Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Biocell (2) Autor Camargo Abdalla,Fábio (2) Fioretti Gracioli-Vitti,Luciana (1) Morelli Silva De Moraes,Regina Lúcia (1) da Cruz-Höfling,Maria Alice (1) da Cruz-Landim,Carminda (1) Palavra-chave Mandibular gland (1) Melipona bicolor (1) Morphology (1) Piaractus mesopotamicus (1) Polygynic colonies (1) Spermatogenesis (1) Spermatogonia (1) Spermiogenesis (1) Teleostei (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2005 (1) 2003 (1) País Argentina (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Comparative study of mandibular glands of Melipona bicolor queens obtained from polygynic and monogynic colonies Biocell Fioretti Gracioli-Vitti,Luciana; Camargo Abdalla,Fábio; Morelli Silva De Moraes,Regina Lúcia. The aim of the present study was analyze, by histological and morphometrical studies, mandibular glands of Melipona bicolor queens collected from monogynic and polygynic colonies and compare their level of development. The results showed that the glands of physogastric queens from monogynic colony present a higher level of activity in relation to the queens of polygynic colonies; this is explained by the fact that just a unique queen controls the monogynic colony. In the polygynic colonies, the queens may divide such control to each other. Tipo: Info:eu-repo/semantics/article Palavras-chave: Melipona bicolor; Mandibular gland; Morphology; Polygynic colonies. Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452005000100001 Morphological study of the spermatogenesis in the teleost Piaractus mesopotamicus Biocell da Cruz-Landim,Carminda; Camargo Abdalla,Fábio; da Cruz-Höfling,Maria Alice. The spermatogenesis of Piaractus mesopotamicus was investigated under light and transmission electron microscopy. The specimens were captured from their natural environment (Rio Miranda and Rio Aquidauana, Pantanal Matogrossense, Brazil) during April and September. The results were compared with the spermatogenic data of specimens under captivity condition. In both conditions, P. mesopotamicus presented the typical spermatogenesis pattern of the teleost fishes, showing no significative differences. The spermatozoon was classified as type I, which has a globular head without acrosome, a short middle piece and a long tail constituted only by the flagellum. This type of spermatozoon is considered the basic type in fishes. Tipo: Info:eu-repo/semantics/article Palavras-chave: Piaractus mesopotamicus; Spermatogenesis; Spermatogonia; Spermiogenesis; Teleostei. Ano: 2003 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452003000300003 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco