Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 40
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Gap junction modulation by extracellular signaling molecules: the thymus model BJMBR
Alves,L.A.; Nihei,O.K.; Fonseca,P.C.; Campos-de-Carvalho,A.C.; Savino,W..
Gap junctions are intercellular channels which connect adjacent cells and allow direct exchange of molecules of low molecular weight between them. Such a communication has been described as fundamental in many systems due to its importance in coordination, proliferation and differentiation. Recently, it has been shown that gap junctional intercellular communication (GJIC) can be modulated by several extracellular soluble factors such as classical hormones, neurotransmitters, interleukins, growth factors and some paracrine substances. Herein, we discuss some aspects of the general modulation of GJIC by extracellular messenger molecules and more particularly the regulation of such communication in the thymus gland. Additionally, we discuss recent data...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thymus; Thymic epithelial cells; Connexin 43; Hormones; Interleukins.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000400012
Imagem não selecionada

Imprime registro no formato completo
Efeito da suplementação alimentar nas respostas fisiológicas, hormonais e sanguíneas de ovelhas Santa Inês, Ile de France e Texel - DOI: 10.4025/actascianimsci.v31i4.4920 Animal Sciences
Amaral, Daniele Francine; UEM; Barbosa, Orlando Rus; UEM; Gasparino, Eliane; UEM; Akimoto, Luciene Setsuko; UEM; Lourenço, Fábio José; UEM; Santello, Graziela Aparecida; UEM.
Avaliou-se a suplementação de proteína (12% de proteína bruta (PB) (T1) e 16% de PB (T2)) na temperatura retal (TR), frequências respiratória (FR) e cardíaca (FC), glicose (Gl), albumina (Alb), proteínas totais (PT), triiodotironina (T3) e tiroxina (T4) de 16 ovelhas Santa Inês, 16 Texel e 15 Ile de France. A FR não diferiu no T1 e T2 na Santa Inês e Ile de France, sendo maior na Texel no T2. FR aumentou na primavera, na Texel, seguida da Ile de France e pela Santa Inês e caiu no outono para Santa Inês e Ile de France. FR foi maior à tarde, na Texel, na Ile de France e na Santa Inês. Maior FC na Santa Inês e Texel no T1 e menor na Ile de France. FC na Santa Inês foi superior nas estações do ano, e na primavera maior para todas as raças. Maior Gl, PT, Alb e...
Tipo: Pequisa de campo Palavras-chave: Dieta; Proteína; Condições climáticas estresse térmico; Hormônios; Ovelhas Ecologia dos Animais Domésticos e Etologia diet; Protein; Weather conditions; Heat stress; Hormones; Sheep.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4920
Imagem não selecionada

Imprime registro no formato completo
Histological Evaluation of the Induced Endometriosis in Rats, after Treatment with Dexamethasone International Journal of Morphology
Batista,Ana Paula Castor; Conceição,Ana Paula Maria da; Moraes,Eleonora de Figueiredo; Teixeira,Álvaro Aguiar Coelho; Wanderley Teixeira,Valéria.
The present research had the purpose to analyze morphologically the sites of endometrial implants on the external area of the musculature of the anterior abdominal wall of female rats, treated with dexamethasone. For so, these 15 albino female rats were used (Rattus norvegicus albinus), of the lineage Wistar with 90 days of age, that were submitted to the induction of the endometriosis, and divided in the following groups: Group I ­ induced female rats to endometriosis and evaluated after 21 days (control); Group II ­ induced female rats to endometriosis and after 21 days, treated with dexamethasone for 10 days; Group III - induced female rats to endometriosis, and after 21 days, treated with dexamethasone for 15 days. The dexamethasone was administered in...
Tipo: Journal article Palavras-chave: Endometriosis; Dexamethasone; Steriods; Hormones; Metaplasia.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500008
Imagem não selecionada

