Document Detail

pH and calcium concentration changes in a molluscan egg during development.
MedLine Citation:
PMID:  38136     Owner:  NLM     Status:  MEDLINE    
During development, the egg albumen of calcified land snail eggs becomes more and more acid, correlated directly with a constant rise in the calcium concentration of this albumen. It is suggested that the developing embryo releases some acid metabolite and the subsequent change in albumen pH aids in embryonic absorption of the CaCO3 (calcite) egg shell, used for making the embryonic body shell or skeleton (CaCO3 in the form of aragonite).
A S Tompa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Experientia     Volume:  35     ISSN:  0014-4754     ISO Abbreviation:  Experientia     Publication Date:  1979 Jun 
Date Detail:
Created Date:  1979-10-17     Completed Date:  1979-10-17     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0376547     Medline TA:  Experientia     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  812-3     Citation Subset:  IM    
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MeSH Terms
Calcium / metabolism*
Egg Proteins / physiology
Egg Shell
Hydrogen-Ion Concentration*
Ovum / metabolism*
Snails / physiology*
Time Factors
Reg. No./Substance:
0/Egg Proteins; 7440-70-2/Calcium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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