Applied Microscopy

Korean Society of Microscopy (한국현미경학회)
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Morphological Differences of the Flight Muscle among Xylocopa appendiculata circumvolans Smith, Davidins lunatus B. and Serrognathus platymelus castanicdor M.

어리호박벌, 쇠측범잠자리, 넓적사슴벌레의 날개근육의 형태학적 차이

  • 문혜정 (영남대학교 이과대학 생물학과) ;
  • 반영훈 (영남대학교 이과대학 생물학과) ;
  • 조현국 (경운대학교 안경광학과) ;
  • 박원학 (영남대학교 이과대학 생물학과) ;
  • 이종욱 (영남대학교 이과대학 생물학과)
  • Published : 2002.09.01
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Abstract

The present study was performed to compare the morphological differences of flight muscles among 3 species from insects (Xylocopa appendiculata circumvolans Smith, Davidins lunatus B. and Serrognathus platymelus castanicdor M.) by investigating ultrastructural observation and stereological analysis. Xylocopa appendiculata circumvolans Smith has the most flight hours. In addition, the number and arrangement of mitochondria and the structure of sarcomere were similar to those of vertebrates. However sarcomere structure of Davidins lunatus B. was irregular and the sarcomere length was longer than that of Xylocopa appendiculata circumvolans Smith. In Serrognathus platymelus castanicdor M. which has the least flight hours, the length of sarcomere appeared longer than that of Davidins lunatus B. In results of stereological analysis, Serrognathus platymelus castanicdor M. had the highest volume density of myofibrils in all species. The volume and numerical density of mitochondria and the volume density of sarcoplasmic reticulum were highest Xylocopa appendiculata circumvolans Smith and Davidins lunatus B. respectively. This study suggests that the flight hours and flight pattern by different ecological habitats may cause the morphological changes of flight muscle.

비행량과 비행형태가 다른 곤충 날개근육의 차이를 형태학적 관점에서 알아 보고자 어리호박벌 (벌목, 꿀벌과), 쇠측범잠자리 (잠자리목, 부채장수잠자리과), 넓적사슴벌레(딱정벌레목, 사슴벌레과)의 3종을 실험에 이용하였다. 실험군은 광학현미경적 방법, 투과전자현미경적 방법, 입체해석학적 방법을 이용하여 다음과 같은 결과를 얻었다. 광학현미경적 관찰 결과, 비행량이 많은 어리호박벌은 매우 규칙적인 분포를 나타내는 근원세사 사이에서 많은 수의 사립체가 관찰되었고, 근절도 짧게 나타났다. 쇠측범잠자리는 근절이 길어 어리호박벌과 비행형태의 차이가 있음을 반영했다. 날개근육을 거의 사용하지 않는 넓적사슴벌레는 사립체가 거의 관찰되지 않았고, 근절은 매우 길게 나타났다. 전자현미경적 관찰 결과, 어리호박벌과 넓적사슴벌레에서 적은 수의 근형질세망과 가로소관이 관찰되었고, 쇠측범잠자리에서는 근형질세망이 많이 분포하였으며 지방소적이 많이 관찰되었다. 입체해석학적 관찰 결과, 근원섬유의 체적밀도는 넓적사슴벌레에서 가장 높았으며, 어리호박벌, 쇠측범잠자리의 순으로 낮게 나타났다. 사립체의 체적밀도는 어리호박벌에서 가장 높았으며, 근형질세망의 체적밀도는 쇠측범잠자리에서 가장 높게 관찰되었다. 사립체의 수밀도는 어리호박벌에서 가장 높았다. 따라서 비행량과 비행형태에 따른 곤충 날개근육의 형태학적 차이는 운동량과 운동형태에 영향을 미치는 서식습성에 의해 변화되는 것으로 나타났다.

Keywords

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