지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The spermatogenesis of Siamese fighting fish, Betta splendens, belongs to Osphronemidae was investigated by light and electron microscopic observations. In primary spermatocyte stage, the nucleus was comparatively large ellipsoidal, and mitochondria showed a marked development in cytoplasm. In secondary spermatocyte stage, the germ cells were smaller than that of primary spermatocytes. The nucleus was a spherical shape and intercellular space was formed between germ cells. In spermatid stage, the early spermatids were not much different from a secondary spermatocyte. But, the chromatin condensation was occurred from the outside to the inside. The nucleus was more condensed. Intracellular space was larger than early spermatid. The mitochondria were rearranged in a middle piece, and occupied about half of the head part in early sperm. In sperm stage, the head of mature sperm was a spherical shape and had no acrosome. The flagellum was showed the typical 9+2 array of microtubules. Also, the tail of sperm had no lateral fins and outer coarse fibers. These ultrastructural characteristics can be used in classification of species.
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참고문헌 (25)
참고문헌 신청
Alfert M / 1956 / Chemical differentiation of nuclear proteins during spermatogenesis in the salmon / J. Biophys. Biochem. Cytol 2 : 109 ~ 114
Almeida F F / 2009 / Photoperid-Modulated testis matureation in Atlantic cod (Gadus morhua, L.) / Biol. Reprod 80 : 631 ~ 640
Bailey M / 1998 / The New Guide to Aquarium Fish: A Comprehensive and Authoritative Guide to Tropical Freshwater, Brackish, and Marine Fishes / Smithmark Publishers : 70 ~ 77
Bayarri M J / 2009 / Effects of continuous light on the reproductive system of European sea bass gauged by alterations of circadian variations during their first reproductive
Billard R / 1984 / Ultrastructural changes in the spermatogonia and spermatocytes of Poecilia reticulata during spermatogenesis / Cell Tissue Res 237 : 219 ~ 226
Almeida F F / 2009 / Photoperid-Modulated testis matureation in Atlantic cod (Gadus morhua, L.) / Biol. Reprod 80 : 631 ~ 640
Bailey M / 1998 / The New Guide to Aquarium Fish: A Comprehensive and Authoritative Guide to Tropical Freshwater, Brackish, and Marine Fishes / Smithmark Publishers : 70 ~ 77
Bayarri M J / 2009 / Effects of continuous light on the reproductive system of European sea bass gauged by alterations of circadian variations during their first reproductive
Billard R / 1984 / Ultrastructural changes in the spermatogonia and spermatocytes of Poecilia reticulata during spermatogenesis / Cell Tissue Res 237 : 219 ~ 226
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