tres intensidades de chuvas em cada uma das parelas localizadas em um Podzolico Vermelho-Amarelo cambico distrofico fase terraco: a primeira, com 62mm/h durante sessenta minutos; a segunda, com 58mm/h durante trinta minutos, 24 horas apos a primeira chuva, e a terceira, com 112mm/h durante dezoito minutos apos a segunda chuva. As maiores perdas ocorreram com calcio, seguidas de magnesio, potassio, aluminio e fosforo, em quantidades maiores, porem em ordem semelhante a composicao quimica original do solo. As perdas de materia organica devidas a enxurrada foram equivalente a 410kg/ha, correspondendo a 0,9% da materia organica existente no solo. A relacao potassio/calcio do solo, que era originalmente 1:13,5, modificou-se para 1:14, 1:18 e 120 e 1:20 respectivamente apos a aplicacao da primeira, segunda e terceira chuva. As taxas de enriquecimento dos elementos na amostra da enxurrada comecaram a decrescer da primeira para a segunda para a terceira chuva , semelhantemente as perdas de materia organica, enquanto as perdas de solo aumentaram nessa ordem. 650 $aLuvisols 650 $anutrients 650 $arain 650 $asoil 650 $aCerrado 650 $aPodzólico Vermelho Amarelo 650 $aSimulador de Chuva 653 $aNitosols 653 $aNutrientes 653 $aSimulation 700 1 $aFIGUEIREDO, M. de S. 700 1 $aFERNANDES, B. 700 1 $aRESENDE, M. 700 1 $aSILVA, T. C. A. da 773 $tRevista Brasileira de Ciencia do Solo, Campinas$gv.4, p.181-187, 1980.
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