The "lecithotrophic" sea urchin Heliocidaris erythrogramma lacks typical yolk platelets and yolk glycoproteins.

Published

Journal Article

The sea urchin Heliocidaris tuberculata undergoes typical development, forming an echinoid pluteus larva, whereas H. erythrogramma undergoes direct development via a highly modified, nonfeeding larva. Using a polyclonal antibody prepared against yolk glycoproteins from the typical developer Stronglyocentrotus purpuratus, we found that H. tuberculata contains cross-reactive proteins in abundance, but H. erythrogramma does not. In addition, we used immunoelectron microscopy to demonstrate that unfertilized eggs of H. tuberculata contain yolk platelets, but those of H. erythrogramma do not.

Full Text

Duke Authors

Cited Authors

  • Scott, LB; Lennarz, WJ; Raff, RA; Wray, GA

Published Date

  • March 1, 1990

Published In

Volume / Issue

  • 138 / 1

Start / End Page

  • 188 - 193

PubMed ID

  • 2307284

Pubmed Central ID

  • 2307284

Electronic International Standard Serial Number (EISSN)

  • 1095-564X

International Standard Serial Number (ISSN)

  • 0012-1606

Digital Object Identifier (DOI)

  • 10.1016/0012-1606(90)90188-o

Language

  • eng