Summary
Planula larvae of the marine hydroids Halocordyle disticha and Hydractinia echinata were treated with the catecholamines epinephrine, norepinephrine and dopamine, as well as with certain of their precursors and agonists. Norepinephrine, l-dopa, dopamine and the dopamine agonist ADTN at concentrations ranging from 0.1 to 0.001 mM induced metamorphosis within 24 h in Halocordyle disticha, with no observable morphogenetic abnormalities. Epinephrine, the adrenergic agonists phenylephrine, isoproterenol and methoxyamine, and the catecholamine precursors phenylalanine and tyrosine were found not to induce metamorphosis at the concentrations employed. None of the compounds was effective in inducing metamorphosis in Hydractinia echinata. A model is presented for neural control of metamorphosis in Halocordyle disticha
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References
Archer W, Thomas MB (1984) An SEM study of morphological changes during metamorphosis in Pennaria tiarella. Proc Southeast Electron Microsc Soc 7:21
Ballard WW (1942) The mechanism for synchronous spawning in Hydractinia and Pennaria. Biol Bull 82:329–339
Burke RD (1983) The induction of metamorphosis of marine invertebrate larvae: stimulus and response. Can J Zool 61:1701–1719
Calder DR, Hester BS (1978) Free-living invertebrates. B. Phylum Cnidaria. In: Zingmark RG (ed) An annotated checklist of the biota of the coastal zone of South Carolina. University of South Carolina Press, Columbia, p 88
Cowden RR (1965) Cytochemical studies of embryonic development to metamorphosis in the gymnoblastic hydroid Pennaria tiarella. Acta Embryol Morphol Exp 8:221–231
Edwards NC (1973) The developmental localization of macromolecular groups in selected stages of Hydractinia echinata. Acta Embryol Exp 1973:47–60
Freeman G (1981) The role of polarity in the development of the hydrozoan planula larva. Roux's Arch Dev Biol 190:168–184
Hofmann DK, Newman R, Henne K (1978) Strobilation and initiation of scyphistoma morphogenesis in the rhizostome Cassiopea andromeda (Cnidaria, Scyphozoa). Mar Biol 47:161–176
Martin VJ (1986) Development of nerve cells in hydrozoan planulae of Pennaria tiarella. Am Zool 26 (Abstr):15
Martin VJ, Thomas MB (1980) Nerve elements in the planula of the hydrozoan Pennaria tiarella. J Morphol 166:27–36
Martin VJ, Thomas MB (1981) Elimination of the interstitial cells in the planula larva of the marine hydrozoan Pennaria tiarella. J Exp Zool 217:313–323
Müller WA (1969) Auslösung der Metamorphose durch Bakterien bei den Larven von Hydractinia echinata. Zool Jahrb Abt Anat Ontog 86:84–95
Müller WA (1973) Induction of metamorphosis by bacteria and ions in the planulae of Hydractinia echinata; an approach to the mode of action. Publ Seto Mar Biol Lab 20:195–208
Müller WA (1985) Tumor-promoting phorbol esters induce metamorphosis and multiple head formation in the hydroid Hydractinia. Differentiation 29:216–222
Müller WA, Mitze A, Wickhorst J-P, Meier-Menge HM (1977) Polar morphogenesis in early hydroid development: action of caesium, of neurotransmitters and of an intrinsic head activator on pattern formation. Wilhelm Roux's Arch 182:311–328
Neumann R (1979) Bacterial induction of settlement and metamorphosis in the planula larvae of Cassiopea andromeda (Cnidaria, Scyphozoa, Rhizostomeae). Mar Ecol Prog Ser 1:21–28
Sokal RR, Rohlf FJ (1981) Biometry. Freeman, San Francisco
Spindler K-D, Müller WA (1972) Induction of metamorphosis by bacteria and by a lithium pulse in the larvae of Hydractinia echinata (Hydrozoa). Wilhelm Roux's Arch Dev Biol 169:271–280
Thomas MB, Freeman G, Martin VJ (1987) The embryonic origin of neurosensory cells and the role of nerve cells in metamorphosis in Phialidium gregarium (Cnidaria, Hydrozoa). Int J Invert Reprod Dev (in press)
Wittmann W (1977) Auslösung der Metamorphose bei Hydractinia durch Bacterien: Isolierung und Charakterisierung der Bacterien und der auslösenden Substanz. Thesis, University of Brunswick
Wolk M, Menachem R, Fitt WK, Hofmann DK (1985) Cholera toxin and thyrotroponine can replace natural inducers required for the metamorphosis of larvae and buds of the scyphozoan Cassiopea andromeda. Wilhelm Roux's Arch 194:487–490
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Edwards, N.C., Thomas, M.B., Long, B.A. et al. Catecholamines induce metamorphosis in the hydrozoan Halocordyle disticha but not in Hydractinia echinata . Roux's Arch Dev Biol 196, 381–384 (1987). https://doi.org/10.1007/BF00375776
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DOI: https://doi.org/10.1007/BF00375776