scholarly journals Effect of low pH treatment and agents causing mitotic delay on intracellular pH of sea urchin eggs.

1981 ◽  
Vol 22 (1) ◽  
pp. 160-164
Author(s):  
H. KIMURA ◽  
T. SHIROYA ◽  
T. AOYAMA ◽  
A. SHIMA
Keyword(s):  
Intracellular Ph ◽  
Sea Urchin ◽  
Low Ph ◽  
Sea Urchin Eggs ◽  
Mitotic Delay

Intracellular pH and activation of sea urchin eggs after fertilisation

Nature ◽  
1976 ◽  
Vol 262 (5570) ◽  
pp. 661-664 ◽  
Author(s):  
James D. Johnson ◽  
David Epel ◽  
Miles Paul
Keyword(s):  
Intracellular Ph ◽  
Sea Urchin ◽  
Sea Urchin Eggs

scholarly journals Regulation of Intracellular pH in Sea Urchin Eggs by Medium Containing Both Weak Acid and Base.

1997 ◽  
Vol 22 (4) ◽  
pp. 387-398 ◽  
Author(s):  
Miyako S. Hamaguchi ◽  
Kenji Watanabe ◽  
Yukihisa Hamaguchi
Keyword(s):  
Intracellular Ph ◽  
Sea Urchin ◽  
Weak Acid ◽  
Sea Urchin Eggs ◽  
Acid And Base

Effect of caulerpenyne, a toxin extracted fromCaulerpa taxifolia on mechanisms regulating intracellular pH in sea urchin eggs and sea bream hepatocytes

1996 ◽  
Vol 11 (5) ◽  
pp. 243-250 ◽  
Author(s):  
Isabelle Galgani ◽  
Danielle Pesando ◽  
Jacqueline Porthe-Nibelle ◽  
Barthélémy Fossat ◽  
Jean-Pierre Girard
Keyword(s):  
Intracellular Ph ◽  
Sea Urchin ◽  
Sea Bream ◽  
Sea Urchin Eggs

Mechanisms regulating intracellular pH in sea urchin eggs

1983 ◽  
Vol 100 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Patrick Payan ◽  
Jean-Pierre Girard ◽  
Brigitte Ciapa
Keyword(s):  
Intracellular Ph ◽  
Sea Urchin ◽  
Sea Urchin Eggs

Analysis of DNA Synthesis and X-Ray-Induced Mitotic Delay in Sea Urchin Eggs

1965 ◽  
Vol 26 (4) ◽  
pp. 534 ◽  
Author(s):  
Bhashini Rao ◽  
R. T. Hinegardner
Keyword(s):  
Dna Synthesis ◽  
Sea Urchin ◽  
X Ray ◽  
Sea Urchin Eggs ◽  
Mitotic Delay

scholarly journals Intracellular pH of sea urchin eggs measured by the dimethyloxazolidinedione (DMO) method.

1981 ◽  
Vol 89 (2) ◽  
pp. 284-291 ◽  
Author(s):  
C H Johnson ◽  
D Epel
Keyword(s):  
Intracellular Ph ◽  
Sea Urchin ◽  
General Result ◽  
Strongylocentrotus Purpuratus ◽  
Lytechinus Pictus ◽  
Sea Urchin Eggs ◽  
Cell Divisions ◽  
Ph Microelectrodes

Intracellular pH (pH1) of sea urchin eggs and embryos was determined using DMO (5,5-dimethyl-2,4-oxazolidinedione). By this method, the pH1 of Lytechinus pictus eggs increased after fertilization from 6.86 to 7.27, and this higher pHi was maintained thereafter, as has been previously observed with pH microelectrodes. The same general result was obtained with the eggs of Strongylocentrotus purpuratus, in contrast to previous estimates of the pH of egg homogenates from this species, which had indicated a rise and then fall of pHi after fertilization. pHi did not significantly change during early cell divisions. Studies of treatments that alter pHi confirmed that ammonia alkalizes and acetate acidifies the cells. The regulation of pHi by embryos in the acidic seawater is impaired if sodium is absent, whereas unfertilized eggs can regulate pHi in acidic, sodium-free seawater.

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