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	Provedor de dados Acta Botanica (1) Anais da ABC (AABC) (1) RChHN (1) Autor CORREA,CRISTIÁN (1) Caprestano,Clarissa A. (1) Machado,Isabel Cristina (1) Primo,Luis Miguel (1) Stefenon,Valdir M. (1) THIEL,MARTIN (1) Mais... Palavra-chave Sexual system (3) Andromonoecy (1) Araucaria (1) Brazilian pine (1) Capparaceae (1) Caridea (1) Mating behavior (1) Mating system (1) Pollen tube growth (1) Pollen-ovule ratio (1) Sexual dimorphism (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Journal article (1) Ano 2009 (2) 2003 (1) País Brazil (2) Chile (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última 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 Mating systems in caridean shrimp (Decapoda: Caridea) and their evolutionary consequences for sexual dimorphism and reproductive biology RChHN CORREA,CRISTIÁN; THIEL,MARTIN. In this paper we review functional and evolutionary relationships among mating systems of caridean shrimp and specific traits such as general biology/ecology, sexual systems, behavior and morphology. Four mating systems are described based on reports from available literature, and a fifth system is recognized but published information is insufficient to describe it in detail. `Monogamy' occurs in many species inhabiting monopolizable refuges or hosts, especially when environmental conditions restrict the probability of intraspecific interactions. In contrast, free-living species experience higher encounter rates and males can dominate or search. In `neighborhoods of dominance' mating systems, large males have higher reproductive success since they perform... Tipo: Journal article Palavras-chave: Caridea; Mating behavior; Mating system; Sexual dimorphism; Sexual system. Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000200006 Monoicy in A. angustifolia (Bert.) O. Kuntze (Araucariaceae): I. Morphological aspects of the reproductive structures Anais da ABC (AABC) Stefenon,Valdir M.; Caprestano,Clarissa A.. Araucaria angustifolia (Bert.) O. Kuntze is a dioecious conifer species native of Brazil. The rare occurrence of monoiceous specimens have been attributed to pathogenic infections or other injuries in adult trees. Here, the morphological characteristics of male and female cones and pollen grains of a monoiceous A. angustifolia are described. Male and female cones and pollen grains presented normal morphology, lacking any sort of injuries or infection and suggesting the existence of further grounds for the occurrence of monoicy in this conifer species. Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria; Sexual system; Brazilian pine. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400009 Registros recuperados: 3 Primeira ... 1 ... Última

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