SciELO - Scientific Electronic Library Online

vol.63 issue1Responses of leaf processing to impacts in streams in Atlantic rain Forest, Rio de Janeiro, Brazil - a test of the biodiversity-ecosystem functioning relationship?Mesh size and bird capture rates in Mato Grosso do Sul State, Brazil author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Brazilian Journal of Biology

Print version ISSN 1519-6984On-line version ISSN 1678-4375


NAKAGHI, L. S. O. et al. Morphometry and morphology of nucleus of the Sertoli and interstitial cells of the tambaqui Colossoma macropomum (Cuvier, 1881) (Pisces: Characidae) during the reproductive cycle. Braz. J. Biol. [online]. 2003, vol.63, n.1, pp.97-104. ISSN 1519-6984.

This study allowed the characterization of the tambaqui Colossoma macropomum testes structural organization, emphasizing Sertoli and interstitial cells and analyzing morphometrically the Sertoli cell nucleus diameter and the interstitial tissue area during the reproductive cycle. Fragments of tambaqui testes were collected in the following reproductive cycle stages: immature, resting, maturation I and II, mature, and regression, and were histologically processed. The Sertoli cells were found at the periphery of the cysts of germinative lineage cells and the nuclei were shown to be smaller as these cells developed. The interstitial cells were better observed between the seminiferous lobules next to vessels in the interstitial tissue of maturing testes.

Keywords : Colossoma macropomum; Sertoli cells; interstitial tissue; morphometry; morphology.

        · abstract in Portuguese     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License