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	Provedor de dados Naturalis (1) Acta biol.Colomb. (1) Acta Botanica (1) Darwiniana (1) Autor Barboza,Gloria E. (1) Chiarini,Franco E. (1) Clausing, Gudrun (1) Machado,Isabel Cristina (1) Primo,Luis Miguel (1) VARGAS-ROJAS,Diana Lucia (1) VIEIRA,Milene Faria (1) Mais... Palavra-chave Andromonoecy (4) Capparaceae (1) Dissochaeteae (1) Entomophily (1) Extraovarian chambers (1) Hypanthium (1) Incomplete protogyny (1) Leptostemonum (1) Medinillinae (1) Placentation (1) Pogonanthera (1) Pollen tube growth (1) Pollen-ovule ratio (1) Seed number (1) Self-incompatibility (1) Sexual system (1) Social bees (1) Solanum (1) South America (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Article / Letter to the editor (1) Ano 2017 (1) 2009 (1) 2007 (1) 2000 (1) País Argentina (1) Brazil (1) Colombia (1) Netherlands (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última SEX EXPRESSION, BREEDING SYSTEM AND POLLINATORS OF Piper caldense (PIPERACEAE) IN THE BRAZILIAN ATLANTIC FOREST Acta biol.Colomb. VARGAS-ROJAS,Diana Lucia; VIEIRA,Milene Faria. ABSTRACT Neotropical Piper species have bisexual flowers. Such reproductive trait is considered basal in this pantropical genus. However, neotropical species having unisexual (staminate) flowers along with bisexual ones have also been reported. Dichogamy is common in the genus, associated with either self-compatibility or -incompatibility, as well as with entomophily. We analyzed a natural population of Piper caldense in a Atlantic Forest area (Viçosa municipality, Minas Gerais state, southeastern Brazil). Preliminary observations indicated that the species produces two flower types. We analyzed flower sex in spikes of 50 plants. We obtained additional information through morphological and anatomical studies and scanning electron microscopy analyses. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Andromonoecy; Entomophily; Incomplete protogyny; Self-incompatibility; Social bees. Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2017000300370 A new case of late-acting self-incompatibility in Capparis L. (Brassicaceae): C. jacobinae Moric. ex Eichler, an endemic andromonoecious species of the Caatinga, Pernambuco State, Brazil Acta Botanica Primo,Luis Miguel; Machado,Isabel Cristina. We studied the reproductive system of Capparis jacobinae Moric ex Eichler (Brassicaceae), based on controlled hand-pollination and observation of pollen tube growth made in a fluorescence microscope. Of 105 self-pollinated flowers only one produced fruits (success = 0.95%), all the other flowers abscised at the same time, between the eighth and tenth day after anthesis. Nevertheless, self- and cross-pollinated pollen tubes reached the micropyle. The rate of penetrated ovules in self-pollinated flowers was lower during the first 24 h after pollination; thereafter this rate was similar between self- and cross-pollinated flowers for treatments of 48 h, 72 h and 96 h after pollination. In addition, we carried out two indirect estimates of the reproductive... Tipo: Info:eu-repo/semantics/article Palavras-chave: Andromonoecy; Capparaceae; Pollen-ovule ratio; Pollen tube growth; Sexual system. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000300016 Placentation patterns and seed number in fruits of South American Solanum subgen. Leptostemonum (Solanaceae) species Darwiniana Chiarini,Franco E.; Barboza,Gloria E.. Thirty-seven South American species representing seven sections of Solanum subgen. Leptostemonum were analyzed. Andromonoecious as well as hermaphrodite species were considered. The length and width of their fruits was measured, and the number of seeds per fruit was counted. Medial cross sections of fresh, ripe fruits were observed with a stereoscopic microscope and illustrated. Six placentation patterns and three types of seeds were described. A relationship among seed number, fruit size, fruit color and sexual system was detected by means of statistical analysis. These results suggest that andromonoecy affects fruit size and placentation patterns, in order to contain a higher number of seeds per fruit. Tipo: Info:eu-repo/semantics/article Palavras-chave: Andromonoecy; Leptostemonum; Placentation; Seed number; Solanum; South America. Ano: 2007 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932007000200002 Revision of Pachycentria (Melastomataceae) Naturalis Clausing, Gudrun. A revision of Pachycentria Blume, which includes the monotypic Pogonanthera Blume, is presented. Pachycentria comprises eight species and one subspecies. Two species, P. vogelkopensis and P. hanseniana, are newly described. The genus is distinguished from other genera in the Medinillinae by a small ovary in an urceolate hypanthium. and by seeds with comb-shaped testa cells. Andromonoecy is recorded for three species of the genus. Pollination by bees and dispersal by birds and ants has been observed in the field. Pachycentria is distributed in Burma, Thailand, Peninsular Malaysia, Sumatra, Java, Borneo, Philippines, Sulawesi, and New Guinea. Tipo: Article / Letter to the editor Palavras-chave: Dissochaeteae; Medinillinae; Pogonanthera; Andromonoecy; Extraovarian chambers; Hypanthium. Ano: 2000 URL: http://www.repository.naturalis.nl/record/525377 Registros recuperados: 4 Primeira ... 1 ... Última

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