Results 141 to 150 of about 7,530 (183)
Some of the next articles are maybe not open access.
Centrosome reduction during mammalian spermiogenesis
1999Publisher Summary Spermiogenesis is the terminal differentiation of postmeiotic germ cells into spermatozoa. The cellular and molecular pathways of centrosome reduction during mouse, rhesus, and human spermiogenesis are described. This chapter discusses the fundamental events and stages of centrosome reduction during mammalian spermiogenesis.
G, Manandhar, C, Simerly, G, Schatten
openaire +2 more sources
2009
One of the most dramatic chromatin remodeling and genome reorganization ever observed takes place during the post-meiotic maturation of male germ cells. Indeed, after meiosis, early male haploid cells, or spermatids, inherit a somatic-like chromatin-based genome organization.
Sophie Rousseaux, Myriam Ferro
openaire +1 more source
One of the most dramatic chromatin remodeling and genome reorganization ever observed takes place during the post-meiotic maturation of male germ cells. Indeed, after meiosis, early male haploid cells, or spermatids, inherit a somatic-like chromatin-based genome organization.
Sophie Rousseaux, Myriam Ferro
openaire +1 more source
1987
The two maturation divisions of each spermatocyte result in four haploid cells, spermatids. These differentiate into spermatozoa, a process called spermiogenesis which ends when the spermatozoa are released from the seminiferous epithelium. After the haploid round spermatids are formed, their nuclear and cytoplasmic components undergo a complex series ...
openaire +1 more source
The two maturation divisions of each spermatocyte result in four haploid cells, spermatids. These differentiate into spermatozoa, a process called spermiogenesis which ends when the spermatozoa are released from the seminiferous epithelium. After the haploid round spermatids are formed, their nuclear and cytoplasmic components undergo a complex series ...
openaire +1 more source
Cytodifferentiation during spermiogenesis in Rhabditis pellio
Journal of Ultrastructure Research, 1972Investigations of atypical sperm development in Rhabditis pellio have revealed an unusually clear and close morphological relationship between the endoplasmic reticulum, dictyosomes, fibrous bodies, and surface membrane specializations. It is postulated that the ribosomes, endoplasmic reticulum, and dictyosomes are involved in the synthesis and ...
H W, Beams, S S, Sekhon
openaire +2 more sources
Spermiogenesis in the anthozoan Aiptasia pallida
Tissue and Cell, 1980Fine structural aspects of spermiogenesis in the anthozoan Aiptasia pallida have been examined. Nuclear condensation is similar to that reported for other anthozoans. The middle piece is formed by fusion of a few small mitochondria and is doughnut-shaped.
openaire +2 more sources
Spermatogenesis and Spermiogenesis, Fish
2018Spermatogenesis in fish resembles that of other vertebrates: the germ cells develop in close contact with a somatic cell type, the Sertoli cells that provide the required structural, nutritional and regulatory support. In fish, initially one or two Sertoli cells envelop a single type A spermatogonium, thus forming the earliest stage of a spermatogenic ...
Schulz, Rüdiger W. +1 more
openaire +2 more sources
TDRD7 participates in lens development and spermiogenesis by mediating autophagosome maturation
Autophagy, 2021Xuyang Liu, Wei Li, Juan Du
exaly