Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/4625
Title: Morphology of testicular and post-testicular spermatozoa in Microstigmus arlei Richards, 1972 and M. nigrophthalmus Melo, 1992 (Hymenoptera: Apoidea: Pemphredoninae) with phylogenetic consideration.
Authors: Zama, Uyrá dos Santos
Moreira, Jane
Báo, Sônia Nair
Campos, Lucio Antônio de Oliveira
Dolder, Heidi
Lino Neto, José
Keywords: Ultrastructure
Sperm
Sphecidae
Crabronidae
Phylogeny
Issue Date: 2007
Citation: ZAMA, U. dos S. et al. Morphology of testicular and post-testicular spermatozoa in Microstigmus arlei Richards, 1972 and M. nigrophthalmus Melo, 1992 (Hymenoptera: Apoidea: Pemphredoninae) with phylogenetic consideration. Arthropod Structure and Development, v. 6, p. 304-316, 2007. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1467803907000096>. Acesso em: 08 nov. 2014.
Abstract: The sperm of Microstigmus arlei and Microstigmus nigrophthalmus are twisted in a spiral and consist of two regions: the head, formed by an acrosome and a nucleus, and the flagellum, formed by two asymmetric mitochondrial derivatives, a long centriolar adjunct, an axoneme (9 þ 9 þ 2) and two accessory bodies. The head shows a characteristic morphology. The acrosome is very long and is basically made up of a paracrystalline structure. In the central head region, the acrosome is inserted into the nucleus, which is observed coiling laterally around the paracrystalline structure. In the subsequent part of the spermatozoon the nucleus appears round in transverse sections, and over some length it is still penetrated by the acrosome until shortly distal to the flagellar insertion. At this point the nucleus forms an inverted cone-shaped projection. These morphological characteristics of acrosome and nucleus of the Microstigmus wasp have not been previously described in Apoidea and are useful for phylogenetic evaluation of this superfamily.
URI: http://www.repositorio.ufop.br/handle/123456789/4625
metadata.dc.identifier.doi: https://doi.org/10.1016/j.asd.2006.11.004
ISSN: 1467-8039
metadata.dc.rights.license: O periódico Arthropod Structure & Development concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3550930483964.
Appears in Collections:DECBI - Artigos publicados em periódicos

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