ダウンロード数 : ?
タイトルヨミ
ユウビ リョウセイルイ センショクタイ ノ ドウゲンタイ ブイ ノ ケイタイ
日本語以外のタイトル
Light Microscopical Observation of the Centromere Region in the Urodelan Chromosomes
ファイル
言語
英語
著者
瀬戸 武司
内容記述(抄録等)
Structure of the centromere region in urodelan chromosomes was studied by light microscopy. The centromere region can not be seen as a particular structure in routine cytological preparations. Published works employing the modified cytological technique for light microscopy presented a quadruple structure or a spotted structure. However, there are still problems on the results since the figures have not given persuaded visualization in comparable to the electron microscopy.
Large sized chromosomes in urodelan cells were favorable to observe more detail structure than the mammalian chromosomes. In squashed preparation of uncolchicinized chromosomes of Cynops pyrrhogaster, the majority of chromosomes in the cell showed the stretched-out centromere at metapahse. The centromere region was raised to outside toward the poles on opposite side of sister chromatid. The structure was quite unlike with the previous studies which were prepared by rather violent treatment for the chromosome details. The result indicated that the possibility of destructive effects by the cytological treatments, such as colchicine and hypotonic solution, have disturbed the illustration of a real feature of the delicate centromeres.
掲載誌名
島根大学教育学部紀要. 自然科学
15
開始ページ
15
終了ページ
22
ISSN
05869943
発行日
1981-12-25
NCID
AN00107941
出版者
島根大学教育学部
出版者別表記
The Faculty of Education Shimane University
資料タイプ
紀要論文
部局
教育学部
他の一覧
このエントリーをはてなブックマークに追加