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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
08/08/2023 |
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Data da última atualização: |
08/08/2023 |
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Tipo da produção científica: |
Autoria/Organização/Edição de Livros |
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Autoria: |
EMBRAPA AMAZÔNIA OCIDENTAL. |
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Título: |
Relatório anual de transferência de tecnologia 2022. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Manaus, 2023. |
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Páginas: |
87 p. |
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Idioma: |
Português |
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Conteúdo: |
Organização da Área de Transferência de Tecnologia. Soluções Tecnológicas Disponibilizadas pela Unidade. Ações de Transferência de Tecnologia Realizadas em 2022. Ações de Destaque. Prospecção de Demandas para Pesquisa e Transferência de Tecnologia. Avaliação de Impacto das Tecnologias. Aipim Manteiga (Manihot esculenta Crantz). Recomendação de aplicação de fungicida para controle químico da sigatoka-negra na produção de banana na Amazônia Ocidental. Cultivar de açaizeiro BRS Pará. Produção intensiva de tambaqui em tanques escavados com aeração. Cultivar BRS Maués.Projetos de transferência de tecnologia vigentes no ano de 2022. Acordos e contratos de cooperação técnica vigentes em 2022 para transferência de tecnologia. Cultivares desenvolvidas ou recomendadas para o cultivo pela Embrapa Amazônia Ocidental. Práticas, processos e sistemas de produção recomendados pela Embrapa Amazônia Ocidental. Equipamentos desenvolvidos pela Embrapa Amazônia Ocidental ou por parceiros com a participação da Unidade. |
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Thesagro: |
Agricultura; Instituição de Pesquisa; Pesquisa; Transferência de Tecnologia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155770/1/Relatorio-TT-2022-final.pdf
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Marc: |
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008 2023 bl uuuu t 00u1 u #d
100 1 $aEMBRAPA AMAZÔNIA OCIDENTAL.
245 $aRelatório anual de transferência de tecnologia 2022.$h[electronic resource]
260 $aManaus$c2023
300 $a87 p.
520 $aOrganização da Área de Transferência de Tecnologia. Soluções Tecnológicas Disponibilizadas pela Unidade. Ações de Transferência de Tecnologia Realizadas em 2022. Ações de Destaque. Prospecção de Demandas para Pesquisa e Transferência de Tecnologia. Avaliação de Impacto das Tecnologias. Aipim Manteiga (Manihot esculenta Crantz). Recomendação de aplicação de fungicida para controle químico da sigatoka-negra na produção de banana na Amazônia Ocidental. Cultivar de açaizeiro BRS Pará. Produção intensiva de tambaqui em tanques escavados com aeração. Cultivar BRS Maués.Projetos de transferência de tecnologia vigentes no ano de 2022. Acordos e contratos de cooperação técnica vigentes em 2022 para transferência de tecnologia. Cultivares desenvolvidas ou recomendadas para o cultivo pela Embrapa Amazônia Ocidental. Práticas, processos e sistemas de produção recomendados pela Embrapa Amazônia Ocidental. Equipamentos desenvolvidos pela Embrapa Amazônia Ocidental ou por parceiros com a participação da Unidade.
650 $aAgricultura
650 $aInstituição de Pesquisa
650 $aPesquisa
650 $aTransferência de Tecnologia
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/02/2017 |
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Data da última atualização: |
30/01/2023 |
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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: |
PAES, V. M.; VIEIRA, L. A.; CORREIA, H. H. V.; SA, N. A. R.; MOURA, A. A. A.; SALES, A. D.; RODRIGUES, A. P. R.; MAGALHÃES-PADILHA, D. M.; SANTOS, F. W.; APGAR, G. A.; CAMPELLO, C. C.; CAMARGO, L. S. de A.; FIGUEIREDO, J. R. |
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Afiliação: |
V. M. Paes, LAMOFOPA - CE; L. A. Vieira, LAMOFOPA - CE; H. H. V. Correia, LAMOFOPA - CE; N. A. R. Sa, LAMOFOPA - CE; A. A. A. Moura, Universidade Federal do Ceará; A. D. Sales, LAMOFOPA - CE; A. P. R. Rodrigues, LAMOFOPA - CE; D. M. Magalhães-Padilha, Universidade Potiguar; F. W. Santos, Universidade Estadual do Pampa; G. A. Apgar, Southern Illinois University, Carbondale, Illinois, USA; C. C. Campello, LAMOFOPA - CE; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL; J. R. Figueiredo, LAMOFOPA - CE. |
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Título: |
Effect of heat stress on the survival and development of in vitro cultured bovine preantral follicles and on in vitro maturation of cumulus-oocyte complex. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Theriogenology, n. 86, p. 994-1003, 2016. |
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Idioma: |
Português |
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Conteúdo: |
Abstract The deleterious effect of heat stress (HS) on competence of oocytes from antral follicles is well recognized, but there is a lack of data regarding its impact on the viability and growth of preantral follicles. In this study, we used in vitro preantral follicle cultures to investigate the effects of HS on the following parameters: survival and development of primordial follicles after in vitro culture of ovarian fragments (experiment I); growth and antrum formation of isolated advanced secondary follicles (experiment II); and maturation rates after in vitro maturation (IVM) of cumulus?oocyte complexes (COCs) from antral follicles (>2?6 mm) grown in vivo (experiment III). Furthermore, the following end points were evaluated in all experiments: follicle/oocyte survival, reactive oxygen species (ROS), estradiol (E2) and progesterone (P4) production, as well asmRNA expression for select genes related to stress (HSP70) and apoptosis (MCL1 and BAX). In all experiments, HS consisted of exposing the structures (ovarian fragments, isolated preantral follicles and COCs) to 41 C for 12 hours and then to 38.5 C until the end of the culture (7 days for experiments I and II and 24 hours for experiment III). The temperature