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PMID: 8729 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.

Intracellular pH and activation of sea urchin eggs after fertilisation.

Nature ·Vol. 262 ·No. 5570 ·1976-08-19 ·Pages 661-4

Johnson JD, Epel D

Abstract

The intracellular pH of the sea urchin embryo increases 0.3 pH units between 1 and 4 min after fertilisation. The increase in pH is required for initiating development. The increase results from an exchange of extracellular Na+ for intracellular H+.

MeSH Terms

Amiloride/pharmacology Ammonia/pharmacology Animals Biological Transport/drug effects Cell Division Cytoplasm/physiology Female Fertilization Hydrogen-Ion Concentration Protons Sea Urchins Sodium Zygote/metabolism,ultrastructure

Chemicals

Protons Ammonia Amiloride Sodium

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Johnson J D

Epel D

Article Info

Journal

Nature

Abbr.

Nature

ISSN

0028-0836

DOI

10.1038/262661a0

Published

1976-08-19

Pages

661-4

Language

English

Region

England

NLM ID

0410462

Subset

External Links

PubMed source DOI: 10.1038/262661a0 View journal details

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