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Registros recuperados: 14
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Alpinia purpurata (Vieill.) K. Schum.: planta ornamental para cultivo no Cerrado. Infoteca-e
ALONSO, A. M.; SILVA, J. C. S..
2010
Tipo: Documentos (INFOTECA-E) Palavras-chave: Planta ornamental; Cerrado; Ornamental plant; Flower; Indigenous organisms; Savanna.
Ano: 2010 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/883988
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Biologia floral e reprodutiva de Turbina cordata (Choisy) Austin & Staples (Convolvulaceae) na região de Petrolina-PE. Repositório Alice
KIILL, L. H. P.; COSTA, F.C.R.; MANGABEIRA, M.O..
2002
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Planta; Biologia floral; Reprodução; Especie; Recursos naturais; Botânica; Turbina cordata; Brasil; Pernambuco; Petrolina; Plants; Flower; Biology; Reproduction; Species; Natural resources; Botânica; Brazil; Recurso natural; Caatinga; Natural resource.
Ano: 2002 URL: http://www.alice.cnptia.embrapa.br/handle/doc/127838
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Colleters in Chamaecrista (L.) Moench sect. Chamaecrista and sect. Caliciopsis (Leguminosae-Caesalpinioideae): anatomy and taxonomic implications Acta Botanica
Silva,Marinalva dos Santos; Coutinho,Ítalo Antônio Cotta; Araújo,Maicon Nascimento; Meira,Renata Maria Strozi Alves.
ABSTRACT The genus Chamaecrista contains ca. 330 species organized into six sections, of which section Chamaecrista is the second largest (ca.75 species) distributed among six series, while the section Caliciopsis contains only two species. Colleters have been described in the genus Chamaecrista and they show potential taxonomic and phylogenetic significance. They are associated with lubrication, desiccation prevention and protection from microbial attacks of young developing organs. Although six types of colleters have been described for the genus Chamaecrista, there have been no studies focusing on the diversity of colleters in the sections Chamaecrista and Caliciopsis. Samples from developing leaves and flowers of both sections were obtained from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Colleter; Flower; Histochemical analysis; Leaf; Polysaccharides; Secretory structures; Taxonomy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300382
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Floral biology and breeding system of Psychotria tenuinervis Muell. Arg. (Rubiaceae) in the Atlantic rain forest, SE Brazil Acta Botanica
Virillo,Carolina Bernucci; Ramos,Flavio Nunes; Castro,Cibele Cardoso de; Semir,João.
(Floral biology and breeding system oi Psychotria tenuinervis Muell. Arg. (Rubiaceae) in the Atlantic rain forest, SE Brazil). The aim of this study was to investigate pollination biology, floral morphometry, morph ratio and breeding system oiPsychotria tenuinervis in an area of Atlantic rain forest in southeastern Brazil. Pollination biology was studied based on focal observations and the breeding system was determined using controlled crosses; data on flower production and floral morphometry were compared between the two floral morphs. Flower production by the two floral morphs was similar, with flowers being reciprocally herkogamous, diurnal and pollinated at similar frequencies, mainly by medium-sized bees. Corolla length and diameter, as well as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic forest; Distyly; Flower; Herkogamy; Pollination.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062007000400012
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Floral glands in asclepiads: structure, diversity and evolution Acta Botanica
Demarco,Diego.
ABSTRACT Species of Apocynaceae stand out among angiosperms in having very complex flowers, especially those of asclepiads, which belong to the most derived subfamily (Asclepiadoideae). These flowers are known to represent the highest degree of floral synorganization of the eudicots, and are comparable only to orchids. This morphological complexity may also be understood by observing their glands. Asclepiads have several protective and nuptial secretory structures. Their highly specific and specialized pollination systems are associated with the great diversity of glands found in their flowers. This review gathers data regarding all types of floral glands described for asclepiads and adds three new types (glandular trichome, secretory idioblast and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomy; Apocynaceae; Asclepiadoideae; Diversity; Evolution; Flower; Secretory structures.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300477
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Floricultura no Distrito Federal: perspectivas para o fortalecimento da cadeia produtiva de flores. Infoteca-e
ALONSO, A. M.; SILVA, J. C. S..
