Effect of Thiourea on Development of the Sea Urchin Arbacia Punctulata
- 1 March 1946
- journal article
- research article
- Published by Frontiers Media SA in Experimental Biology and Medicine
- Vol. 61 (3), 268-270
- https://doi.org/10.3181/00379727-61-15297
Abstract
Sea urchin eggs which were subjected to varying concentrations of thiourea showed a number of pronounced effects. Concentrations of 1% or more resulted in a complete inhibition of cleavage. In 0.5% solutions of thiourea, the eggs developed normally until the blastula stage was reached. For as long as 72 hours, the eggs did not differentiate beyond the gas-trula stage. When the arrested gastrulae were returned to sea water, the inhibitory effects were reversible.Keywords
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