Abstract
AbstractInduction of germinal vesicle breakdown and reinitiation of the meiotic process resulted following exposure of immature Spisula solidissima oocytes to divalent ionophore A23187. Meiosis continued to completion in the presence of the ionophore; however, parthenogenetic development of the gametes did not occur. Incubation of oocytes in calcium deficient media (Ca++free or Ca++Mg++free seawater) but not Mg++ free seawater inhibited ionophore induced maturation. Effects of calcium deficiency were reversible. The results suggest that nuclear disintegration and the meiotic process induced by sperm are mediated by ionic stimuli and that the establishment of meiotic arrest is linked to the availability of calcium with in the oocyte.
References
8
Referenced
59
10.2307/1538639
{'key': 'e_1_2_1_3_1', 'first-page': '310', 'volume-title': "Fertilization In: Marshall's Physiology of Reproduction", 'author': 'Austin C. R.', 'year': '1960'}
/ Fertilization In: Marshall's Physiology of Reproduction by Austin C. R. (1960)- Cavanaugh G.1956Formulae and Methods V. of The Marine Biological Laboratory G. Cavanaugh ed.
10.1073/pnas.71.2.408
- Mead A. D.1898The rate of cell‐division and the functions of the centrosome. Biol. Lectures Marine Biol. Lab. Woods Hole 1896 and 1897pp.203–218.
{'key': 'e_1_2_1_7_1', 'first-page': '1598', 'article-title': 'Properties of ionophores with broad range cation selectivity', 'volume': '32', 'author': 'Pressman B. C.', 'journal-title': 'Fed. Proc.'}
/ Fed. Proc. / Properties of ionophores with broad range cation selectivity by Pressman B. C.10.1095/biolreprod10.2.150
10.1073/pnas.71.5.1915
Dates
Type | When |
---|---|
Created | 20 years, 2 months ago (June 11, 2005, 5:42 a.m.) |
Deposited | 1 year, 9 months ago (Nov. 12, 2023, 2:12 a.m.) |
Indexed | 1 year, 9 months ago (Nov. 12, 2023, 7:11 p.m.) |
Issued | 50 years, 6 months ago (March 1, 1975) |
Published | 50 years, 6 months ago (March 1, 1975) |
Published Online | 20 years, 3 months ago (May 13, 2005) |
Published Print | 50 years, 6 months ago (March 1, 1975) |
@article{Schuetz_1975, title={Induction of nuclear breakdown and meiosis in Spisula solidissima oocytes by calcium ionophore}, volume={191}, ISSN={1097-010X}, url={http://dx.doi.org/10.1002/jez.1401910313}, DOI={10.1002/jez.1401910313}, number={3}, journal={Journal of Experimental Zoology}, publisher={Wiley}, author={Schuetz, Allen W.}, year={1975}, month=mar, pages={433–440} }