2009
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Distrito Federal; Floriculture; Flower; Brazil; Floricultura; Flor.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/657363
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Histological analysis of pollen-pistil interactions in sour passion fruit plants (Passiflora edulis Sims) Biocell
Madureira,Hérika Chagas; Pereira,Telma Nair Santana; Cunha,Maura Da; Klein,Denise Espellet.
The success of sexual plant reproduction is directly influenced by specific interactions between the pollen and pistil. Light, fluorescence and scanning electron microscopy techniques were used to evaluate the steps of pollination in sour passion fruit plants (Passiflora edulis Sims). In the compatible interaction, pollen tubes grow through stigma projections towards the ovary. The pollen grain surface was found to be spheroidal and to consist of heteroreticulate exine with six colpi. Furthermore, analysis in vivo of pollen-pistil interactions indicated that stigmas of flowers 24 hours before anthesis are unable to discriminate compatible (genetically unrelated) and incompatible (genetically related) pollen grains. Taken together, these results provide...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flower; Pollen tube; Pollination; Stigma.
Ano: 2012 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452012000200005
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Increasing plant longevity and associated metabolic events in potted carnation (Dianthus caryophyllus L. Clove Pink) Braz. J. Plant Physiol.
Karimi,Mahnaz; Asil,Moazzam Hassanpour; Zakizadeh,Hedayat.
The effects of aminooxyacetic acid, benzyladenine, and 1-methylcyclopropene treatments on the post-production flower quality of potted carnation plants (Dianthus caryophyllus L. Clove Pink) were investigated considering ethylene production and antioxidant metabolism. Maximum plant longevity (17 days) was obtained using 70 ppb of 1-methylcyclopropene. As compared to control plants, ethylene production was significantly decreased by aminooxyacetic acid at concentrations over 100 mg L-1, benzyladenine at 20 or 30 mg L-1, and 1-methylcyclopropene at 70 and 140 ppb. A significant increase in 1-aminocyclopropane-1-carboxylic-acid concentration was observed in 1-methylcyclopropene treated plants compared with the control ones. On the other hand, decline in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aminooxyacetic acid; Benzyladenine; Ethylene production; Flower; 1-methylcyclopropene.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000400003
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Some thoughts on the physiology of caffeine in coffee: and a glimpse of metabolite profiling Braz. J. Plant Physiol.
Baumann,Thomas W..
Human beings enjoy the flavor and stimulating activity of a cup of coffee without knowing that by doing so, they are part of a 'food web' and receive signals coffee plants build to improve their struggle for life. This review is centered in the first part on the purine alkaloid caffeine and its physiological role in the coffee plant's life cycle. Many of the thoughts and ideas presented here are plain speculation, because the real research revealing the secrets of plant physiology such as e.g. the formation of the coffee bean with all its ingredients, has just started. The recent achievements in molecular biology made it possible to tackle and answer new questions regarding the regulation of secondary metabolism in the coffee plant organs at selected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endosperm; Flower; Germination; Metabolite profiling; Purine alkaloid; Perisperm.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100017
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The flower anatomy of five species of Myrteae and its contribution to the taxonomy of Myrtaceae Acta Botanica
Martos,Luana; Galan,Adrielle Tayrine Oliveira Froemming; Souza,Luiz Antonio de; Mourão,Káthia Socorro Mathias.
ABSTRACT Considerable effort has been spent towards understanding the phylogeny of Myrteae, and based on the phylogenetic data presently available the traditional subdivision of Myrteae into three subtribes is not supported. The present paper aims to assess the usefulness of floral characters in distinguishing five species that represent five of the six South American clades of Myrteae (Myrtaceae). Floral buds and flowers of Campomanesia adamantium, Eugenia pitanga, Myrceugenia alpigena, Myrcia multiflora and Myrciaria cuspidata were collected from individual plants growing in the Cerrado (Brazilian/Central South American savanna). Among these species, the perianth of E. pitanga is the most distinct due to its vasculurization and pilosity. The hypanthium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomical characteristics; Myrtaceae; Floral vasculature; Flower; Phylogeny.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100042
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The monotypic Brazilian genus Diacrodon is a synonym of Borreria (Spermacoceae, Rubiaceae): morphological and molecular evidences Anais da ABC (AABC)
MIGUEL,LAILA M.; SOBRADO,SANDRA V.; JANSSENS,STEVEN; DESSEIN,STEVEN; CABRAL,ELSA L..
