Applied Microscopy

Korean Society of Microscopy (한국현미경학회)
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Ultrastructure of the Abnormal Head of the Epididymal Spermatozoa in the Big White-Toothed Shrew, Crocidura lasiura

우수리땃쥐, Crocidura lasiura의 부정소 미부 정자의 비정상 두부 미세구조

  • Jeong, Soon-Jeong (Department of Oral Histology, College of Dentistry, Chosun University) ;
  • Yoo, Ji-Yun (Department of Microbiology, Division of Life Sciences/ Research Institute of Life Science, Gyeongsang National University) ;
  • Jeong, Moon-Jin (Department of Oral Histology, College of Dentistry, Chosun University)
  • 정순정 (조선대학교 치과대학 구강조직학교실) ;
  • 유지윤 (경상대학교 생명과학부 미생물학과/생명과학연구소) ;
  • 정문진 (조선대학교 치과대학 구강조직학교실)
  • Published : 2004.09.01
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Abstract

Normal and abnormal morphology of the epididymal spermatozoa in the big white-toothed shrew, Crocidura lasiura were studied with the light and electron microscopy. Normal spematozoa were observed with a few abnormal spermatozoa. This indicates that abnormal morphology is no absolute indicator of infertility. However, the existence of the abnormal spermatozoa is related to infertility. Especially abnormal morphology of the sperm head is definitely associated with infertility. The following types of abnormal head morphology of the epididymal spermatozoa in the wild healthy adults of the C. lasiura were described: 1) Nucleus with lack of condensation of the nucleoplasm 2) Destructed acrosome 3) Folded acrosome and plasma membrane 4) Separation of the acrosome from the nucleus 5) Acrosome with irregular condensation 6) Wrongly located granules of the apical body.

야생의 우수리땃쥐, Crocidura lasiura의 부정소 미부의 정상과 비정상 형태의 정자를 광학 및 전자현미경으로 비교 관찰하였다. 정상 정자와 함께 다수의 형태 비정상 정자가 관찰되었다. 이것은 비정상 정자의 존재가 개체의 생식력 없음을 나타내는 절대적 지표가 아님을 의미한다. 하지만 비정상 정자의 존재는 개체의 생식력 없음과 연관되며 특히 두부의 형태의 이상은 생식력 없음과 밀접한 관계가 있다. 건강한 야생의 우수리땃쥐, C. lasiura의 부정소 미부에서 관찰된 정자의 비정상 두부의 형태는 다음과 같은 유형으로 나타났다. 1) 핵질의 응축이 이루어지지 않거나 부분적으로 이루어진 형태 2) 첨체의 분열 혹은 파손이 나타나는 형태 3) 첨체 혹은 원형질막이 부분적 혹은 완전히 접혀진 형태 4) 첨체가 핵과 분리되는 형태 5) 첨체가 불규칙적으로 응축하는 형태 6) 잘못된 위치에서 관찰되는 첨단체

Keywords

References

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