Organization of the cysts in bee (Hymenoptera, Apidae) testis: Number of spermatozoa per cyst

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:43:52Z No. of bitstreams: 1 S0073-47212001000200025.pdf: 408215 bytes, checksum: 653ef987ea24b6ba95a65beca64ec0fc (MD5) Made available in DSpace on 2013-08-22T18:43:52Z (GMT). No. of bitstreams: 1 S0073-47212001000200025.pdf: 408215 bytes, checksum: 653ef987ea24b6ba95a65beca64ec0fc (MD5) Previous issue date: 2001-11-27 Made available in DSpace on 2013-09-30T19:31:49Z (GMT). No. of bitstreams: 2 S0073-47212001000200025.pdf: 408215 bytes, checksum: 653ef987ea24b6ba95a65beca64ec0fc (MD5) S0073-47212001000200025.pdf.txt: 15928 bytes, checksum: 742c7050ebb5b738c9fd79a97fc441bc (MD5) Previous issue date: 2001-11-27 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:08:41Z No. of bitstreams: 2 S0073-47212001000200025.pdf: 408215 bytes, checksum: 653ef987ea24b6ba95a65beca64ec0fc (MD5) S0073-47212001000200025.pdf.txt: 15928 bytes, checksum: 742c7050ebb5b738c9fd79a97fc441bc (MD5) Made available in DSpace on 2014-05-20T15:08:41Z (GMT). No. of bitstreams: 2 S0073-47212001000200025.pdf: 408215 bytes, checksum: 653ef987ea24b6ba95a65beca64ec0fc (MD5) S0073-47212001000200025.pdf.txt: 15928 bytes, checksum: 742c7050ebb5b738c9fd79a97fc441bc (MD5) Previous issue date: 2001-11-27 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The morphology of the cyst cells in Apis mellifera Linné, 1758, Scaptotrigona postica Latreille, 1804, and Melipona bicolor bicolor Lepeletier, 1836 testis, as well as the average number of spermatic cells are reported. The data indicates a supporting and nourrishing role of the cyst cells to the developing cystocytes. The counts of immature spermatozoa in the cysts show an average of 202.8 ± 21.2 spermatozoa for A. mellifera, 117.4 ± 8.68 for S. postica and 88.8 ± 15.57 for M. bicolor, which predict the occurrence of 8 mitotic cycles in the cystocytes of A. mellifera and 7 in the meliponines, considering that only one spermatozoom originates of each final spermatogonium. Universidade Estadual Paulista Instituto de Biociências Departamento de Biologia Universidade Estadual Paulista Instituto de Biociências Departamento de Biologia