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Original Articles

Peculiar features of ontogenesis of the ovule in Heliophila (Cruciferae Juss.) before and after fertilization

Pages 279-283 | Published online: 08 Feb 2017
 

Summary

The development of the inner integument after fertilization is the result of growth of cells and of the formation of a great number of nuclei. While the embryo is being formed, these large multicellular cells are destroyed and two outer small-cell layers of the inner integument remain. The specific features of embryological development support the idea of individuation of the Heliophilae tribe in the family system of Yanciien.

Résumé

Après la fécondation, le développement du tégument interne résulte de l'hypertrophie des cellules au sein desquelles les noyaux se multiplient cénocytiquement. Ces cellules sont détruites au cours du développement embryonnaire, mais les deux autres strates du tégument interne persistent. Les caractéristiques embryogéniques confirment l'identification de la tribu des Heliophilae dans la taxonomie de Yanchen.

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