Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/94865
Type: Artigo de periódico
Title: Ultrastructure Of Apyrene And Eupyrene Spermatozoa From The Seminal Vesicle Of Euptoieta Hegesia (lepidoptera: Nymphalidae)
Author: Mancini K.
Dolder H.
Abstract: The ultrastructure of the seminal vesicle's spermatozoa of the butterfly Euptoieta hegesia was analyzed. The apyrene spermatozoa measure about 300 μm in length and swim freely in a secretion. The anterior end consists in a cap with a cylindrical extension and a globular structure. The flagellum has a 9+9+2 axoneme, two mitochondrial derivatives with paracrystalline matrices and an external coat formed by concentric layers. The eupyrene spermatozoa measure about 550 μm in length and are grouped into bundles. The anterior end consists in an amorphous globule. Posterior to this globule, a coat with a dense material covers the spermatozoon where an acrosome and a nucleus appear. The flagellum has a 9+9+2 axoneme and two mitochondrial derivatives. External to the coat and attached to the dense material, there is a reticular appendage, which has a paracrystalline core and extends to the distal tip of the spermatozoon. © 2001 Harcourt Publishers Ltd.
Editor: 
Rights: fechado
Identifier DOI: 10.1054/tice.2001.0184
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0034911351&partnerID=40&md5=21f6be02661ca3c81504bd919609047d
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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