Development of the larval nervous system of the sand dollar, Dendraster excentricus

56Citations
Citations of this article
12Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Transformation of the gastrula to the pluteus includes development of the ability of the larva to control the direction of ciliary beat and coordinate activities of the ciliary band with activities of the esophageal muscles (48-60 h, 15°C). Glyoxylic acid-induced fluorescence shows several cells of the animal plate to contain catecholamines in the 36-h gastrula. As the ectoderm thickens to form the ciliary band (36-48 h), the catecholamine-containing cells increase in number and occur dispersed throughout the band. Tissues with the ultrastructural characteristics of nerves first become apparent associated with the ciliary band in 60-h larvae. The coincident development of coordinated behaviour and the appearance of cells with ultrastructural and histochemical characteristics of nerves suggests that the larval nervous system is derived at least in part from cells of the animal plate and develops in association with the ciliary bands. © 1983 Springer-Verlag.

Cite

CITATION STYLE

APA

Burke, R. D. (1983). Development of the larval nervous system of the sand dollar, Dendraster excentricus. Cell and Tissue Research, 229(1), 145–154. https://doi.org/10.1007/BF00217887

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free