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한국산 관박쥐 (Rhinolophus ferrumequinum korai)에 있어서의 정자변태
Spermiogenesis in the Korean Greater Horseshoe Bat, Rhinolophus ferrumequinum korai

이정훈   (Department of Biology, College of Natural Sciences, Kyungnam UniversityUU0000075  ); 최병진   (Department of Biology, College of Natural Sciences, Kyungnam UniversityUU0000075  ); 손성원   (Department of Biology, College of Natural Sciences, Kyungnam UniversityUU0000075  );
  • 초록

    In order to study process of spermiogenesis of the Korean greater horseshoe bat, Rhinolophus ferrumequinum korai, the cycle of seminiferous epithelium was examined by the light and electron microscope and the following results were obtained based on the epithelial cell differentiation. 1. Spermiogenesis occurred from early July to mid-Octber, and spermatogenic activity was vigorous from mid-August to late September. Spermatocytes including spermatogonia were found to be degenerated in only July. It is deduced that the degeneration serves as the mechanism to regulate effective use of energy to prepare for mating and hibernating periods, and regulation of breeding cycle. 2. Spermiogenesis of the Korean greater horseshoe bat was divided according to differentiation of the cell structure, into Golgi, cap, acrosome, maturation and spermiation phases; Golgi, cap and spermiation phases were further divided into two steps of early and late phase respectively, and acrosome phase into three steps of early, mid and late phases, and maturation phase has only one step. Hence, the spermiogenesis consists of ten phases. The first research was done in this article on the changes of chromatin with nucleus, the time of appearance and disappearance of chromatin granules, in case of Korean greater horseshoe bat (Rhinolophus ferrumequinum korai). Chromatin granule began to be condensed in late Golgi and the condensation proceeded to form an irregular mass of a electron-dense chromatin in a form of circular cylinder in the center of nucleus at the phase of maturation. Finally, the chromatin condensation proceeded and perfect nucleus of sperm with homogeneous density was formed when the sperm was separated from Sertoli cell. Therefore, appearance and disappearance of chromatin granules occurred in the period of time between late Golgi and maturation phase, The tail of sperm began to develop in early cap phase, Numerous lipid droplets were obseved in the cytoplasm of spermatids during the maturation phase, which seemed to be used as energy source necessary to make mature sperm during spermiogenesis.


 저자의 다른 논문

  • 손성원 (15)

    1. 1989 "한국산 박쥐류의 계통분류학적 연구 1. Rhinolophidae의 1종과 Vespertilionidae의 6종에 대한 분류학적인 재검토 및 한국산 익수류상의 천이" 동물학회지 = The Korean journal of zoology 32 (4): 374~392    
    2. 1993 "한국산 관박쥐 (Rhinolophus ferrumequinum korai)의 웅성생식 pattern에 관한 연구 1. 세정관상피의 주기 및 정소의 조직변화" 동물학회지 = The Korean journal of zoology 36 (1): 36~50    
    3. 1993 "한국산 관박쥐 (Rhinolophus ferrumequinum korai)의 웅성생식 pattern에 관한 연구 II. 정자 유입, 저장 및 소멸에 따른 정소상체 미부의 조직변화" 동물학회지 = The Korean journal of zoology 36 (1): 51~66    
    4. 1994 "한국산 집고양이(Felis domesticu)에서의 정자변태" 동물학회지 = The Korean journal of zoology 37 (3): 416~427    
    5. 1995 "한국산 등줄쥐(Apodemus agrarius coreae)에서의 정자변태" 동물학회지 = The Korean journal of zoology 38 (3): 395~404    
    6. 1995 "한국산 긴날개 박쥐(Miniopterus schreibersi fuliginosus)의 정자변태" 동물학회지 = The Korean journal of zoology 38 (3): 405~416    
    7. 1995 "큰발웃수염박쥐 (Myotis macrodactylus)에 있어서의 정자변태" 한국전자현미경학회지 = Korean journal of electron microscopy 25 (1): 96~110    
    8. 1996 "한국산 대륙밭쥐(Clethrionomys rufocanus regulus)의 정자변태" The Journal of biomedical laboratory sciences = 대한의생명과학회지 2 (1): 57~69    
    9. 1997 "Morphological Characteristics of Sperm in the Korean Striped Field Mouse, Apodemus agrarius coreae: Possible Role of Sperm Neck in the Movement of Sperm Head" Korean journal of biological sciences 1 (2): 371~379    
    10. 1997 "한국산 물윗수염박쥐(Myotis daubentonii ussuriensis)의 정자변태" 발생과 생식 = Development and reproduction 1 (1): 9~24    

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