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• Rev. Bras. Zool. 17 (3) • Set 2000 • https://doi.org/10.1590/S0101-81752000000300020   copiar

Ultraestrutura do espermatozóide de Ucides cordatus Linnaeus (Crustacea, Ocypodidae) do litoral norte do Brasil

Ultrastructure of spermatozoon of the crab Ucides cordatus Linaeus (Crustacea, Decapoda) of the northern littoral of Brazil

Autoria SCIMAGO INSTITUTIONS RANKINGS

Resumo

Ultrastructure of spermatozoa of the crab Ucides cordatus Linnaeus, 1763 is described and illustrated. Three parts can be distinguished: 1. the elongate-ovoid acrosome located anteriorly; 2. the cytoplasmic region; and 3. the nuclear region. The acrosome is composed of a thick electron-dense wall and a less electron-dense subacrosomal space. The cytoplasm region connects the acrosome with the nucleus, and three arms filled with microtubules arise from this region. The nucleus is polymorphous. The spermatozoon of Ucides cordatus follows the general pattern described for other Decapods.

Crustacea; Ocypodidae; Ucides cordatus; spermatozoa ultrastructure

Crustacea; Ocypodidae; Ucides cordatus; spermatozoa ultrastructure

Ultraestrutura do espermatozóide de Ucides cordatus Linnaeus (Crustacea, Ocypodidae) do litoral norte do Brasil1 1 Trabalho parcialmente subsidiado pela FCAP, UFPA e Fundação Engenheiro Antônio de Almeida (Portugal).

Ultrastructure of spermatozoon of the crab Ucides cordatus Linaeus (Crustacea, Decapoda) of the northern littoral of Brazil

Edilson Matos* * Correspondências para: Departamento de Biologia Animal, Faculdade de Ciências Agrárias do Pará. Avenida Tancredo Neves, 66077-530 Belém, Pará, Brasil. ; Patrícia MatosI; Laura CorralII; Carlos AzevedoII

IDepartamento de Histologia e Embriologia, Universidade Federal do Pará. 66059-900 Belém, Pará, Brasil

IIDepartamento de Biologia Celular, ICBAS, Universidade do Porto. 4050 Porto, Portugal

ABSTRACT

Ultrastructure of spermatozoa of the crab Ucides cordatus Linnaeus, 1763 is described and illustrated. Three parts can be distinguished: 1. the elongate-ovoid acrosome located anteriorly; 2. the cytoplasmic region; and 3. the nuclear region. The acrosome is composed of a thick electron-dense wall and a less electron-dense subacrosomal space. The cytoplasm region connects the acrosome with the nucleus, and three arms filled with microtubules arise from this region. The nucleus is polymorphous. The spermatozoon of Ucides cordatus follows the general pattern described for other Decapods.

Key words: Crustacea, Ocypodidae, Ucides cordatus, spermatozoa ultrastructure

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AGRADECIMENTOS. Ao Sr. João Carvalheiro pelo serviço iconográfico.

Recebido em 01.VII.1999; aceito em 25.VIII.2000.

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  • *
    Correspondências para: Departamento de Biologia Animal, Faculdade de Ciências Agrárias do Pará. Avenida Tancredo Neves, 66077-530 Belém, Pará, Brasil.
  • 1
    Trabalho parcialmente subsidiado pela FCAP, UFPA e Fundação Engenheiro Antônio de Almeida (Portugal).

    • Datas de Publicação

    • Publicação nesta coleção
      08 Maio 2009
    • Data do Fascículo
      Set 2000

    Histórico

    • Aceito
      25 Ago 2000
    • Recebido
      01 Jul 1999
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