Advertisement

Comparative Fine Structure of the Actinotrichia (Elastoidin) in Developing Teleost and Dipnoi Fish Fins

  • Jacqueline Géraudie
Part of the NATO ASI Series book series (NSSA, volume 93)

Abstract

Actinotrichia are part of the fin dermoskeleton. Among Osteichthyes these thin slender tapered rods occupy the free margin of all the developing and adult fins only in Actinopterygii, while in the Sarcopterygii, actinotrichia are only present in the developing fin (Géraudie and Meunier, 1984; Géraudie, 1984). Actinotrichia appear also in the temporary ventral finfold of the teleost embryo, for examples as in the trout embryo (Géraudie, in preparation), and then they dissapear when this structure vanishes during later development. On the contrary, in Chondrichthyes, their supposed homologous elements, the ceratotrichia extend largely on both dorsal and ventral sides of the paired and median fins (Kemp, 1977). So far, on the basis of morphology and fine structure, actinotrichia are considered to be homologues of ceratotrichia found in Chondrichthyes, where elastoidin has been biochemically and biophysically analyzed (Woodhead-Galloway and coll., 1977, 1978; Chandross, 1982; and in the present book).

Keywords

Nitrogen Mustard Ectodermal Apical Ridge Present Book Trout Embryo Dermal Skeleton 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bouvet, J., 1974, Différenciation et ultrastructure du squelette distal de la nageoire pectorale chez la Truite indigène (Salmo trutta fario L.). I. Différentiation et ultrastructure des actinotriches, Arch. Anat. Micr., 63:79.Google Scholar
  2. Chandross, R. J., 1982, Structure and packing of dry elastoidin: a collagen phase change, Coll. Rel. Res., 2:331.Google Scholar
  3. Géraudie, J., 1977, Initiation of the actinotrichial development in the early fin bud of the fish, Salmo, J. Morphol., 151:353.CrossRefGoogle Scholar
  4. Géraudie, J., 1981, Consequences of cell death after nitrogen mustard treatment on skeletal pelvic fin morphogenesis in the trout Salmo gairdneri (Pisces, Teleostei), J. Morphol., 170:181.CrossRefGoogle Scholar
  5. Géraudie, J., 1984, Fine structural comparative peculiarities of the developing Dipnoan dermal skeleton in the fins of Neoceratodus larvae. Anat. Rec., 209:115.CrossRefGoogle Scholar
  6. Géraudie, J., and Landis, W. J., 1982, The fine structure of the developing pelvic fin dermal skeleton in the trout Salmo gairdneri, Amer. J. Anat., 163:141.CrossRefGoogle Scholar
  7. Géraudie, J., and Meunier, F. J., 1980, Elastoidin actinotrichia in Coelacanth fins: a comparative study with teleosts, Tissue and Cell, 12:637.CrossRefGoogle Scholar
  8. Kemp, N. E., and Park, J. H., 1970, Regeneration of lepidotrichia and actinotrichia in the tailfin of the teleost Tilapia mossambica, Develop. Biol., 22:321.CrossRefGoogle Scholar
  9. Kemp, N. E., 1977, Banding pattern and fibrillogenesis of ceratotrichia in shark fins, J. Morphol., 154:187.CrossRefGoogle Scholar
  10. Romer, A. S., 1968, The procession of life. The Weidenfeld and Nicholson History, 323.Google Scholar
  11. Woodhead-Galloway, J., and Knight, D. P., 1977, Some observations on the fine structure of elastoidin, Proc. Roy. Soc. London, B 195:355.ADSCrossRefGoogle Scholar
  12. Woodhead-Galloway, J., Hukins, J. L., Knight, D. P., Machin, P. A., and Weiss, J. B., 1978, Molecular packing in elastoidin spicules, J. Mol. Biol., 118:567.CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • Jacqueline Géraudie
    • 1
  1. 1.ER “Formations Squelettiques”, Jeune Equipe CNRS Laboratoire d’Anatomie ComparéeUniversité Paris VIIParis Cedex 05France

Personalised recommendations