Microscopic Analysis of Mustelus schmitti´s Uteri During Reproductive Cycle
Annual Research & Review in Biology · pp. 20–32 · Published 9 Dec 2014
10.9734/ARRB/2015/13940Abstract
Aims: It was analysed with light and electron microscopy the different zones of the Mustelus schmitti`suteri along the reproductive cycle. Study Design: Histological routine techniques were used. Place and Duration of Study: Specimens of Mustelus schmitti were collected from the Bahia Blanca estuary, each month, from 2002 to 2006. They were caught by longlines. The fishing was made at the top of the tide during the day. Methologogy: A total of 24 animals were collected and processed; 11 were immature, 6 were maturing and 7 mature females; 4 of this last group were pregnant. Each animal was humanely sacrificed. A longitudinal ventral incision was made in each animal so as to remove the reproductive organs. The pieces were stored in Bouin solution for light microscopy and in 2.5% glutaraldehyde in 0.1 M cacodylate with 12% saccarose for transmission. Results: In immature animals, the simple columnar epithelium shows small and numerous folds, PAS (-) and AB (-). Beneath this epithelium, muscular fibers in longitudinal disposition alternate with connective tissue, finishing in a simple serosa. The uterine epithelium of the anterior portion in mature females, between the isthmus and the cervix, is stratified, PAS (+) and AB (+). Three muscle layers continue and the first one displays a disposition like a net. The second layer has longitudinal fibers divided into two by vascularized connective tissue and the third, is very thin. A typical serosa encloses the organ. In the posterior portion of the uterus in mature females, the epithelium is also stratified but with more secretive cells. The presence of sperm was detected in the cervix and in the posterior portion of the uterus suggesting a special uterine epithelial-sperm interaction. Conclusion: The uteri suffer a cyclic remodelation not only in the epithelia but in the muscle layers.
References (29)
- 1 The female reproductive system [DOI]
- 2 Evolutionary transitions among egg–laying, live–bearing and maternal inputs in sharks and rays [DOI]
- 3 Relationship between reproductive biology and age composition and growth in Urolophus lobatus (Batoidea: Urolophidae) [DOI]
- 4 Uterogestation and placentation in elasmobranchs [DOI]
- 5 Uterine epithelial‐sperm interaction, endometrial cycle and sperm storage in the terminal zone of the oviducal gland in the placental smoothhound,Mustelus canis [DOI]
- 6 Reproduction, placentation, and embryonic development of the Atlantic sharpnose shark, Rhizoprionodon terraenovae [DOI]
- 7 Cell types in peripheral blood of the nurse shark: An approach to structure and function [DOI]
- 8 Reproductive life history of the Atlantic stingray, Dasyatis sabina (Pisces, Dasyatidae), in the freshwater St Johns River, Florida
- 9 Uterine specializations in elasmobranchs [DOI]
- 10 Changes in Composition During Embryo Development of the Gulper Shark, Centrophorus Granulosus (Elasmobranchii, Centrophoridae): An Assessment of Maternal-embryonic Nutritional Relationships [DOI]
- 11 Observations On The Reproductive-Biology Of The Cownose Ray, Rhinoptera-Bonasus, In Chesapeake Bay
- 12 Ultrastructure of uterine trophonemata, accommodation for uterolactation, and gas exchange in the southern stingray, Dasyatis americana [DOI]
- 13 The interleukin 1 (IL-1) system in the uteroplacental complex of a cartilaginous fish, the smoothhound shark, Mustelus canis [DOI]
- 14 Observations on the Oman Shark,Iago omanensis (Triakidae), with emphasis on the morphological and cytological changes of the oviduct and yolk sac during gestation [DOI]
- 15 Gestational morphogenesis of the uterine epithelium of the gummy shark (Mustelus antarcticus) [DOI]
- 16 Myometrium of the spiny dogfish Squalus acanthias: peptide and steroid regulation [DOI]
- 17 Immunoglobulins in the eggs of the nurse shark, Ginglymostoma cirratum [DOI]
- 18 Morphological Changes in the Pregnant Uterus of the Smooth Hound Dogfish Mustelus schmitti Springer, 1939 (Gatuzo) (Condrichthyes, Triakidae): Microscopic Study and Phylogenetic Reproductive Implications [DOI]
- 19 Reproductive biology of Mustelus schmitti, Springer, 1939 in Puerto Quequén, Buenos Aires Province [DOI]
- 20 Urogenital morphology in the chimaeroid fish Hydrolagus colliei (lay and bennett) [DOI]
- 21 Electron microscopic observations on accommodations to pregnancy in the uterus of the spiny dogfish, Squalus acanthias [DOI]
- 22 The early stages of development in Carcharhinus plumbeus [DOI]
- 23 Reproductive Accomodations for Gestation in the Atlantic Guitarfish, Rhinobatos lentiginosus, Rhinobatidae
- 24 Microscopic structure of the gravid uterus in the little skate,Raja erinacea [DOI]
- 25 Studies on Sharks-VIII. Placentation in Mustelus griseus [DOI]
- 26 Physiology and pharmacology of the oviducts of Raja and Scyliorhinus [DOI]
- 27 The Form and Structure of the Uterus of Spadenose Shark, Scoliodon laticaudus
- 28 On the embryonic stage of the mottled ray,Aetomylus maculatvs (Gray), with a noteOn its breeding season
- 29 Female Reproductive Systems [DOI]
Cited by 2
N. Somsap, N. Srakaew, Kannika Chatchavalvanich · BMC Zoology · 2021
Showing 1 of 2 known citations — external sources report more than can currently be individually listed.
Article metrics
Real usage data collected on this platform.
2
Page views
0
PDF downloads
0
Outbound clicks
2
Citations
Views over time
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
Traffic sources
Referring site, by host.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.