Biol. Bull. Sign up for etocs!
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Biol Bull 112: 21-27. (February 1957)
© 1957 Marine Biological Laboratory
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by FLICKINGER, R. A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by FLICKINGER, R. A.

EVIDENCE FROM SEA URCHIN-SAND DOLLAR HYBRID EMBRYOS FOR A NUCLEAR CONTROL OF ALKALINE PHOSPHATASE ACTIVITY

REED A. FLICKINGER 1

1 Dept. of Zoology, University of California, Los Angeles, California and Friday Harbor Laboratories, University of Washington, Friday Harbor, Washington

1. Alkaline phosphatase estimations upon sea urchin embryos (S. purpuratus) showed a slow rate of increasing activity up to the pluteus stage while sand dollar embryos (Dendraster excentricus) showed a very rapid increase up to this same stage.

2. Hybridization between Strongylocentrotus purpuratus female and Dendraster excentricus male resulted in alkaline phosphatase activity at the prism stage which was intermediate between that of the two homologous species and higher than that of the maternal species. This is interpreted as indicating a nuclear control of alkaline phosphatase activity.

3. Addition of substrate (0.1 M sodium beta glycerophosphate) to cultures of developing S. purpuratus embryos did not affect an increase in acid or alkaline phosphatase activity.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1957 by the Marine Biological Laboratory.