Recherches sur les effets des ions de métaux alcalins sur le développement embryonnaire de l'œuf d'oursin
The effects of the alkali ions Li, K, Rb and Cs on the development of the eggs of the sea urchin Paracentrotus lividus and their mutual interactions are studied. K, Rb and Cs (0.052 M) ions inhibit the development. These effects are reversible. They are decreasing in the order Cs > Rb > K. The...
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| Published in | Experimental cell research Vol. 21; no. 3; pp. 556 - 563 |
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| Main Author | |
| Format | Journal Article |
| Language | French |
| Published |
Elsevier Inc
1960
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| Online Access | Get full text |
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| Summary: | The effects of the alkali ions Li, K, Rb and Cs on the development of the eggs of the sea urchin
Paracentrotus lividus and their mutual interactions are studied.
K, Rb and Cs (0.052
M) ions inhibit the development. These effects are reversible. They are decreasing in the order Cs > Rb > K.
The vegetalizing effects of Li are counteracted by K and at a lower degree by Rb. The counteracting action of Cs is very weak.
These results are discussed with regard to properties of these ions.
The alteration of hydratation envelop of proteins by Li ions and the formation of chelates compounds between Li and fibrous proteins may be responsible for the vegetalizing effects of Li ions. |
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| ISSN: | 0014-4827 1090-2422 |
| DOI: | 10.1016/0014-4827(60)90289-5 |