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	Provedor de dados International Journal of Morphology (2) Autor Estecondo,S (2) Galíndez,E. J (2) Díaz Andrade,M. C (1) Díaz-Andrade,M. C (1) López-Cazorla,A (1) Moya,A. C (1) Mais... Palavra-chave Elasmobranchs (2) Reproduction (2) Folliculogenesis (1) Mustelus schmitti (1) Ovary (1) Sympterygia bonapartii (1) Uterus (1) Viviparity (1) Mais... Tipo do documento Journal article (2) Ano 2011 (1) 2010 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Ovarian Folliculogenesis in the Smallnose Fanskate Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes, Rajidae) International Journal of Morphology Díaz-Andrade,M. C; Galíndez,E. J; López-Cazorla,A; Estecondo,S. Chondrichthyes have become an important economic resource in the last decades, with Argentina as one of the countries that exploits more sharks and skates, even at levels that exceed de limits of many species. However, there is a scarce knowledge of the reproductive biology of this group, particularly from species inhabiting the Southern hemisphere. This work shows the most relevant facts during folliculogenesis in Sympterygia bonapartii. Results show that germinal cells are present in immature and maturing females. The most important facts that vary along de follicular development are the number of types and layers of follicular cells, the establishment of thin projections from the follicular cells and the degree of development of the thecae. Follicular... Tipo: Journal article Palavras-chave: Elasmobranchs; Reproduction; Ovary; Folliculogenesis; Sympterygia bonapartii. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100030 Morphological Changes in the Pregnant Uterus of the Smooth Hound Dogfish Mustelus schmitti Springer, 1939 (Gatuzo) (Condrichthyes, Triakidae): Microscopic Study and Phylogenetic Reproductive Implications International Journal of Morphology Galíndez,E. J; Díaz Andrade,M. C; Moya,A. C; Estecondo,S. Elasmobranchs are important, not only as an economic resource but also for their phylogenetic position. Their slow growth and long reproductive cycles, together with the high fisheries pressure exerted, attempt to the knowledge of all biological parameters of species. In this work we analyze the histology of the pregnant uterus of the gatuzo, a viviparous aplacental shark. The mucosa depicts modifications similar to those of placental species and others proper of histotrophism. Likewise, a network-like muscular layer in the mucosa was described for first time in the genus. The presence of vitelline plates in the gut of at term embryos suggests that the maternal supplies are not enough for the big fetus development. The relationships between maternal... Tipo: Journal article Palavras-chave: Elasmobranchs; Reproduction; Uterus; Viviparity; Mustelus schmitti. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400004 Registros recuperados: 2 Primeira ... 1 ... Última

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