Related Experiment Videos
[Scale induction in the chick amnionic ectoderm attached to tarsometatarsal skin dermis]
T Mizuno1, M Saito, S Tanemura
1Département de Biologie, Faculté des Sciences pharmaceutiques, Teikyo Université, Kanagawa-ken, Japan.
Comptes Rendus Des Seances De La Societe De Biologie Et De Ses Filiales
|January 1, 1989
Summary
Chick embryo skin development shows that early tarsometatarsal dermis induces scales, while later shank dermis can induce both scales and feather filaments in amnionic ectoderm.
Area of Science:
- Developmental biology
- Skin appendage formation
- Ectoderm-dermis interactions
Context:
- Investigating the inductive capacity of embryonic avian dermis on amnionic ectoderm.
- Examining the role of dermal tissue age and origin in specifying skin appendages.
Purpose:
- To determine how different embryonic dermal tissues influence the differentiation of amnionic ectoderm.
- To identify the specific skin appendages (scales or feathers) induced by varying dermal substrates.
Summary:
- 6.8-day chick embryo tarsometatarsal dermis induced scale formation and specific keratin expression in 6.8-day amnionic ectoderm.
- 10.5-day chick embryo shank dermis induced both feather filaments and scales in the same amnionic ectoderm, demonstrating age- and location-dependent inductive potential.
Impact:
- Provides insights into the molecular mechanisms of skin appendage patterning in birds.
- Highlights the plasticity of ectoderm and the crucial role of dermal cues in development.
- Informs future research on evolutionary developmental biology of skin structures.