Weronika Rupik

TL;DR: In this article, the authors reviewed available data on heat shock proteins (HSPs) expression and discussed their role during vertebrate development and found that varied HSP expressions seem to be very essential in the critical steps of embryonic and extra-embryonic structures formation and may correspond to cell movements, proliferation, morphogenesis and apoptosis, which occur during embryonic development.

TL;DR: The aim of the study was to investigate the development and differentiation of the adrenal glands in the grass snake during the early stages of ontogenesis, i.e., from egg-laying to hatching of the first specimens.

TL;DR: It is indicated that four distinct stages of cell differentiation can be identified during spermiogenesis, characterised by chromatin condensation, the development of flagellum, nuclear rotation, the formation of nuclear fossa and the elimination of excess cytoplasm.

TL;DR: The presence of alpha-keratin immunolabeling in layers that were keratinized, particularly in the oberhäutchen and beta-layers in embryos, indicated that they were not as hard as in fully mature individuals.

TL;DR: The differentiation of body cover in the grass snake ( Natrix natrix L.) over the full length of the embryo’s body at each developmental stage is analysed, indicating that scalation begins on the ventral body surface, and spreads dorsally.