THE HYPOSTOME AS AN ORGANIZER MORPHALLAXIS REGENERATION
17.2.2. The hypostome as an "organizer"
Hypostome of the hydra act as an "organizer" Because hypostome cause induction of formation of secondary axis if transplanted in the host, hypostome cause the production of both head activation along with head inhibition signals, the hypostome act as "self-differentiating" region, the head inhibition signal cause the inhibition of the formation of new organizing centers.
Three genes are important for hypostome function in hydra. First Wnt, crucial for the hypostome region during the bud elongation and Wnt present at apical region and inhibit GSK3 as a result stabilization of β catenin in the cell nucleus takes place.
- CLEAVAGE AND AXIS FORMATION IN C. ELEGANS
- ANTERIOR POSTERIOR AXIS DIFFERENTIATION IN DROSOPHILA
- SEA URCHIN GASTRULATION
- XENOPUS GASTRULATION
- MATING SWITCH
- MORPHOGENESIS AND ORGANOGENESIS IN AMINALS
- CELL AGGREGATION AND DIFFERENTIATION IN DICTYOSTELIUM
- LIMB DEVELOPMENT AND REGENERATION
- DEVELOPMENT OF NEURONS
- LARVAE FORMATION
- SEX DETERMINATION
- EYE LENS INDUCTION
- THE ABC MODEL OF FLOWER DEVELOPMENT