Salt soluble without jelly-like component from the oviducal gland induces chorionic expansion in the ova of the Japanese common squid Todarodes pacificus,
Salt soluble without jelly-like component from the oviducal gland induces chorionic expansion in the ova of the Japanese common squid Todarodes pacificus,
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不含来自输卵管腺的果冻状成分的盐溶性物质可诱导日本鱿鱼 Todarodes pacificus 的卵子中绒毛膜扩张,
DOI:
10.1080/07924259.2016.1229234
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Sakurai.
中科院分区:
文献类型:
--
作者:
Adachi;K.;Yabumoto;M.;Yoo;H.;Morioka;K.;Ikeda;Y.;Ueta;Y.;Sakurai.
In vitrofertilization of squid requires the jelly substance found in the female oviducal gland; yet, the active component of this substance that facilitates fertilization remains unknown. Here, we used biochemical methods to separate the jelly substance ofTodarodes pacificus(Oegopsida) andSepioteuthis lessoniana(Myopsida family) into four fractions; specifically, two water soluble fractions (Molecular weight > 10,000 and < 10,000), one salt soluble fraction, and one insoluble fraction. The salt soluble fraction ofT. pacificusinduced chorionic expansion (perivitelline space formation), which precedes the normal embryonic development of ova. In contrast, the salt soluble fraction ofS. lessonianaelicited insufficient expansion of the ova, only producing embryos with high abnormality rates. These results suggest that the salt soluble component(s) (not the jelly-like substances) in the oviducal gland induce chorionic expansion and hatching in Oegopsida, and that these components may be similar in Myopsida.