Display Floral
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Biologia reprodutiva de Cordiera macrophylla (K. Schum.) Kuntze (Rubiaceae), espécie dioica da região sudoeste do Estado de Mato Grosso, Brasil
RESUMO O gênero Cordiera (Rubiaceae) possui aproximadamente 25 espécies e ampla distribuição no Brasil. Seus representantes são árvores ou arbustos dioicos, com flores funcionalmente unissexuadas. Este estudo foi realizado em dois fragmentos de Floresta Estacional Semidecidual, no município de Tangará da Serra, MT. Foram investigadas a fenologia rep
Rev. Ceres. Publicado em: 2015-12
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2. Self-sterility in the hexaploid Handroanthus serratifolius (Bignoniaceae), the national flower of Brazil
Polyploidization is common among angiosperms and might induce typically allogamous plants to become autogamous (self-compatible, relying on sexual self-fertilization) or apomictic (achieving asexual reproduction through seeds). This work aimed to determine whether neopolyploidy leads to the breakdown of the self-incompatibility system in the hexaploid non-ap
Acta Bot. Bras.. Publicado em: 2013-12
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3. Ecological factors affecting the fruiting success of a Tibouchina trichopoda (DC.) Baill. (Melastomataceae) flower
The abundance and distribution of resources for pollinators modulate the reproduction of plants. This study attempted to determine whether and how the fruiting success of Tibouchina trichopoda flowers varies due to plant size, number of flowers produced, distance between individuals and cardinal orientation of the flowers. From July 2009 to February 2010, we
Acta Bot. Bras.. Publicado em: 2013-03
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4. Partilha de polinizadores por espécies quiropterófilas em fragmento de Cerrado, São Paulo
Plantas com flores necessitam de vetores de pólen para reproduzir sexuadamente, tornando o acesso das plantas a parceiros sexuais via polinizadores um fator limitante e o polinizador, recurso crítico. Plantas simpátricas que compartilham as guildas de polinizadores evitam competição direta diferenciando seu modo de utilização. A presente tese investig
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2010
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5. Variantes de inibidores de [alfa]-amilases selecionados por Phage Display com atividade para [alfa]-amilases do bicudo do algodoeiro (Anthonomus grandis, coleptera: curculionidae)
The cotton boll weevil Anthonomus grandis is an important insect-pest, that causes severe damage in cotton floral fruits and buds. The A. gradis larvae development control is a difficult job because it occurs inside the cotton floral structures. Starch granules from cotton structure are digested by a-amylases secreted to the intestinal lumen. However, a-amyl
Publicado em: 2007
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6. Foliar anatomy of species of Chamaecrista Moench. (Leguminosae/Caesalpinioideae) occurring in rupestrial fields / Anatomia foliar de espécies de Chamaecrista Moench. (Leguminosae/Caesalpinioideae) ocorrentes em campo rupestre
Minas Gerais state flora presents different biomas but little is known about the diversity of its species, some of which secrete natural compounds having well-known biological activity. There is a large number of species of recognized economic interest in the Leguminosae family and in the rupestrial fields of Minas Gerais, totaling 28 of the 351 species incl
Publicado em: 2006
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7. Biologia reprodutiva de Tapirira guianensis Aubl. (Anacardiaceae), uma espécie dióica em mata de galeria do Triângulo Mineiro, Brasil
Foi estudada a biologia reprodutiva de uma população de Tapirira guianensis em Uberlândia, MG. Entre setembro de 1997 e abril de 2000 foi caracterizado o comportamento fenológico reprodutivo de 17 indivíduos da população. Nas análises da biologia floral foram determinados a morfologia e os recursos florais, o período de abertura e de duração das f
Brazilian Journal of Botany. Publicado em: 2005-03
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8. Function of the apetala-1 gene during Arabidopsis floral development.
We have characterized the floral phenotypes produced by the recessive homeotic apetala 1-1 (ap1-1) mutation in Arabidopsis. Plants homozygous for this mutation display a homeotic conversion of sepsis into brachts and the concomitant formation of floral buds in the axil of each transformed sepal. In addition, these flowers lack petals. We show that the loss o
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9. Dual roles of the bZIP transcription factor PERIANTHIA in the control of floral architecture and homeotic gene expression
Flowers develop from floral meristems, which harbor stem cells that support the growth of floral organs. The MADS domain transcription factor AGAMOUS (AG) plays a central role in floral patterning and is required not only for the specification of the two reproductive organ types, but also for termination of stem cell fate. Using a highly conserved cis-re
Company of Biologists.
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10. FLOOZY of petunia is a flavin mono-oxygenase-like protein required for the specification of leaf and flower architecture
The mechanisms that determine the relative positions of floral organs, and thereby their numbers, is a poorly understood aspect of flower development. We isolated a petunia mutant, floozy (fzy), in which the formation of floral organ primordia in the outermost three floral whorls and one of the two bracts at the base of the flower is blocked at an early stag
Cold Spring Harbor Laboratory Press.
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11. Identification and Characterization of Three Orchid MADS-Box Genes of the AP1/AGL9 Subfamily during Floral Transition1
Gene expressions associated with in vitro floral transition in an orchid hybrid (Dendrobium grex Madame Thong-In) were investigated by differential display. One clone, orchid transitional growth related gene 7 (otg7), encoding a new MADS-box gene, was identified to be specifically expressed in the transitional shoot apical meristem (TSAM). Using this clone a
American Society of Plant Physiologists.
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12. Characterization of the Antirrhinum floral homeotic MADS-box gene deficiens: evidence for DNA binding and autoregulation of its persistent expression throughout flower development.
We have determined the structure of the floral homeotic deficiens (defA) gene whose mutants display sepaloid petals and carpelloid stamens, and have analysed its spatial and temporal expression pattern. In addition, several mutant alleles (morphoalleles) were studied. The results of these analyses define three functional domains of the DEF A protein and iden