An essay on the similarities and differences between inductive interactions in anuran and urodele embryos.
As a first step towards providing a conceptual approach to understanding similarities and differences in the mechanisms which guide inductive interactions among related organisms (e.g. various amphibia), a set of five principles is offered here. These principles were formulated by analyzing literature examples of classical embryological phenomena and by performing experiments with activin, a peptide growth factor which is currently suspected to play for a role in mesoderm induction. Mechanisms which account, at least in part, for the observed differences between anuran and urodele inductive processes can be derived from these principles.
Malacinski
G M
GM
Department of Biology, Indiana University, Bloomington 47405, USA. malacins@indiana.edu
Bessho
T
T
Yokota
C
C
Fukui
A
A
Asashima
M
M
D000818:Animals; D001001:Anura / Q000196:embryology*; D002454:Cell Differentiation; D004627:Embryonic Induction; D009024:Morphogenesis; D010802:Phylogeny; D015398:Signal Transduction; D014562:Caudata / Q000196:embryology*