for the control group was held at 38.5 C for the entire culture period. Heat stress increased (P < 0.05) the percentage of developing follicles (intermediate, primary, and secondary follicles) at 12 hours and increased levels of ROS at all evaluated time points (12, 24 hours, and D7), when compared to the control (experiment I). Heat stress did not affect (P > 0.05) any identified end points when preantral follicles were cultured in their isolated form (experiment II). However, in experiment III, HS decreased (P < 0.05) both the rates of metaphase II after 24 hours and E2 production at 12 hours of IVM. Moreover, HS increased (P < 0.0001) levels of P4 after IVM and ROS production at every evaluated time point, compared with the control (12 and 24 hours). In conclusion, HS caused: (1) early activation of primordial follicles; (2) an increase in ROS production by early preantral follicles enclosed in ovarian tissue and by COCs; (3) a short-term reduction of E2 production by COCs; and (4) an increase in P4 secretion from COCs. However, HS did not affectin vitro culture of advanced isolated secondary follicles. Experimental evidence indicates that preantral follicles are less sensitive to HS than COC. MenosAbstract The deleterious effect of heat stress (HS) on competence of oocytes from antral follicles is well recognized, but there is a lack of data regarding its impact on the viability and growth of preantral follicles. In this study, we used in vitro preantral follicle cultures to investigate the effects of HS on the following parameters: survival and development of primordial follicles after in vitro culture of ovarian fragments (experiment I); growth and antrum formation of isolated advanced secondary follicles (experiment II); and maturation rates after in vitro maturation (IVM) of cumulus?oocyte complexes (COCs) from antral follicles (>2?6 mm) grown in vivo (experiment III). Furthermore, the following end points were evaluated in all experiments: follicle/oocyte survival, reactive oxygen species (ROS), estradiol (E2) and progesterone (P4) production, as well asmRNA expression for select genes related to stress (HSP70) and apoptosis (MCL1 and BAX). In all experiments, HS consisted of exposing the structures (ovarian fragments, isolated preantral follicles and COCs) to 41 C for 12 hours and then to 38.5 C until the end of the culture (7 days for experiments I and II and 24 hours for experiment III). The temperature for the control group was held at 38.5 C for the entire culture period. Heat stress increased (P < 0.05) the percentage of developing follicles (intermediate, primary, and secondary follicles) at 12 hours and increased levels of ROS at all evaluated time points... Mostrar Tudo |
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Palavras-Chave: |
Bovine; Oocyte; Preantral follicle. |
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Thesaurus NAL: |
heat stress; in vitro culture. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03440naa a2200325 a 4500
001 2062969
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aPAES, V. M.
245 $aEffect of heat stress on the survival and development of in vitro cultured bovine preantral follicles and on in vitro maturation of cumulus-oocyte complex.$h[electronic resource]
260 $c2016
520 $aAbstract The deleterious effect of heat stress (HS) on competence of oocytes from antral follicles is well recognized, but there is a lack of data regarding its impact on the viability and growth of preantral follicles. In this study, we used in vitro preantral follicle cultures to investigate the effects of HS on the following parameters: survival and development of primordial follicles after in vitro culture of ovarian fragments (experiment I); growth and antrum formation of isolated advanced secondary follicles (experiment II); and maturation rates after in vitro maturation (IVM) of cumulus?oocyte complexes (COCs) from antral follicles (>2?6 mm) grown in vivo (experiment III). Furthermore, the following end points were evaluated in all experiments: follicle/oocyte survival, reactive oxygen species (ROS), estradiol (E2) and progesterone (P4) production, as well asmRNA expression for select genes related to stress (HSP70) and apoptosis (MCL1 and BAX). In all experiments, HS consisted of exposing the structures (ovarian fragments, isolated preantral follicles and COCs) to 41 C for 12 hours and then to 38.5 C until the end of the culture (7 days for experiments I and II and 24 hours for experiment III). The temperature for the control group was held at 38.5 C for the entire culture period. Heat stress increased (P < 0.05) the percentage of developing follicles (intermediate, primary, and secondary follicles) at 12 hours and increased levels of ROS at all evaluated time points (12, 24 hours, and D7), when compared to the control (experiment I). Heat stress did not affect (P > 0.05) any identified end points when preantral follicles were cultured in their isolated form (experiment II). However, in experiment III, HS decreased (P < 0.05) both the rates of metaphase II after 24 hours and E2 production at 12 hours of IVM. Moreover, HS increased (P < 0.0001) levels of P4 after IVM and ROS production at every evaluated time point, compared with the control (12 and 24 hours). In conclusion, HS caused: (1) early activation of primordial follicles; (2) an increase in ROS production by early preantral follicles enclosed in ovarian tissue and by COCs; (3) a short-term reduction of E2 production by COCs; and (4) an increase in P4 secretion from COCs. However, HS did not affectin vitro culture of advanced isolated secondary follicles. Experimental evidence indicates that preantral follicles are less sensitive to HS than COC.
650 $aheat stress
650 $ain vitro culture
653 $aBovine
653 $aOocyte
653 $aPreantral follicle
700 1 $aVIEIRA, L. A.
700 1 $aCORREIA, H. H. V.
700 1 $aSA, N. A. R.
700 1 $aMOURA, A. A. A.
700 1 $aSALES, A. D.
700 1 $aRODRIGUES, A. P. R.
700 1 $aMAGALHÃES-PADILHA, D. M.
700 1 $aSANTOS, F. W.
700 1 $aAPGAR, G. A.
700 1 $aCAMPELLO, C. C.
700 1 $aCAMARGO, L. S. de A.
700 1 $aFIGUEIREDO, J. R.
773 $tTheriogenology$gn. 86, p. 994-1003, 2016.
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