Regeneration Biology
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Cultura de anteras e partenogênese in situ e in vitro de genótipos de laranja doce (Citrus sinensis Osbeck.) / Anther culture and in vitro and in situ parthenogenesis of sweet orange (Citrus sinensis Osbeck.) genotypes
The production of completely homozygous lines in citrus breeding program is hard, and double-haploid plantlets (completely homozygous lines) can be used to improve these breeding programs. However, many factors are associated with the success of the regeneration of haploid or double-haploid plants. The aim of this study was the induction and regeneration of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/06/2012
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2. Regeneração da vegetação nativa após colheita florestal de Eucalyptus saligna Sm. na região centro-oeste do Paraná, Brasil
A intensa substituição de vegetação natural por áreas antropizadas gera uma paisagem fragmentada que pode resultar na alteração da dinâmica ambiental. Nesse processo, a extinção de algumas espécies da flora e da fauna silvestre pode passar a ser uma realidade. Frente a este fato, tem se cobrado uma reestruturação do uso e ocupação das áreas i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2010
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3. Desenvolvimento in vitro e imunolocalização de 5-metilcitosina em raízes tuberizadas e não-tuberizadas de Viguiera arenaria Baker (Asteraceae) / In vitro development and immunolocalization of 5-methylcytosine in tuberized and nontuberized roots of Viguiera arenaria Baker (Asteraceae)
Viguiera arenaria Baker is an herbaceous Asteraceae from Cerrado presenting alternate phyllotaxis, capitulum inflorescence and tuberized roots. Although phytochemical analyses have found substances with biological activities of therapeutic interest, little is known about the biology of the plant. In this study, we sought to contribute to the knowledge of asp
Publicado em: 2010
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4. Fungos micorrízicos arbusculares em ecossistema de Mata Seca no norte de Minas Gerais. 2010. / Arbuscular mycorrhizal fungi in Dry Forets ecosystems in north of Minas Gerais. 2010. 68 p. Dissertation (MSc in Plant Biotechnology and Applied). Institute of Biology, Federal Rural University of Rio de Janeiro, Seropédica, RJ. 2010.
This study was conducted in State Park Dry forest in the city of Manga in the North of Minas Gerais, Brazil and aimed to evaluate the occurrence and diversity of arbuscular mycorrhizal fungi (AMF) and the protein related to soil glomalin and biomass of external mycelium in Dry Forest ecosystems in the North of Minas Gerais. To collect the soil samples in eac
Publicado em: 2010
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5. Limitações para a emergência e o estabeleciemento de plântulas : remoção de sementes e microclima
Plantações florestais podem quebrar algumas barreiras, iniciar a sucessão secundária e facilitar a regeneração natural da vegetação nativa, levando a um aumento da complexidade estrutural do habitat. O objetivo deste trabalho foi investigar as limitações, pós-dispersão, à regeneração em reflorestamentos. Para tanto, foram implantados experimen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/04/2009
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6. Frequency of spermatophore production and regeneration in the males of Tityus (Atreus) magnimanus Pocock, 1897 (Scorpiones, Buthidae)
The frequency of spermatophore production and the amount of time between matings for laboratory-reared males of Tityus (Atreus) magnimanus to regenerate spermatophores were examined. Males attain sexual maturity at the fifth or sixth instar (after a period of 137 to 155 days) and can produce initial spermatophores shortly after maturation. After mating, male
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2009
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7. Analise histoquimica, ultra-estrutural e morfometrica do efeito de drogas anti-inflamatorias não esteroides (naproxeno e indometacina) sob a regeneração da nadadeira caudal de teleosteo, Cyprinus carpio (carpa) / Histochemical, ultra-structural and morphometric analysis of the effect of nonsteroidal anti-inflammatory drugs (naproxen and indomethacin) under the tail fin regeneration of teleostm Cyprinus carpio (carp)
The fins of teleosts, when partially amputated, they pass for a quick regenerative process called epimorphic regeneration, characterized by the formation of a mass of undifferentiated cells, by the differentiation of these cells, by the synthesis and the deposition of the extracellular matrix and morphological restoration. The regeneration of the fin is extr
Publicado em: 2008
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8. Ecologia da pesca e biologia reprodutiva do acará-disco (Symphysodon aequifasciatus, Pellegrin 1904) (Perciformes: Cichlidae) na RDS Piagaçu-Purus, Amazônia Central: subsídios para o manejo sustentável de um recurso natural.
Historically ornamental fish have been commercially exploited in the Amazon. Nevertheless this exploitation has been carried out without much planning with little attention to the vulnerability of the fish population or to the social economical aspects of the activity for the local fishermen. Among the most known ornamental fish species commercially used is
Publicado em: 2008
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9. Metamorphosis in the midgut of bees : proliferation or cellular migration? / Metamorfose do intestino medio de abelhas : proliferação ou migração celular?
Bees are holometabolus insects, since they present complete metamorphosis. During the metamorphosis of the insects the gut is completely remodeled. Few studies emphasize aspects of the renewal of the epithelium of bees midgut during metamorphosis. Studies that describe digestive cell proliferation are lacking in images of mitosis. This research is a contri
Publicado em: 2007
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10. Interactions etween ants, fruits and seeds in the cerrado : the role of ants in the biology of seeds and seedlings / Interações entre formigas, frutos e sementes em solo de cerrado : o papel de formigas na biologia de sementes e plantulas
Our knowledge about seed dispersal systems has been improved considerably in the last few years. An increasing number of studies has shown that the process of plant regeneration is often much more complex than we realize, including several different agents across subsequent steps of seed dispersal. For instance, ants may reshape the seed shadow after seeds f
Publicado em: 2007
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11. Obtençao e caracterização de membranas de PLDLA em aplicação como protese para regeneração nervosa periferica / Obtention and characterization of PLDLA membranes for application as peripheral nervous regenation prosthesis
Nas últimas décadas, polímeros biorreabsorvíveis têm sido utilizados em experimentos biomédicos a fim de buscar materiais com propriedades físicas e mecânicas cada vez mais adequados para a sua aplicação no corpo humano. Com intuito de obter um material polimérico adequado para aplicação como prótese tubular para regeneração do nervo ciático
Publicado em: 2007
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12. Population ecology of three timber species in Eastern Amazon : implications for management / Ecologia populacional de tres especies madeireiras na Amazonia oriental : implicações para o manejo
Despite the current and increasing importance of logging in natural forests of the Brazilian Amazon, the population ecology of commercial species is largely unknown. The objective of this study was to contribute to the understanding of the population ecology and the effects of conventional (CL) and reduced impact logging (RIL) on the population dynamics of L
Publicado em: 2007