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Detailed morphological analysis of axolotl sperm
2021
Keskin, I. | Gürgen, D.G. | Avinca, D. | Özdemir, E.M. | Keskin, S.U. | Karabulut, S.
The axolotl has extraordinary regeneration capacity compared to other vertebrates. This remarkable potential has been attributed to its life-long neoteny, characterized by the exhibition of embryonic characteristics at the adult stage. A recent study provided a detailed morphological analysis of the sperm morphology of the Ambystoma mexicanum using routine and detailed histological techniques. The primary purpose of the present study is to describe a simple and inexpensive method for evaluating the morphology of axolotl sperm. In this study, spermatophore structures were collected and spread on slides and air-dried. The slides were stained with periodic acid Schiff, toluidine blue, Masson’s trichrome, Giemsa, Spermac, and Diff-Quik dye for a morphological examination. The slides were coated with gold/palladium for a scanning electron microscopy examination. The sperm of the axolotl consisted of an elongated head, a neck, and a flagellum covered with an undulating membrane. The lengths of the midpiece, tail, and head were 8.575 µm, 356.544 µm, and 103.661 µm, respectively. In the flagellum part, the wavy membrane structure, whose function has not been explained, surrounds the tail. The data obtained from this study will constitute an important step in designing future research on the reproductive and regeneration capacity of the axolotl.
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Jin, J.K. | Shin, T.K. (Cheju National University, Cheju (Korea Republic). Department of Veterinary)
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1992
Kim, Y.J. (Chonbuk National University, Chonju (Korea Republic). College of Veterinary Medicine)
Studies on functional elevations of sperm-host glands in domestic hens, 3; Comparison of stored-spermatozoa levels in the utero-vaginal glands and the infundibular glands
1991
Kwak, S.D. (Gyeongsang National Univ., Chinju (Korea Republic). Coll. of Veterinary Medicine)
Effects of bovine antisperm antibodies on fertilizing capacity of bovine spermatozoa
1997
Kim, K.S. (University of Pennsylvania Medical center, Pennsylvania (USA). Division of Reproductive biology) | Roh, S.H. | Lee, K.N. | Lee, B.C. | Hwang, W.S. (Seoul National University, Seoul (Korea Republic). College of Veterinary medicine)
Appearance frequency of spematozoa bearing B-body in semen of Korean native bull and cells bearing F-body in mouse tissues
1993
Kwak, S.D. | Kang, W.H. | Park, S.S. (Gyeongsang National University, Chinju (Korea Republic). College of Veterinary Medicine)
Spermiogenesis and fine structure of the sertoli cell junctional specialization in the Jindo dog - (2) - Fine structure of the sertoli cell junctional specialization
1992
Park, Y.S. | Lee, J.H. (Chonnam National University, Kwangju (Korea Republic). College of Veterinary Medicine)
Spermiogenesis and fine structure of the sertoli cell junctional specialization in the Jindo dog - (1) - Studies on spermiogenesis in the Jindo dog
1992
Park, Y.S. | Lee, J.H. (Chonnam National University, Kwangju (Korea Republic). Department of Veterinary Anatomy)
Testicular toxicity of DA-125, a new anthracycline anticancer agent, in beagle dogs
1997
Kim, J.C. | Cha, S.W. | Song, S.W. | Chung, M.K. (Korea Research Institute of Chemical Technology, Taejeon (Korea Republic). Toxicology Research Center)
Morphological change of sertoli cells in the pheasant (Phasianus colchicus) testis in active and inactive phase of spermatogenesis
1994
Yang, H.H. | Paik, Y.K. | Kim, I.S. (Chonbuk National University, Chonju (Korea Republic). College of Veterinary Medicine)