Sperm Ultrastructure of Pipistrellus savii velox

한국산 검은큰집박쥐(Pipistrellus savii velox)의 정자미세구조

  • Lee, Yu-Ri (Department of Biology, Graduate School, Kyungnam University) ;
  • Lee, Jung-Hun (Department of Science Education, Kyungnam University)
  • 이유리 (경남대학교 대학원) ;
  • 이정훈 (경남대학교 사범대학 과학교육과)
  • Received : 2011.05.24
  • Accepted : 2011.06.23
  • Published : 2011.06.30

Abstract

Sperm morphology of Pipistrellus savii velox was examined by transmission electron microscope. The sperm head of P. savii velox was bullet in shape. The sperm head was 3.1 ${\mu}m$ in length, whose posterior 3.0 ${\mu}m$ was occupied by a nucleus with 1.8 ${\mu}m$ in width. The segmented columns were about 14~15 in number. The total number of mitochondrial gyres was 57. Number of 1, 5, and 6 of the outer dense fibers were larger than the others. A fibrous sheath and longitudinal column of the principal piece were evidence, but the fibrous sheath was not seen at the end piece. In the present study, the length of the sperm head of P. savii velox were very shorter than those of other bats.

한국산 검은큰집박쥐(Pipistrellus savii velox)의 정자의 형태를 알아보기 위해서 투과전자현미경으로 관찰하였다. 검은 큰집박쥐 정자두부의 모양은 탄환형의 형태를 취하고 있었다. 정자두부의 전체길이는 3.1 ${\mu}m$이었으며, 핵의 길이는 3.0 ${\mu}m$, 폭은 1.8 ${\mu}m$으로서 정자두부의 대부분을 차지하고 있었다. 정자경부의 분절와(segmented column)는 약 14~15개로 구성되어져 있었으며, 중편부의 미토콘드리아 회전수는 57개 정도이었다. 또한 중편부의 외측섬유는 1, 5, 6번이 다른 것 보다 크다. 주편부에서는 섬유초(fibrous sheath)와 종 지주(longitudinal column)가 뚜렷하게 관찰되었지만 미부에서는 섬유초가 관찰되지 않았다. 이 연구에서 검은큰집박쥐는 정자두부의 길이가 다른 박쥐류 종보다도 매우 짧은 특징을 갖고 있었다.

Keywords

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