Testis microanatomy and spermatogenesis of the amphipod Hyalella curvispina Shoemaker 1942

Authors

  • Bettina S. Gullo Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM). Universidad Nacional de La Plata (UNLP)
  • María Belén Virgolini Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP). 122 y 60, (1900) La Plata, Provincia de Buenos Aires, Argentina
  • Estela C. Lopretto Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP). 122 y 60, (1900) La Plata, Provincia de Buenos Aires, Argentina

DOI:

https://doi.org/10.4013/nbc.2016.112.04

Abstract

A microanatomical study of the testis and spermatogenesis of the freshwater amphipod Hyalella curvispina Shoemaker 1942 has been performed. The crustaceans were collected in the Arroyo Rivera (Saldungaray, Buenos Aires province, Argentina). Follicular cells undergo changes during spermatogenesis due to its secretory function. In the initial stage they present an oval nucleus and a strongly basophilic cytoplasm. As spermatogenesis progresses, nuclei hypertrophied, and the cytoplasm took on a foamy appearance due to the presence of vacuoles. The wall of the vesicle consists of two layers: an epithelium consisting of cubic glandular cells and an outer layer of fibrous connective tissue. The cells have eosinophilic granular secretion and turn their content into the lumen. Seminal fluid is constituted by secretions from cells of the testicular epithelium as well as glandular cells of the seminal vesicle.

Keywords: histology, testis, Amphipoda, freshwater.

Author Biographies

María Belén Virgolini, Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP). 122 y 60, (1900) La Plata, Provincia de Buenos Aires, Argentina

Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP).

Estela C. Lopretto, Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP). 122 y 60, (1900) La Plata, Provincia de Buenos Aires, Argentina

Cátedra Zoología Invertebrados I, Facultad de Ciencias Naturales y Museo (FCNyM), Universidad Nacional de La Plata (UNLP).

Downloads

Published

2016-04-19

Issue

Vol. 11 No. 2 (2016): May/August

Section

Articles

License

I grant the journal Neotropical Biology and Conservation the first publication of my article, licensed under Creative Commons Attribution license (which allows sharing of work, recognition of authorship and initial publication in this journal).

I confirm that my article is not being submitted to another publication and has not been published in its entirely on another journal. I take full responsibility for its originality and I will also claim responsibility for charges from claims by third parties concerning the authorship of the article.

I also agree that the manuscript will be submitted according to the journal’s publication rules described above.