Reproductive Organs
Mostrando 25-36 de 204 artigos, teses e dissertações.
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25. Morphological and morphometrical assessment of spermathecae of Aedes aegypti females
The vectorial capacity of Aedes aegypti is directly influenced by its high reproductive output. Nevertheless, females are restricted to a single mating event, sufficient to acquire enough sperm to fertilize a lifetime supply of eggs. How Ae. aegypti is able to maintain viable spermatozoa remains a mystery. Male spermatozoa are stored within either of two spe
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09
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26. Phenology of the oil palm interspecific hybrid Elaeis oleifera × Elaeis guineensis
Oil palm is one of the most important oil crops in the world. Because of its high productivity and perennial nature, it has been expanding quickly. Commercial plantations consist mostly of the African palm E. guineensis Jacq. However, producers in Latin America are increasingly planting the O × G interspecific hybrid, a cross between African palm (E. guinee
Scientia Agricola. Publicado em: 2012
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27. Receptores do hormônio luteinizante em diferentes porções do oviduto de éguas em estro. / Receptors for luteinizing hormone in different portions of the oviduct of mares in estrus
Embryonic development begins with the fertilization of the egg by the sperm in the oviduct. The oviduct is a tortuous organ which extended measures 20 to 30cm and is divided into three parts: the isthmus, ampulla and infundibulum. Hormones influence the activity of target cells by binding to specific receptor molecules. Immunohistochemistry is the set of pro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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28. Desenvolvimento floral e expressão sexual em espécies de Ficus L. (Moraceae) / Floral development and sex expression in species of Ficus L. (Moraceae)
The absence of reproductive organs in some flowers may ontogenetically arise by organ loss or suppression. Ficus L. is an interesting model for floral developmental studies, due to its diversity in sexual systems. The aim of this study was to compare the morphology of the floral development in Ficus citrifolia (monoecious), F. hispida (gynodioecious), F. rac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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29. Estudios epidérmicos en helechos y licófitas medicinales de la Provincia de Córdoba, Argentina
An epidermal analysis of vegetative and reproductive organs of 28 medicinal ferns from Córdoba Province (Argentina) has been carried out. The objectives were: a) to characterize in detail the epidermis of the organs; b) to contribute to the delimitation at specific level in cases of close morphological similarities; c) to provide additional information for
Hoehnea. Publicado em: 2011-12
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30. Mastócitos no lobo ventral da próstata, no epidídimo e no testículo de ratos UChB (consumidores voluntários de etanol a 10%) / Mast cells in the ventral prostate, epididymis and testis of UchB - ethanol preferring rats (10% v/v high ethanol voluntary intake)
Alcoholism has reached alarming proportions throughout the world, but there is little research on the inflammatory effect of ethanol in the reproductive organs. The mast cell, which is one of the main cells involved in inflammatory processes, is known to have two subtypes in rodents, connective (CTMC) and mucosal (MMC) tissue. Hence, the aim of this work is
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2010
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31. Assessment of sperm production and reproductive organs of Wistar rats to long-term exposure of Caesalpinia ferrea
Caesalpinia ferrea Mart (Leguminosae) é uma planta medicinal utilizada principalmente no tratamento do diabetes, dentre outras propriedades terapêuticas, mas que também apresenta relatos de hepatotóxicos. Embora apresente em sua constituição substâncias capazes de interferirem na fertilidade, como flavonóides e cumarina, nenhum estudo foi ainda reali
Anais da Academia Brasileira de Ciências. Publicado em: 2010-12
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32. Editorial
The structure of the male reproductive tract was described in Uca uruguayensis Nobili, 1901, by using histological methods, scanning electron microscopy techniques, and stereoscopic observations of fresh material. The aim of this work was to establish the functional changes associated with sexual maturation. The morphology of the first (G1) and second (G2) p
Iheringia. Série Zoologia. Publicado em: 30/03/2010
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33. Internal reproductive organs of Cosmoclopius nigroannulatus (Hemiptera: Reduviidae)
Os órgãos internos de reprodução de machos e fêmeas de Cosmoclopius nigroannulatus são descritos, ilustrados e mensurados. Não se registrou diferença significativa entre machos imaturos e reprodutivos quanto ao tamanho das estruturas, sendo o aspecto destas similar em ambos. Já nas fêmeas, constataram-se diferenças notáveis tanto no aspecto quant
Publicado em: 2010
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34. Characterization of the imaginal reproductive diapause of Oebalus poecilus (Dallas) (Hemiptera : Pentatomidae) / Caracterização da diapausa imaginal reprodutiva de oebalus poecilus (Dallas) (Hemiptera: Pentatomidae)
Descreveu-se o estado de desenvolvimento dos órgãos internos de reprodução de fêmeas e machos de Oebalus poecilus (Dallas) e avaliou-se o conteúdo de corpos gordurosos contidos na cavidade abdominal, durante o período de hibernação, em indivíduos amostrados em folhedo de bambu, em Eldorado do Sul (30º02’S e 51°23’W), RS, Brasil. No início da
Publicado em: 2010
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35. Unravelling MADS-box gene family in Eucalyptus spp. : a starting point to an understanding of their developmental role in trees
MADS-box genes encode a family of transcription factors which control diverse developmental processes in flowering plants ranging from root to flower and fruit development. Members of the MADS-box gene family share a highly conserved sequence of approximately 180 nucleotides that encodes a DNA-binding domain. We used bioinformatics tools to investigate the i
Publicado em: 2010
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36. Macroscopic and microscopic study in testes and epididymis of great rhea (Rhea americana, Linnaeus - 1758)(Rheidae) / ESTUDO DE MORFOLOGIA MACROSCÓPICA, MICROSCÓPICA TESTICULAR E EPIDIDIMÁRIA EM EMAS (Rhea americana, Linnaeus 1758)(RHEIDAE)
The purpose of this research was studied the macroscopic morphology of rheas testis and epididymis. Were studied testis from 54 rheas, breed in captivity. In commercial slaughter, were collected testis to analyzed macroscopic measurements of testis and epididymis, consisting in length, width, thickness, circumference, volume, parenchyma and testicular capsul
Publicado em: 2010