Imprime registro no formato completo
Abscisic acid and the antioxidant system are involved in germination of Butia capitata seeds Acta Botanica
Bicalho,Elisa Monteze; Santos,Talita R. Silva dos; Garcia,Queila Souza.
ABSTRACT Seed germination is an important step for plants without vegetative propagation and is a physiological process that begins with specific environmental cues resulting in biochemical responses. Breaking-dormancy is necessary to study germination in dormant seeds with asynchronous germination. We investigated the processes of breaking dormancy and germination of Butia capitata (Arecaceae) seeds, in which germination is slow and asynchronous, by operculum removal. This treatment increased germination of B. capitata to 90 %. Embryos of dry, imbibed, 24-hours post-operculum removal and early-germinated seeds were collected for biochemical analysis of the following: quantification of abscisic acid (ABA) and hydrogen peroxide (H2O2), activities of...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Breaking-dormancy; Haustorium; Hormones; Palm seeds; Operculum; Physiological dormancy; Reactive oxygen species.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100174
Imagem não selecionada

Imprime registro no formato completo
ผลของการพอกเมล็ดพันธุ์ร่วมกับฮอร์โมน Gibberellin และ indole-3-butyric acid ต่อคุณภาพเมล็ดพันธุ์ยาสูบพันธุ์เวอร์จิเนียร์ Thai Agricultural
Boonmee Siri; Suriya Trachoo.
Tobacco seeds are very small. This causes difficulty in sowing and resulted in uneven seelings.This experiment aimed to study types and concentrations of hormones for proportion of pelleting tobacco seeds. The experiment was conducted at laboratory of seed quality testing section, Seed Processing Plant, Faculty of Agriculture, Khon Kaen University. The Virginia tobacco seeds were pelleted with pumice, fillers material at the rate 150 g and used hydroxypropyl methylcellulose (HPMC) with concentrations 4 percent by weight as binder material. Two types of hormones, Gibberellin (GA) and Indoie-3-butyric acid (IBA) with four different rates 1, 2, 3, and 4 ml per 3 g of tobacco seeds were used. The tobacco seeds were pelleted by pellet-machine model SKK10. The...
Tipo: PhysicalObject Palavras-chave: Tobacco seed; Virginia variety; Seed pelleting; Adhesive materials; Gibberellin; Indole-3-butyric acid; GA; IBA; Hormones; Filler materials; Aging seed; Germination percentage; Seed vigour; เมล็ดพันธุ์ยาสูบ; พันธุ์เวอร์จิเนียร์; การพอกเมล็ดพันธุ์; ฮอร์โมน; จิบเบอเรลลิน; ออกซิน; วัสดุประสาน; การเร่งอายุเมล็ดพันธุ์; อัตราการงอกของเมล็ดพันธุ์; ความแข็งแรงของเมล็ดพันธุ์.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5726
Imagem não selecionada

Imprime registro no formato completo
Reproductive physiology of mango Braz. J. Plant Physiol.
Davenport,Thomas L..
Mango flowering involves hormonal regulation of shoot initiation and induction events resulting in reproductive shoot formation. A balance or ratio of endogenously regulated phytohormones, thought to be auxin from leaves and cytokinins from roots, appears to govern the initiation cycle independently from inductive influences. Induction of reproductive or vegetative shoots is thought to be governed by the ratio of a temperature-regulated florigenic promoter and an age regulated vegetative promoter at the time of shoot initiation. Management of off-season flowering in mango trees is being accomplished in the tropics by successfully synchronizing shoot initiation through tip pruning and use of nitrate sprays coupled with management of the stem age to induce...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Auxin; Cytokinin; Flowering management; Fruiting; Hormones; Mangifera indica.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400007
Imagem não selecionada

Imprime registro no formato completo
Determination of endogenous IAA and carbohydrates during the induction and development of protocorm-like bodies of Cattleya tigrina A. Richard Biological Sciences
De Conti, Daniela; Corredor-Prado, Jenny Paola; Roecker Junior, Djalma; Suzuki, Rogério Mamoru; Guerra, Miguel Pedro; Pescador, Rosete.
 Tissue culture techniques have been employed for orchid mass propagation by means of the morphogenetic route of protocorm like-bodies (PLBs). This study aimed to analyze and compare Indole-acetic acid (IAA) and sugar endogenous levels in protocorm-like bodies (PLBs) induction and development in Cattleya tigrina, in order to better understand this process and to optimize micropropagation procedure protocols. Leaves grown on MS (Murashige and Skoog) culture medium, suplemented with 9 μM TDZ for PLBs induction and development were collected after 0, 2, 7, 14, 30, 60 and 100 days of cultivation, for further analysis. Increase of IAA and reduction of sugar levels are strongly related to morphogenetic response, that is, PLBs formation over the preexisting ones...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Orchid; Hormones; Sugars; Morphogenesis..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/37874
Imagem não selecionada

