Journal ArticleDOI
Ovarian Development: The Functional Importance of Germ Cell Interconnections
Bernard Gondos,Luciano Zamboni +1 more
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This article is published in Fertility and Sterility.The article was published on 1969-01-01. It has received 83 citations till now. The article focuses on the topics: Germ cell.read more
Citations
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Mouse ovarian germ cell cysts undergo programmed breakdown to form primordial follicles.
TL;DR: It is shown that mouse cysts undergo programmed breakdown between 20.5-22.5 dpc, during which approximately 33% of the oocytes survive to form primordial follicles, which suggests that perinatal germ cell loss is a developmentally regulated process that is distinct from the follicular atresia that occurs during adult life.
Journal ArticleDOI
Female mouse germ cells form synchronously dividing cysts
TL;DR: It is found that mouse germ cells are connected by intercellular bridges in the ovaries of 11.5 to 17.5 days postcoitum embryos; microtubules and organelles have been observed within these bridges.
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Comparative aspects of animal oogenesis.
Nina Matova,Lynn Cooley +1 more
TL;DR: A wealth of experimental evidence shows that mechanisms for establishing the germline and carrying out oogenesis in evolutionarily distant animals follow certain common themes.
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Rat gonadal and ovarian organogenesis with and without germ cells. An ultrastructural study
TL;DR: Busulphan a drug which selectively destroys primordial germ cells (PGC) was used to study its effects on the morphogenesis of the rat gonads and it was established that PGC can be eliminated before arriving at the genital ridge when the drug is administered on the 11 day post coital.
Journal ArticleDOI
The genetics of the mammalian gamete
TL;DR: Study of the association of the somatic and gametic genotypes with the gametic phenotype has been termed the genetics of gametes.
References
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Journal ArticleDOI
Improvements in epoxy resin embedding methods.
TL;DR: Epoxy embedding methods of Glauert and Kushida have been modified so as to yield rapid, reproducible, and convenientembedding methods for electron microscopy.
Journal ArticleDOI
Simple methods for "staining with lead" at high pH in electron microscopy.
TL;DR: It is thought that in these highly alkaline staining solutions lead is present as an hydroxide complex anion (plumbite ion) and that this anion is responsible for the staining, and the methods of preparation are based on this hypothesis.
Journal ArticleDOI
A quantitative and cytological study of germ cells in human ovaries
TL;DR: Foetal, neonatal and post-natal human ovaries were studied with the object of correlating cytological changes in the germ cells with fluctuations in their numbers, and three ‘waves’ of degeneration were observed, affecting oogonia undergoing mitosis, oocytes principally at the pachytene stage and oocytes at the diplotene stage.
Journal ArticleDOI
Studies on the fine structure of the mammalian testis i. differentiation of the spermatids in the cat (felis domestica)
Mario H. Burgos,Don W. Fawcett +1 more
TL;DR: Attention is directed to the frequent occurrence of pairs of spermatids joined by a protoplasmic bridge and the origin and possible significance of this relationship are discussed.
Journal ArticleDOI
The occurrence of intercellular bridges in groups of cells exhibiting synchronous differentiation.
TL;DR: The discovery of intercellular bridges in the two unrelated tissues discussed here suggests that a similar syncytial relationship may be found elsewhere in nature where groups of cells of common origin differentiate synchronously.
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The occurrence of intercellular bridges in groups of cells exhibiting synchronous differentiation.
The ultrastructure of oogonia and oocytes in the foetal and neonatal rat
L. L. Franchi,Anita M. Mandl +1 more