치리 Hemiculter eigenmanni 정자의 미세해부학적 구조 (잉어목, 잉어과)

Anatomical Ultrastructure of Spermatozoa of Korean Sharpbelly, Hemiculter eigenmanni (Cypriniformes, Cyprinidae)

  • 김구환 (대구보건대학교 방사선과)
  • Kim, Kgu-Hwan (Department of Radiologic Technology, Daegu Health College)
  • 투고 : 2019.03.10
  • 심사 : 2019.03.26
  • 발행 : 2019.03.31

초록

치리 Hemiculter eigenmanni 정자의 미세구조를 전자현미경으로 관찰하였다. 치리 정자의 미세구조는 잉어류 정자의 일반적인 구조와 유사하게 첨체가 없는 둥근두부, 미토콘드리아를 포함하는 짧은 중편 그리고 긴 단편모로 구성되어 있었다. 핵물질은 매우 농축되어 있고 핵와는 얕게 함입되어 있었다. 중편부에는 8~10개의 미토콘드리아가 2~3층으로 배열되어 있었다. 중편부의 세포질과 소기관은 비대칭적으로 분포하고 있으며, 두 중심립 사이의 각도는 $145^{\circ}$로 나타났다. 핵과 편모는 두 중심립의 각도만큼 기울어져 있었다.

The spermatozoa of Hemiculter eigenmanni is similar to other cyprinid by spherical head containing a nucleus with highly condensed chromatin, a short midpiece with mitochondria and a flagellum located tangentially to the head. The fine structure of cyprinid spermatozoa described classical characteristics of Cyprinidae spermatozoon comprising the absent of acrosome, the shallow nucleal fossa, postnuclear distribution of mitochondria and the lateral insertion of flagellum. However there were some structural differences for their morphology, in the mitochondria and the orientation of centrioles. The proxomal and distal centrioles are oriented approximately $145^{\circ}$ to each other. The mitochondria of 8 or 10 in number are arranged in two or three layers.

키워드

참고문헌

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