Imprime registro no formato completo
Localisation immunohisto chimique de peptides apparentes aux hormones de vertebres chez Pecten maximus ArchiMer
Donval, A.
Substances related to vertebrate peptidic hormones have been searched by immunohistochemical methods in Pecten maximus . Neurosecretory cells have been detected in the nervous ganglia with antisera raised against vertebrate hormones, gastrin/CCK like, glucagon like, insuline like, somatostatine like. Other gastro-intestinal hormones like are localized in some cells of the gut epithelium: bombesine and vasoactive intestinal peptide.
Tipo: Text Palavras-chave: Pecten maximus; Bivalvia; Immunology; Histochemistry; Cells; Neurosecretory system; Juveniles; Hormones.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/1991/acte-1724.pdf
Imagem não selecionada

Imprime registro no formato completo
Hormônios no diagnóstico de problemas reprodutivos. Infoteca-e
ELOY, A. M. X..
O proposito deste trabalho e fornecer maiores esclarecimentos sobre o aspecto pratico das analises hormonais em medicina veterinaria.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Hormônio animal; Reprodução animal; Endocrinologia; Caprino; Ovino.; Hormones; Endocrinology; Reproduction; Goats.; Sheep.
Ano: 1990 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514290
Imagem não selecionada

Imprime registro no formato completo
Utility of basic research in plant/crop physiology in relation to crop improvement: a review and a personal account Braz. J. Plant Physiol.
El-Sharkawy,Mabrouk A..
Agricultural research and development plays an essential role in a nation's economic development, providing for food security for an ever-increasing population. In developed countries, the gap between potential and actual yield is largely closed because of a combination of advanced technologies, high-yielding new varieties and the application of agrochemicals in highly mechanized production systems. In most of these countries, agricultural production exceeds national demand, resulting in excess products for export. In many of the developing countries, however, agricultural productivity is still far below what it should be because of multiple technical and socio-economic constraints. Food deficits are the norm in poor and middle-income countries, requiring...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agriculture; Breeding; C4-photosynthesis; Drought-tolerance; Ecophysiology; Ecosystems; Hormones; Photoperiod; Productivity; Soil; Water stress.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000400001
Imagem não selecionada

Imprime registro no formato completo
Protocolos Embrapa para superovulação de cabras e ovelhas. Infoteca-e
FONSECA, J. F. da; OLIVEIRA, M. E. F..
bitstream/item/221393/1/CNPC-2020-Art.55.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: SOV; Superovulated females; FSH; Caprino; Ovino; Superovulação; Reprodução Animal; Ciclo Estral; Hormônio; Goats; Sheep; Small ruminants; Superovulation; Hormones.
Ano: 2020 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128193
Imagem não selecionada

Imprime registro no formato completo
Performance and hormonal profile in broiler chickens fed with different energy levels during post restriction period PAB
Giachetto,Poliana Fernanda; Guerreiro,Erika Nomura; Ferro,Jesus Aparecido; Ferro,Maria Inês Tiraboschi; Furlan,Renato Luis; Macari,Marcos.
The aim of this work was to investigate the influence of diet energy level on performance and hormonal profiles of broilers during post restriction period. It was a split-plot experiment, and the main treatments were in a 2x2 factorial scheme. Birds were fed restricted to 30% of the ad libitum intake, from 7 to 14 days of age. After the restriction period, birds were fed ad libitum with diets containing low (2,900 kcal ME/kg) or high (3,200 kcal ME/kg) energy until 49 days of age. Broilers fed with high energy ration showed lower feed intake and better feed conversion and decreased carcass protein; however, abdominal fat pad, and total carcass fat were not affected by ration energy levels or feeding program. Neither diet energy level nor feed restriction...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass composition; Weight gain; Hormones; Feeding level.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000600005
Imagem não selecionada

