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ID 18618
Eprint ID
18618
FullText URL
Thumnail 72_1307.pdf 337 KB
Title Alternative
The Effects of OX (Uusaturated Fatty Acid Fraction From the Irradiated Rabbit Liver) on the Fertilization and Cleavage of Sea Urchin Egg
Author
Seno, Satimaru
Yamamoto, Michio
Utsumi, Kozo
Shiwaku, Midori
Akagi, Eiko
Iguchi, Yoshiko
Kobayashi, Junichi
Ueno, Hisako
Abstract
The effects of the OX substance, which was extracted from the liver of irradiated rabbits, on the sperm and egg, unfertilized and fertilized eggs of sea urchin (Hemicentrotus pulcherrimus) have been observed. 1. The sperms exposed to OX showed a decreased mortility and lost the ability to stimul to the egg to raise up fertilizing membrane suggesting the inability of giving physical shock to the egg surface or the damage of acrosome. 2. The unfertilized eggs exposed to OX retain the ability of the formation of fertiliging membrane and cleavage but showed remarkable delay in both the length of time for the membrane formation and cleavage. 3. The most sensitive effects on the fertilized eggs have been observed on the initial stage of fusion of sperm and egg nuclei and the metaphase. Immediately after the fertilization in the egg exposed to OX the fusion of sperm and egg nuclei was inhibited and in the cells on metaphase the cleavage was delayed by the prolonged period of transition from metaphase to telophase. 4. From the results with the consideration of the effects of X-rays on cleavage appearing in the past report the authors concluded the OX will be the essential substance representing the effects of X-rays on the cell cleavage.
Published Date
1960-07-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume72
Issue
issue5-7
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
1307
End Page
1311
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/72/5-7/72_5-7_1307/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma