
Anatomical and Histological Organization of the Testes of the Inseminating Catfish Trachelyopterus striatulus (Steindachner, 1877) (Siluriformes: Auchenipteridae)
2013; Wiley; Volume: 43; Issue: 4 Linguagem: Inglês
10.1111/ahe.12082
ISSN1439-0264
AutoresMarcella L. Santos, Naiara Guimarães Sales, Fábio Pereira Arantes, Tiago Casarim Pessali, Nilo Bazzoli, José Enemir dos Santos,
Tópico(s)Sperm and Testicular Function
ResumoAnatomia, Histologia, EmbryologiaVolume 43, Issue 4 p. 310-316 Original Article Anatomical and Histological Organization of the Testes of the Inseminating Catfish Trachelyopterus striatulus (Steindachner, 1877) (Siluriformes: Auchenipteridae) M. L. Santos, M. L. Santos Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorN. G. Sales, N. G. Sales Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, Brazil PET Biologia PUC Minas – MEC/SESu, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorF. P. Arantes, F. P. Arantes Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorT. C. Pessali, T. C. Pessali Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorN. Bazzoli, N. Bazzoli Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorJ. E. Santos, Corresponding Author J. E. Santos Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, Brazil PET Biologia PUC Minas – MEC/SESu, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, Brazil Correspondence: e-mail: [email protected]Search for more papers by this author M. L. Santos, M. L. Santos Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorN. G. Sales, N. G. Sales Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, Brazil PET Biologia PUC Minas – MEC/SESu, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorF. P. Arantes, F. P. Arantes Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorT. C. Pessali, T. C. Pessali Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorN. Bazzoli, N. Bazzoli Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, BrazilSearch for more papers by this authorJ. E. Santos, Corresponding Author J. E. Santos Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, Brazil PET Biologia PUC Minas – MEC/SESu, Av. Dom José Gaspar, 500, Coração Eucarístico, 30.535-610 Belo Horizonte, Minas Gerais, Brazil Correspondence: e-mail: [email protected]Search for more papers by this author First published: 26 August 2013 https://doi.org/10.1111/ahe.12082Citations: 2Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Summary The testicular morphology, spermatogenesis and occurrence of sperm in the ovarian lumen of Trachelyopterus striatulus were studied using anatomical, histological and biometric techniques. A total of 50 catfish (T. striatulus) were captured, measuring 14.9 ± 2.5 cm of standard length, body weight was 81.2 ± 34.5 g and their testes weighed 16.9 ± 6.1 g. The testes of T. striatulus are paired organs, showing two distinct regions: cranial, which shows a compact medial part and with fringes ventrally, and caudal region, which is formed of the seminal vesicle with fringes laterally and two saculiform expansions. The testes presented a length of 35.2 ± 6.9 mm, and the fringes showed a cranial length of 12.1 ± 3.8 mm and caudal length of 6.4 ± 2.6 mm. Histologically, the cranial fringes are spermatogenic and showed cells with significantly different nuclear diameters, ranging from 8.2 ± 1.5 μm (primary spermatogonia) to 1.88 ± 0.3 μm (spermatid). The seminal vesicles and saculiform expansions showed tubules with a simple prismatic secretory epithelium containing spermatozoa and secretion into the lumen. The caudal fringes are exclusively for secretory flow, consisting of tubules with a simple cuboidal epithelium. The common spermatic duct showed a simple cuboidal epithelium and contained spermatozoa with secretion into the lumen. The secretion of the caudal region is acidophilic, with neutral glycoproteins and sialomucin. T. striatulus ovaries showed free spermatozoa or were organized in spermatozeugmata into the ovarian lumen and between the ovuligers lamellae. Citing Literature Volume43, Issue4August 2014Pages 310-316 RelatedInformation
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