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ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS

From the low frequency alternating current impedance and the volume concentrations of suspensions of Arbacia eggs, it is shown that the high resistance membrane is either at or very near the plasma membrane for both unfertilized and fertilized eggs, and that the specific resistances of the perivitel...

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Detalles Bibliográficos
Autores principales: Cole, Kenneth S., Spencer, Joseph M.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1938
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2141961/
https://www.ncbi.nlm.nih.gov/pubmed/19873067
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author Cole, Kenneth S.
Spencer, Joseph M.
author_facet Cole, Kenneth S.
Spencer, Joseph M.
author_sort Cole, Kenneth S.
collection PubMed
description From the low frequency alternating current impedance and the volume concentrations of suspensions of Arbacia eggs, it is shown that the high resistance membrane is either at or very near the plasma membrane for both unfertilized and fertilized eggs, and that the specific resistances of the perivitelline space and fertilization membrane are not greatly different from that of sea water. The effect of the capacity element which appears after fertilization at intermediate frequencies is considerably less than in the earlier experiments on Arbacia and Hipponoë eggs. These findings indicate that the fertilization membrane does not have the high capacity previously attributed to it and that the increase in membrane capacity takes place at or near the plasma membrane.
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spelling pubmed-21419612008-04-23 ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS Cole, Kenneth S. Spencer, Joseph M. J Gen Physiol Article From the low frequency alternating current impedance and the volume concentrations of suspensions of Arbacia eggs, it is shown that the high resistance membrane is either at or very near the plasma membrane for both unfertilized and fertilized eggs, and that the specific resistances of the perivitelline space and fertilization membrane are not greatly different from that of sea water. The effect of the capacity element which appears after fertilization at intermediate frequencies is considerably less than in the earlier experiments on Arbacia and Hipponoë eggs. These findings indicate that the fertilization membrane does not have the high capacity previously attributed to it and that the increase in membrane capacity takes place at or near the plasma membrane. The Rockefeller University Press 1938-05-20 /pmc/articles/PMC2141961/ /pubmed/19873067 Text en Copyright © Copyright, 1938, by The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Cole, Kenneth S.
Spencer, Joseph M.
ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS
title ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS
title_full ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS
title_fullStr ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS
title_full_unstemmed ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS
title_short ELECTRIC IMPEDANCE OF FERTILIZED ARBACIA EGG SUSPENSIONS
title_sort electric impedance of fertilized arbacia egg suspensions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2141961/
https://www.ncbi.nlm.nih.gov/pubmed/19873067
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