Results 141 to 150 of about 316,768 (413)
Development, 2017 Activation of the egg by the sperm is the first, vital stage of embryogenesis. The sperm protein PLCζ has been proposed as the physiological agent that triggers the Ca2+ oscillations that normally initiate embryogenesis. Consistent with this, recombinant
A. Hachem +12 more
semanticscholar +1 more source
Stephane Leduc and the vital exception in the Life Sciences [PDF]
arXiv, 2015 Embryogenesis, the process by which an organism forms and develops, has long been and still is a major field of investigation in the natural sciences. By which means, which forces, are embryonic cells and tissues assembled, deformed, and eventually organized into an animal?
arxiv
Magnitude and significance of the peak of early embryonic mortality [PDF]
arXiv, 2020 Biologically, for any organism life does not start at birth but at fertilization of the embryo. Embryonic development is of great importance because it determines congenital anomalies and influences their severity. Whereas there is detailed qualitative knowledge of the successive steps of embryonic development, little is known about their probabilities
arxiv
Programmed cell death and genetic stability in conifer embryogenesis [PDF]
, 2007 Somatic embryogenesis, the generation of embryos from somatic cells, is a valuable tool for studying embryology. In addition, somatic embryos can be used for large-scale vegetative propagation, an application of great interest for forestry.
Helmersson, Andreas
core
Using Morphogenic Genes to Improve Recovery and Regeneration of Transgenic Plants
Plants, 2019 Efficient transformation of numerous important crops remains a challenge, due predominantly to our inability to stimulate growth of transgenic cells capable of producing plants.
Bill Gordon-Kamm +6 more
doaj +1 more source
Endothelial PD‐1 Regulates Vascular Homeostasis and Oligodendrogenesis during Brain Development
Advanced Science, EarlyView.Vascular endothelial cells are fundamental for angiogenesis and brain development. This study reveals that endothelial programmed cell death 1 (PD‐1) is critical for cerebral angiogenesis and blood brain barrier (BBB) maturation. It also mediates interaction with oligodendrocyte precursor cells (OPCs), modulating OPCs differentiation and myelination ...
Tingting He +7 more
wiley +1 more source
Development, 2018 For over a century, researchers have been comparing embryogenesis and regeneration hoping that lessons learned from embryonic development will unlock hidden regenerative potential. This problem has historically been a difficult one to investigate because
Jacob F. Warner +5 more
semanticscholar +1 more source
Zygotic combinatorial process in plants [PDF]
arXiv, 2012 Experimental data that prove the existence of the zygotic combinatorial process occurring in an embryogenesis-entering zygote are presented in the paper. The zygotic combinatorial process is found when analyzing F1 hybrid plants obtained from crossing homozygous forms different, minimum, in two marker enzymes, and it is found in that hybrid plant which,
arxiv
Oogenesis and egg development in triatomines: a biochemical approach
Anais da Academia Brasileira de Ciências, 2005 In triatomines, as well as in other insects, accumulation of yolk is a process in which an extra-ovarian tissue, the fat body, produces yolk proteins that are packed in the egg.
Georgia C. Atella +5 more
doaj +1 more source
Advanced Science, EarlyView.This work maps 3′‐UTR APA across mouse fetal development and tissues, identifying conserved sequence determinants that influence pAS choice. In fetal brain tissues, complex APA dynamics during development are potentially regulated by RBPs like Rbm38, which restrict distal pAS usage.
Qin Wang, Xin Chen, Xiao‐Ou Zhang
wiley +1 more source