Imprime registro no formato completo
Uso da hCG na indução hormonal da ovulação em cabras. Infoteca-e
GONZALEZ, C. I. M.; MACHADO, R.; SIMPLÍCIO, A. A.; CUNHA, M. das G. G..
bitstream/item/26817/1/COT-25.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Brasil; Nordeste; Northeast.; Caprino; Ovulação; Cabra; Indução; Hormônio animal; Goats; Ovulation; Hormones; Brazil..
Ano: 1991 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514953
Imagem não selecionada

Imprime registro no formato completo
Donnees cytologiques, electrophysiologiques et biochimiques relatives au phenomene de fecondation chez le homard (Homarus gammarus ). Implication du processus d'activation sur le mecanisme d'attache des oeufs pondus ArchiMer
Goudeau, M; Lachaise, F; Kubisz, P; Goudeau, H.
Electrophysiological measurements and related cytological controls were done on immature and submature oocytes of Homarus gammarus . By chromatography (HPLC) and radio-immunoassays (RIA) it was established that submature oocytes displayed different ecdysteroids. Furthermore, the structure of the stalk (funiculus) for the laid eggs attachment was analyzed. it consisted of the two superimposed vitelline envelopes which were likely modified by the cortical reaction exudate during the fertilization process. In addition, the successive secretory phases, regarding to the embryonic envelopes were evidenced. Finally, the ecdysteroid titers of embryonic stages were measured.
Tipo: Text Palavras-chave: Homarus gammarus; Malacostraca; Biological attachment; Hormones; Electrophysiology; Biochemistry; Cytology; Eggs; Embryonic development; Cell membranes; Oocytes; Fecundity; Homard; Decapode; Crustacé; Funicule; Mues embryonnaires; Enveloppe de fécondation; Ecdystéroîdes; Potentiel membranaire; Ovocyte.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/acte-1190.pdf
Imagem não selecionada

Imprime registro no formato completo
Effect of Egg Weight on External and Internal Qualities, Physiological and Hatching Success of Japanese Quail Eggs (Coturnix coturnix japonica) Rev. Bras. Ciênc. Avic.
Hegab,IM; Hanafy,AM.
ABSTRACT This experiment was conducted to evaluate the effect of egg weight and egg physical characteristics on embryonic development, hatchability, and hatchling weight of Japanese quails (Coturnix coturnix japonica). In total, 689 eggs were classified in two categories: small (<13.5 g) or large (≥13.5 g), and different external eggshell and internal quality traits were measured. On days 6 and 14 of incubation, tissue triiodothyronine (T3) and thyroxine (T4) were extracted from embryos in both egg sizes and analyzed. Relative to internal egg-quality traits, large eggs had significantly higher yolk height, yolk diameter, yolk weight, albumen height, and albumen weight than small eggs (p≤0.01). However, Haugh unit score (p=0.27) was not significantly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg size; Egg quality; Hatchability; Hormones; Parameters.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300300
Imagem não selecionada

Imprime registro no formato completo
Caracterización de las condiciones para la micropropagación de Polianthes tuberosa L. a partir de cormo, hoja, flor y yema. Colegio de Postgraduados
Hernández Mendoza, Fanny.
Debido a las tecnologías con que se cuenta en la actualidad es relativamente fácil incrementar la biodiversidad y se considera que dos grupos de técnicas son indispensables para aumentar la variabilidad genética de los cultivos. Las técnicas empleadas para la inducción de mutaciones son las herramientas útiles para incrementar la variabilidad genética y las técnicas de cultivo in vitro permiten la multiplicación rápida de los fenotipos seleccionados. El nardo (Polianthes tuberosa L.) es una planta endémica de México, la importancia de este cultivo radica en que es utilizada como flor de corte así como en la industria farmacéutica y del perfume. Es peculiar que presenta poca variabilidad genética, porque es propagada vegetativamente. En este estudio se...
Palavras-chave: Propagación; Regeneración de plantas; Medio de cultivo; Hormonas; Eficiencia de la regeneración; Contaminación; Regeneration of plantlets; Culture media; Hormones; Contamination; Genética; Maestría; Regeneration efficiency.
Ano: 2013 URL: http://hdl.handle.net/10521/2108
Imagem não selecionada

