Ultrastructural Characteristics of the Testis, Spermatogenesis and Taxonomic Values of Sperm Morphology in Male Ruditapes philippinarum in Western Korea
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Ultrastructural characteristics of the germ cells and accessory cells in testis during spermatogenesis and taxonomic values of mature sperm morphology of Ruditapes philippinarum were investigated by the transmission electron microscope and scanning electron microscope observations. The testis is the diffuse organ that consists of branching acini containing developing germ cells and accessory cells associated with spermatogenesis. The morphology of the spermatozoon is of the primitive type and is somewhat different to those of other bivalves. The morphologies of the sperm nucleus type and the acrosome shape of this species have a cylinderical type and a modified cone shape, respectively. As some ultrastructural characteristics of the acrosomal vesicle, the peripheral parts of two basal rings show electron opaque part,while the apex part of the acrosome shows electron lucent part. These characteristics of sperm belong to the family Veneridae in the subclass Heterodonta, unlike a characteristic of the subclass Pteriomorphia showing all part of the acrosome being composed of electron opaque part. In particular, a cylinder-like nucleus of the sperm is curved. The spermatozoon is approximately 48-51 μm in length, including a long acrosome (about 2.40 μm in length), a curved sperm nucleus (about 3.40 μm in length), and a tail flagellum. The axoneme of the sperm tail shows a 9+2 structure.
Abstract
Ultrastructural characteristics of the germ cells and accessory cells in testis during spermatogenesis and taxonomic values of mature sperm morphology of Ruditapes philippinarum were investigated by the transmission electron microscope and scanning electron microscope observations. The testis is the diffuse organ that consists of branching acini containing developing germ cells and accessory cells associated with spermatogenesis. The morphology of the spermatozoon is of the primitive type and is somewhat different to those of other bivalves. The morphologies of the sperm nucleus type and the acrosome shape of this species have a cylinderical type and a modified cone shape, respectively. As some ultrastructural characteristics of the acrosomal vesicle, the peripheral parts of two basal rings show electron opaque part,while the apex part of the acrosome shows electron lucent part. These characteristics of sperm belong to the family Veneridae in the subclass Heterodonta, unlike a characteristic of the subclass Pteriomorphia showing all part of the acrosome being composed of electron opaque part. In particular, a cylinder-like nucleus of the sperm is curved. The spermatozoon is approximately 48-51 μm in length, including a long acrosome (about 2.40 μm in length), a curved sperm nucleus (about 3.40 μm in length), and a tail flagellum. The axoneme of the sperm tail shows a 9+2 structure.
참고문헌 (25)
- Bernard RTF, "The fine structure of the sperm and spermatid differentiation in the brown mussel Pernaperna", South Africa Journal of Zoology, 20, pp.5~9 (1986)
- 최기호, "한국 서해산 바지락, Ruditapes phiippinarum의 난소 성숙", 발생과 생식, 9(2), pp.123~134 (2005), 한국발생생물학회
- Chung EY, "Gametogenesis and sexual maturation of the surf clam, Mactra veneriformis on the west coast of Korea", Malacologia, 42, pp.149~163 (2000)
- 정의영, "Ultrastructures of Germ Cells and the Accessory Cells During Spermatogenesis in Male Gomphina veneriformis (Bivalvia: Veneridae) on the East Sea of Korea", The Korean Journal of Malacology, 26(1), pp.51~62 (2010), 한국패류학회