ABSTRACT Diacrodon is a monotypic genus of the tribe Spermacoceae (Rubiaceae), endemic to northeastern Brazil. Diacrodon compressus is frequently misidentified with a two lobed calyx species of Borreria, B. verticillata. Traditionally, in Spermacoceae the fruit type was considered a diagnostic character among the genera. In this sense, D. compressus presents a strongly compressed, one seeded and indehiscent fruit (vs. globose, two seeded and dehiscent fruit in B. verticillata). In this work, we address two objectives: evaluate the systematic position and determine the identity of Diacrodon in respect to other taxa. Molecular analyses using ITS and ETS indicate that D. compressus is strongly related to other species of Borreria. The morphological results...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flower; Fruit; ITS-ETS dataset; Morphology; Pollen; Seed.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401397
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The role of petals in development of grey mould in strawberries Trop. Plant Pathol.
Boff,Pedro; Kraker,Joop de; Gerlagh,Mathijs; Köhl,Jürgen.
Studies were conducted in annual crops of strawberry (Fragaria x ananassa) (cv. Elsanta to assess the relative importance of petals as an inoculum source of grey mould, caused by Botrytis cinerea and to identify during which period of flower and fruit development the presence of petals has a significant effect on development of grey mould on fruits. In 1998, the incidence of B. cinerea on flower parts was assessed, and the symptoms of grey mould on fruits were characterised with regards to their starting point. The incidence of B. cinerea on petals was 65-85% of those flowers that harboured B. cinerea. The starting point of symptoms was located underneath the sepals in 65-85% of fruits with grey mould, and petals were present at this site in about 50% of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Strawberries; Botrytis cinerea; Flower; Epidemiology; Inoculum source; Phenology.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000100011
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Transcriptome analyses of the Dof-like gene family in grapevine reveal its involvement in berry, flower and seed development. Repositório Alice
SILVA, D. C. da; FALAVIGNA, V. da S.; FASOLI, M.; BUFFON, V.; PORTO, D. D.; PAPPAS JÚNIOR, G. J.; PEZZOTTI, M.; PASQUALI, G.; REVERS, L. F..
The Dof (DNA-binding with one finger) protein family spans a group of plant transcription factors involved in the regulation of several functions, such as plant responses to stress, hormones and light, phytochrome signaling and seed germination. Here we describe the Dof-like gene family in grapevine (Vitis vinifera L.), which consists of 25 genes coding for Dof. An extensive in silico characterization of the VviDofL gene family was performed. Additionally, the expression of the entire gene family was assessed in 54 grapevine tissues and organs using an integrated approach with microarray (cv Corvina) and real-time PCR (cv Pinot Noir) analyses. The phylogenetic analysis comparing grapevine sequences with those of Arabidopsis, tomato, poplar and already...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Videira; Corvina; Pinot Noir; Desenvolvimento da semente; Uva; Genética; Gene; Conservação; Gene; Grapevine; Diversification of grapevine; Flower; Berry; Seed development.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1061878
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Trichomes that secrete substances of a mixed nature in the vegetative and reproductive organs of some species of Moraceae Acta Botanica
Schnetzler,Bruna Noce; Teixeira,Simone Pádua; Marinho,and Cristina Ribeiro.
ABSTRACT This study aimed to obtain new information about the distribution, morphology and content of secretory trichomes present in the vegetative and reproductive organs of four species of Moraceae: Artocarpus heterophyllus, Dorstenia cayapia, Maclura tinctoria and Sorocea bonplandii. Stem, leaf, flower and inflorescence samples were processed for scanning electron and light microscopy. The species have secretory trichomes on the leaf blade, petiole and stem and also on the inflorescence and flowers of D. cayapia and S. bonplandii and on the peduncle of the inflorescence in A. heterophyllus. These trichomes are of the capitate type in all species, but A. heterophyllus also possess peltate secretory trichomes. Both trichome types exhibit a multicellular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomy; Artocarpus; Dorstenia; Flower; Gland; Leaf; Maclura; Morphology; Sorocea.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300392
Registros recuperados: 14
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