spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

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
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by MITCHISON, J. M.
Right arrow Search for Related Content
PubMed
Right arrow Articles by MITCHISON, J. M.
Journal of Experimental Biology 33,524-532 (1956)
Published by Company of Biologists 1956

The Mechanical Properties of the Cell Surface : IV. The Effect of Chemical Agents and of Changes in pH on the Unfertilized Sea-Urchin Egg

J. M. MITCHISON 1

1 Department of Zoology, University of Edinburgh, and Stazione Zoologica, Naples

Measurements were made with the cell elastimeter on the effect of a number of reagents and of changes in pH on the rigidity of the cell membrane of unfertilized sea-urchin eggs. The membrane rigidity was increased by dithiopropanol, thioglycollate, chloracetophenone, a polyethanoxide and zinc ions. It was lowered by trypsin, cetyltrimethyl ammonium bromide and sodium dodecyl sulphate. Most of the other reagents, including respiratory inhibitors and calcium ions, had no effect. The membrane has a minimum rigidity at a pH of about 5.7.

Submitted on March 7, 1956






© The Company of Biologists Ltd 1956