Physiologic Maturation
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. ASPECTOS FISIOLÃGICOS E BIOQUÃMICOS DA MATURAÃÃO DE SEMENTES DE PIMENTÃO. / Physiological and biochemical aspects of the maturation of sweet pepper seeds
The determination of the appropriate point or interval for the harvest of fruits for sweet pepper seed production is fundamental for success in production programming, as well as for obtaining quality seeds. From their physiological maturity period up to the moment they are used for sowing, the seeds are subject to loss of physiological quality due to the oc
Publicado em: 2009
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2. Interferência da dessecação, da época de colheita, do tratamento fungicida e do armazenamento na qualidade das sementes de girassol / The interference of desiccation, harvest time, fungicide treatment and storage on the quality of sunflower seeds
O presente trabalho foi realizado com o objetivo de avaliar a interferência da dessecação e da época de colheita na qualidade da semente do girassol. O experimento foi conduzido em área comercial, para produção de sementes do híbrido de girassol Helio 251, da empresa Helianthus do Brasil, no município de Conceição das Alagoas-MG, durante a safra 2
Publicado em: 2008
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3. In vitro culture and somatic embryogenesis of zygotic embryos of macaúba (Acrocomia aculeata (Jacq). Loddiges) / Cultivo in vitro e embriogênese somática de embriões zigóticos de macaúba (Acrocomia aculeata (Jacq). Loddiges)
The objectives of this work were to propose the proceeds regarding the culture of embryos and induction of somatic embryogenesis of the Acrocomia aculeata palm tree using as explants source the mature and immature zygotic embryos. In the in vitro embryo culture the following were studied: a) the effect of the incubation conditions and of the activated charco
Publicado em: 2008
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4. Maturation of corn seeds: physical, biochemical and physiological aspects. / MaturaÃÃo de sementes de milho:aspectos fÃsicos,bioquÃmicos e fisiolÃgicos
Sementes de milho podem ser colhidas em espigas, com altos teores de Ãgua, a partir do momento em que atingem altos nÃveis de qualidade. No presente trabalho estudou-se a maturaÃÃo de sementes de hÃbridos de milho, por meio da colheita em diferentes estÃdios âde linha de leiteâ, avaliando caracterÃsticas fÃsicas, bioquÃmicas e fisiolÃgicas indica
Publicado em: 2007
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5. Rendimento e qualidade de sementes de frutos de tomate em diferentes estÃdios de maturaÃÃo produzidos nos sistemas hidropÃnico e convencional / Productiveness and quality of seeds of tomatoe in different periods of maturation produced in the hydroponic and conventional systems
The NFT - Nutriente Film Technique - has contributed to the dissemination of the commercial hydroponics cultivation all over the world and in Brazil as well. In order to evaluate the efficience of this technique in the production of tomato seeds (Lycopersicon esculentum Mill.), an experiment was conducted at a school-farm of FAZU, in Uberaba, it had been har
Publicado em: 2006
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6. Evidence that androgens are the primary steroids produced by Xenopus laevis ovaries and may signal through the classical androgen receptor to promote oocyte maturation
Steroid-induced maturation of Xenopus oocytes has long served as a model for studying meiosis. Progesterone has been considered the relevant steroid controlling maturation, perhaps through interactions with classical progesterone receptors. In this study, we provide evidence that androgens, rather than progesterone, are the physiologic mediators of Xenopus o
The National Academy of Sciences.
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7. Dendritic cell modulation by 1α,25 dihydroxyvitamin D3 and its analogs: A vitamin D receptor-dependent pathway that promotes a persistent state of immaturity in vitro and in vivo
Dendritic cells (DCs) play a central role in regulating immune activation and responses to self. DC maturation is central to the outcome of antigen presentation to T cells. Maturation of DCs is inhibited by physiological levels of 1α,25 dihydroxyvitamin D3 [1α,25(OH)2D3] and a related analog, 1α,25(OH)2-16-ene-23-yne-26,27-hexafluoro-19-nor-vitamin
The National Academy of Sciences.
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8. Prenatal glucocorticoid therapy reverses pulmonary immaturity in congenital diaphragmatic hernia in fetal sheep.
OBJECTIVE: To assess the feasibility of conducting clinical trials of prenatal steroid therapy for congenital diaphragmatic hernia (CDH) in humans, the authors tested whether prenatal glucocorticoid, currently the standard treatment to minimize respiratory distress syndrome in premature infants, might improve the pulmonary immaturity in severe CDH in a large
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9. Tissue factor activity. A marker of alveolar macrophage maturation in rabbits. Effects of granulomatous pneumonitis.
Experiments were carried out to examine relationships between alveolar macrophage maturity and amounts of tissue factor (Clotting Factor III) in these cells under physiologic conditions and during immunologically induced pneumonitis. Using discontinuous density gradient centrifugation, alveolar macrophages from healthy rabbits were rapidly isolated into five
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10. Glucocorticoid levels in maternal and cord serum after prenatal betamethasone therapy to prevent respiratory distress syndrome.
Serum glucocorticoid levels were determined in 20 mothers and 43 premature infants who received prenatal betamethasone therapy for prevention of respiratory distress syndrome (RDS). Maternal betamethasone peaked at 75 microg cortisol equivalents per 100 ml 1 h after injection of 12 mg steroid and declined to half by 6 h. Betamethasone in cord blood was 14.3
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11. Neutrophil Elastase Is Important for PML-Retinoic Acid Receptor α Activities in Early Myeloid Cells
Expression of the PML-retinoic acid receptor α (PML-RARα) fusion protein is the initiating genetic event for acute promyelocytic leukemia (APL), but the molecular mechanisms responsible for disease initiation are not yet clear. Several observations have suggested that early myeloid cells are uniquely susceptible to transformation by PML-RARα. Recently, we
American Society for Microbiology.
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12. Interleukin 1 is processed and released during apoptosis.
Interleukin (IL-) 1 alpha and 1 beta are synthesized as 31- to 34-kDa pro molecules. They are released from monocytes and macrophages as proteolytically processed 17-kDa mature molecules that bind with high affinity to specific receptors on target cells. IL-1 is not released via the classic secretory pathway. The pro molecules are synthesized as cytosolic pr