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Cordylophora Morphogenesis: Precocious Sporosac Development in Non-Sessile Colonies

Published online by Cambridge University Press:  11 May 2009

Georgia E. Lesh
Affiliation:
Department of Biology, Case Western Reserve, University, Cleveland, Ohio 44106

Extract

Precocious development of sexual reproductive structures (sporosacs) in Cordylophora (Pallas, Allman) occurs when colonies are grown in the absence of a suitable substratum. Neither varying the nature of the substratum provided nor diverse surgical manipulations will induce this morphogenetic modification. Sessile colonies will also initiate sporosac development if ubstrate availability is limited experimentally.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1972

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References

REFERENCES

Berrill, N. J. 1961. Growth, Development, and Pattern. 555 pp. San Francisco: W. H. Freeman and Co.Google Scholar
Braverman, M. H. 1962. Studies on hydroid differentiation. I. Podocoryne carnea culture methods and carbon dioxide induced sexuality. Exp. Cell Res., Vol. 26, pp. 301–6.CrossRefGoogle Scholar
Braverman, M. H. 1963. Studies on hydroid differentiation. II. Colony growth and initiation of sexuality. J. exp. Embryol. Morph., Vol. 11, pp. 234–53.Google Scholar
Burnett, A. L. & Diehl, N. 1964. The nervous system of Hydra. III. The initiation of sexuality with special reference to the nervous system. J. exp. Zool., Vol. 157, pp. 237–50.CrossRefGoogle Scholar
Burnett, A. L.Sindelar, W. & Diehl, N. 1967. An examination of polymorphism in the hydroid Hydractinia echinata.J. mar. Biol. Ass. U.K., Vol. 47, pp. 645–58.CrossRefGoogle Scholar
Crowell, S. 1961. Developmental problems in Campanularia. In The Biology of Hydra (ed. H. Lenhoff and W. Loomis), pp. 297316. Coral Gables: University of Miami Press.Google Scholar
Diehl, F. 1969. Cellular differentiation and morphogenesis in Cordylophora. Arch. Entwick-Mech. Org., Bd 162, pp. 309–35.CrossRefGoogle ScholarPubMed
Fulton, C. 1960. Culture of a colonial hydroid under controlled conditions. Science, N.Y., Vol. 132, pp. 473–4.Google Scholar
Fulton, C. 1961. The development of Cordylophora. In The Biology of Hydra (ed. H. Lenhoff and W. Loomis), pp. 287–96. Coral Gables: University of Miami Press.Google Scholar
Fulton, C. 1962. Environmental factors influencing the growth of Cordylophora. J. exp. Zool., Vol. 151, pp. 6178.CrossRefGoogle Scholar
Fulton, C. 1963. The development of a hydroid colony. Develop. Biol., Vol. 6, pp. 333–69.Google Scholar
Goldizen, V. C. 1967. An investigation of polymorphism in Podocoryne cornea. Dissertation submitted to Case Western Reserve University, Cleveland, Ohio.Google Scholar
Hargitt, C. W. 1897. Notes upon Cordylophora lacustris. Zoöl. Bull., Vol. 1, pp. 205–8.CrossRefGoogle Scholar
Hauenschild, C. & Kanellis, A. 1953. Experimentelle Untersuchung en an Kulturen von Hydractinia echinata Flemm. zur Frage der Sexualität and Stockendifferenzierung. Zool. Jahrb., Bd. 64, pp. 113.Google Scholar
Hyman, L. H. 1940. The Invertebrates: Protozoa through Ctenophora. 726 pp. New York: McGraw-Hill Book Co.Google Scholar
Kinne, O. 1957. Über den Einfluss von Temperatur und Salzgehalt auf die Köpfchenform des Brackwasserpolypen Cordylophora. Verh. dtsch. Zool., pp. 445–9.Google Scholar
Loomis, W. F. 1957. Sexual differentiation in Hydra: Control by carbon dioxide tension. Science, N.Y., Vol. 126, pp. 735–9.CrossRefGoogle ScholarPubMed
Loomis, W. F. 1959. Control of sexual differentiation in Hydra by pCO2. Ann. N. Y. Acad. Sci., Vol. 77, pp. 7386.Google Scholar
Loomis, W. F. & Lenhoff, H. 1956. Growth and sexual differentiation of Hydra in mass culture. J. exp. Zool., Vol. 132, pp 555–74CrossRefGoogle Scholar
Schulze, F. E. 1871. Über den Bau und die Entwicklung von Cordylophora lacustris (Allman). 52 pp. Leipzig.Google Scholar
Wyttenbach, C. R. 1968. The dynamics of stolon elongation in the hydroid Campanularia flexuosa. J. exp. Zool., Vol. 167, pp. 333–52.Google Scholar
Zwilling, E. 1939. The effect of removal of perisarc on regeneration in Tubularia crocea. Biol. Bull. mar. biol. Lab., Woods Hole, Vol. 76, pp. 90103.CrossRefGoogle Scholar