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. 1986 Nov;28(6):569-574.
doi: 10.1111/j.1440-169X.1986.00569.x.

Development of Serotonergic Neurons in Embryos of the Sea Urchin, Strongylocentrotus purpuratus: (serotonergic/neural development/embryo/echinoid)

Brent W Bisgrove  1 , Robert D Burke  1
Affiliations

Development of Serotonergic Neurons in Embryos of the Sea Urchin, Strongylocentrotus purpuratus: (serotonergic/neural development/embryo/echinoid)

Brent W Bisgrove et al. Dev Growth Differ. 1986 Nov.

Abstract

The development of the serotonergic component of the nervous system of larvae of S. purpuratus is traced using indirect immunofluorescence with a polyclonal antibody against the neurotransmitter serotonin. Initially one or two neuroblasts can be detected in the thickened epithelium of the animal plate of late gastrulae (56 hr). The number of immunoreactive cells increases to about eight during formation of the pluteus (85-90 hr). Immunoreactive axons appear simultaneously from all neuroblasts present in the 79 hr prism stage larva and form the apical ganglion. It is proposed that this component of the larval nervous system is derived from a small number of ectodermal cells associated with the apical tuft.

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References

    1. Stearns, L. W., 1974. “Sea Urchin Development: Cellular and Molecular Aspects.” Dowden, Hutchinson and Ross, Stroudsburg Pennsylvania .
    1. Czihak, G., 1975. “The Sea Urchin Embryo.” Springer Berlin, Heidelberg/New York .
    1. Davidson, E. H., 1968. “Gene Activity in Early Development.” Academic Press, New York/London .
    1. Angerer, R. C. and E. H. Davidson, 1984. Science, 226, 1153-1160.
    1. Strathmann, M., 1968. “Methods in Development Series I. General Procedures and Echinodermata-Echinoidea.” Friday Harbor Laboratories, Friday Harbor .

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