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Morphogenetic field information


A. G. Gurwitsch analysed the embryonic development of the sea urchin as a vector-field, as if the proliferation of cells into organs were brought about by putative external forces.

In the developmental biology of the early twentieth century, a morphogenetic field is a group of cells able to respond to discrete, localized biochemical signals leading to the development of specific morphological structures or organs.[1][2] The spatial and temporal extents of the embryonic field are dynamic, and within the field is a collection of interacting cells out of which a particular organ is formed.[3] As a group, the cells within a given morphogenetic field are constrained: thus, cells in a limb field will become a limb tissue, those in a cardiac field will become heart tissue.[4] However, specific cellular programming of individual cells in a field is flexible: an individual cell in a cardiac field can be redirected via cell-to-cell signaling to replace specific damaged or missing cells.[4] Imaginal discs in insect larvae are examples of morphogenetic fields.[5]

  1. ^ Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P (2002). Universal Mechanisms of Animal Development. in: Molecular Biology of the Cell (4th ed.). Garland. ISBN 978-0-8153-3218-3.
  2. ^ Jacobson AG, Sater AK (1 November 1988). "Features of embryonic induction". Development. 104 (3): 341–59. doi:10.1242/dev.104.3.341. PMID 3076860.
  3. ^ Gilbert SF, Opitz JM, Raff RA (1996). "Resynthesizing evolutionary and developmental biology". Dev. Biol. 173 (2): 357–72. doi:10.1006/dbio.1996.0032. PMID 8605997.
  4. ^ a b Gilbert SF (2003). Developmental biology (7th ed.). Sunderland, Mass: Sinauer Associates. pp. 65–6. ISBN 978-0-87893-258-0.
  5. ^ Alberts B, et al. (2002). Organogenesis and the Patterning of Appendages. in: Molecular Biology of the Cell (4th ed.). Garland. ISBN 978-0-8153-3218-3.

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