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	Provedor de dados Acta Botanica (1) Biocell (1) BABT (1) Autor Albiero,Adriana Lenita Meyer (1) Carvalho,Jordano Dorval Tavares de (1) Essi,Liliana (1) Galati,B.G. (1) Gotelli,M.M. (1) Medan,D. (1) Muneratto,Júnior Cesar (1) Oliveira,João Marcelo Santos de (1) Oyama,Sayuri de Oliveira (1) Souza,Luiz Antonio de (1) Mais... Palavra-chave Gynoecium (3) Perianth (2) Androecium (1) Dyckia (1) Encholirium (1) Floral morphology (1) Ovule (1) Peltate trichome (1) Pericarp (1) Pitcairnioideae (1) Seed (1) Stamen (1) Transmitting tissue (1) Ultrastructure (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2017 (1) 2010 (2) País Brazil (2) Argentina (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Flower and floral trichome morphology of species of Dyckia Schult. f. (Bromeliaceae, Pitcairnioideae), and their importance to species characterization and genus taxonomy Acta Botanica Carvalho,Jordano Dorval Tavares de; Essi,Liliana; Oliveira,João Marcelo Santos de. ABSTRACT This paper presents a morphological analysis of the flower and floral trichomes of three rare species of Dyckia: Dyckia ibicuiensis, D. polyclada and D. racinae. Flowers at anthesis were collected from natural populations and subjected to morphometric and microscopic analysis. Among the most representative features for Dyckia are: morphometrics of individual floral parts; the general configuration of the androecium and gynoecium; the degree of fusion of the stigmatic lobes; the morphology of the ovules, especially in relation to the chalazal appendix; and the presence and constitution of peltate trichomes in the perianth, which exhibited a polymorphism not previously reported for Dyckia. The characters were effective at describing each species,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Androecium; Dyckia; Encholirium; Floral morphology; Gynoecium; Peltate trichome; Perianth; Pitcairnioideae. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100029 Structure of the stigma and style in sunflower (Helianthus annuus L.) Biocell Gotelli,M.M.; Galati,B.G.; Medan,D.. This is the first report of the ultrastructure of the stigma and style during and after anthesis in Helianthus annuus L. using light and transmission electron microscopy. The stigma is bifid with unicellular papillae. There is no secretion of lipids, carbohydrates or proteins at anthesis. The style is semisolid in the upper portion, closer to the stigma, and becomes solid below. Ultrastructural changes on cells of the stigma and the style are described. The transmitting tissue of the ovule is first evident 40 minutes after pollination and persists during the first stages of embryogenesis. Only one pollen tube per micropyle was observed growing through this tissue. Tipo: Info:eu-repo/semantics/article Palavras-chave: Ultrastructure; Gynoecium; Ovule; Transmitting tissue. Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452010000300005 Morphological and anatomical features of the flowers and fruits during the development of Chamissoa altissima (Jacq.) Kunth (Amaranthaceae) BABT Oyama,Sayuri de Oliveira; Souza,Luiz Antonio de; Muneratto,Júnior Cesar; Albiero,Adriana Lenita Meyer. The morphology and structure of the flowers and fruits of Chamissoa altissima (Jacq.) Kunth during the development were analyzed. The plant material was fixed in FAA 50, embedded in historesin and sectioned according to standard techniques. The flowers presented tepals with betalain and homogeneous mesophyll; receptacular nectary; anthers with epidermis, endothecium, one middle layer, and uninucleate tapetum; and monocarpelar ovary with homogeneous mesophyll. The fruit was a circumscissile capsule, presented the same number of cellular layers that the ovary, and possessed subendocarpic sclerenchyma. The seed was bitegmic, exotestal and perispermic. Tipo: Info:eu-repo/semantics/article Palavras-chave: Perianth; Stamen; Gynoecium; Pericarp; Seed. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000600019 Registros recuperados: 3 Primeira ... 1 ... Última

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