We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Chromatin and chromosomal fine structure in spermatogenesis of some species of amphibians.
- Authors
Gavrila, Lucian; Mircea, Liliana
- Abstract
Spermatogenesis is a complex differentiation process which is characterised, among other features, by conspicuous stage-specific nuclear events such as the pairing of homologous chromosomes coupled with the formation of synaptonemal complexes, the replacement of histones with sperm-specific proteins during spermiogenesis and, as a result, chromatin condensation and its inactivation in sperm cells. The chromatin of spermatogenic cells undergoes dramatic conformational changes upon differentiation from spermatogonia to mature spermatozoa. During the haploid stage of spermatogenesis, histones are gradually replaced, firstly by transition proteins and later by sperm-specific proteins. As a result of the high degree of condensation and inactivation of spermatid and sperm chromatin, Sertoli cells are responsible for the nourishment of germ cells with ribosomal RNA and nutritive substances.
- Publication
Zygote, 2001, Vol 9, Issue 3, p183
- ISSN
0967-1994
- Publication type
Article
- DOI
10.1017/S0967199401001198