- Chung EY, "Gonadal development, age and growth of the shortnecked clam, Ruditapes philippinarum (Pelecypoda: Veneridae), on the coast of Kimje", Kor J Malacol, 19, pp.38~54 (1994)
- 정예영, "Spermatogenesis and Sexual Maturation in Male Mactra chinensis (Bivalvia: Mactridae) of Korea", Animal Cells and Systems, 11(2), pp.227~234 (2007), 한국통합생물학회
- Hee-Woong Kang, "Germ Cell Differentiations during Spermatogenensis and Taxonomic Values of Mature Sperm Morphology of Atrina (Servatrina) pectinata (Bivalvia, Pteriomorphia, Pinnidae)", 발생과 생식, 16(1), pp.19~29 (2012), 한국발생생물학회[DOI]
- Dorange G, "Ultrastructural characteristics of spermatogenesis in Pecten maximus (Mollusca, Bivalvia)", Inver Reprod & Develop, 15, pp.109~117 (1989)
- Drozdov TA, "Spermatogenesis and the sperm ultrastructure in the mussel Modiolus difficillis", Tsitologiia, 28, pp.1069~1074 (1986)
- Eckelbarger KJ, "Ultrastructure of the gona and gametogenesis in the eastern oyster, Crassostrea virginica. II. Testis and spermatogenesis", Mar Biol, 127, pp.89~96 (1996)
- Eckelbarger KJ, "Ultrastructure of sperm development and mature sperm morphology in three species of commensal bivalves (Mollusca: Galeommatoidea)", J Morph, 205, pp.63~75 (1990)
- Franzén Å, "Phylogenetic aspects of the mophology spermatozoa and spermiogenesis, In Comparative Spermatology", pp.573~ (1970), Accademia Nationale Dei Lincei
- Franzén Å, "Ultrastructural studies of spermatozoa in three bivalve species with notes on evolution of elongated sperm nucleus in primitive spermatozoa", Gamete Research, 7, pp.199~214 (1983)
- Gaulejac de J, "An ultrastructural study of gametogenesis of the marine bivalve Pinna nobilis (Linnaeus, 1758). II. Spermatogenesis", Journal of Molluscan Study, 61, pp.393~403 (1995)
- Healy JM, "Spermiogenesis and spermatozoa in the relict bivalve genus Neotrigonia: relevance to trigonioid relationships, particularly Unionoidea", Mar Biol, 103, pp.75~85 (1989)
- Healy JM, "Sperm ultrastructure in in the marine bivalve families Carditidae and Crassatellidae and its bearing on unification of the Crasssatelloidea with the Carditoidea", Zool Sci, 24, pp.21~28 (1995)
- Hodgson AN, "Ultrastructure of the sperm and spermatogenesis of three species of Mytilidae (Mollusca, Bivalvia)", Gamete Res, 15, pp.123~135 (1986)
- Jamieson BGM, "Fish Evolution and Systematics: Evidence from Spermatozoa", pp.181~194 (1991), Cambridge University Press
- 김진희, "Ultrastructure of the Testis and Germ Cell Development During Spermatogenesis in Male Crassostrea gigas (Bivalvia: Ostreidae) in Western Korea", The Korean Journal of Malacology, 26(3), pp.235~244 (2010), 한국패류학회
- 김진희, "Ultrastrucure of Germ Cells during Spermatogenesis and Some Characteristics of Sperm Morphology in Male Mytilus coruscus (Bivalvia: Mytilidae) on the West Coast of Korea", The Korean Journal of Malacology, 26(1), pp.33~43 (2010), 한국패류학회
- Kim JH, "Spermatogenesis and comparative ultrastructure of spermatozoa in several species of Korean economic bivalves (13 families, 34 species)", 박사, pp.2001
- Ponurovsky SJ, "The reproductive biology of the Japanese littleneck. Tapes philippinarum (A. Adams & Reeve, 1850) (Bivalvia: Venerida)", J Shellfish Res, 11, pp.265~277 (1992)
- Popham JD, "Comparative spermatozoon morphology and bivalve phylogeny", Malacol Rev, 12, pp.1~20 (1979)
- Sousa M, "Ultrastructural and cytochemical study of spermatogenesis in Scrobicula riaplana (Mollusca, Bivalvia)", Gamete Res, 24, pp.393~401 (1989)
- Tanaka Y, "Spawning season of important bivalves in Ariake Bay Ⅲ. Tapes philippinarum", Bull Jap Soc Sci Fish, 19, pp.1165~1167 (1954)