Imprime registro no formato completo
Caracterización de las condiciones para la micropropagación de Polianthes tuberosa L. a partir de cormo, hoja, flor y yema. Colegio de Postgraduados
Hernández Mendoza, Fanny.
Debido a las tecnologías con que se cuenta en la actualidad es relativamente fácil incrementar la biodiversidad y se considera que dos grupos de técnicas son indispensables para aumentar la variabilidad genética de los cultivos. Las técnicas empleadas para la inducción de mutaciones son las herramientas útiles para incrementar la variabilidad genética y las técnicas de cultivo in vitro permiten la multiplicación rápida de los fenotipos seleccionados. El nardo (Polianthes tuberosa L.) es una planta endémica de México, la importancia de este cultivo radica en que es utilizada como flor de corte así como en la industria farmacéutica y del perfume. Es peculiar que presenta poca variabilidad genética, porque es propagada vegetativamente. En este estudio se...
Palavras-chave: Propagación; Regeneración de plantas; Medio de cultivo; Hormonas; Eficiencia de la regeneración; Contaminación; Regeneration of plantlets; Culture media; Hormones; Regeneration efficiency; Contamination; Genética; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/2331
Imagem não selecionada

Imprime registro no formato completo
Regulation of the Bone Healing Process by Hormones International Journal of Morphology
Issa,Joáo Paulo Mardegan; Tiossi,Rodrigo; Mello,Amaro Sergio da Silva; Iyomasa,Mamie Mizusaki.
The skeleton has several important functions, such as structural functions that provide mobility, support, and protection for the body. It also has an important function as a reservoir for calcium and phosphorus. The aim of this article is to show the principal hormones that are involved with the bone healing process. In this article, it will be pointed the mineral homeostatic mechanisms in the skeleton, controlled by the calcium-regulating hormones: parathyroid hormone (PTH) that maintains the normal extracellular calcium levels by enhancing osteoclastic bone resorption and liberating calcium from the adult skeleton; estrogen, considering that both osteoblasts and osteoclasts express estrogen receptors, it is reasonable to assume that the effects of...
Tipo: Journal article Palavras-chave: Bone; Repair; Hormones.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200025
Imagem não selecionada

Imprime registro no formato completo
Regulation of in vitro somatic embryogenesis with emphasis on to the role of endogenous hormones Rev. Bras. Fisiol. Veg.
JIMÉNEZ,VÍCTOR M..
Different aspects of the in vitro somatic embryogenesis regulation are reviewed in this paper.work. A description of g General aspects, such as terminology, uses, stages of development and factors associated with the somatic embryogenesis, are described. is carried out. Although a brief description ofn the effects of the addition of different plant growth regulators to the culture medium wasis given, the article is centereds itself on the effect that the endogenous hormone concentrations in the initial explants and in the tissue cultures derived from them could play oin the induction and expression of somatic embryogenesis. It is significant that few to emphasize the low amount of systematic studies have been conducted, in this subject, in which different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: In vitro morphogenesis; Embryo regeneration; Embryogenic competence; Plant growth regulators; Hormones.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000200008
Imagem não selecionada

Imprime registro no formato completo
Quelques aspects de la regulation du systeme neuroendocrine produisant la CHH et de la relation entre le rythme circadien et la glycemie ArchiMer
Kallen, J.
In crayfish, the hemolymph glucose level shows an endogenous circadian rhythmicity which is expressed by a nocturnal glucose rise. This study shows that injections of serotonin and dopamine result in hyperglycemia and that injections of met-enkephalin decrease hemolymph glucose level as well as the nocturnal circadian glucose peak. Using immunocytochemistry, these neurotransmitters have been located in the eyestalk and their relationship with the CHH cell system is described.
Tipo: Text Palavras-chave: Orconectes limosus; Astacus leptodactylus; Malacostraca; Cytochemistry; Hormones; Neurotransmitters; Circadian rhythms; Glucose.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/acte-1383.pdf
Registros recuperados: 40
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional