Untersuchung der ersten Entwicklungsphasen von Embryo und Endosperm der Art Jasione montana L. an lebendem Material.

Autor: Erdelská, Oľga
Zdroj: Planta: An International Journal of Plant Biology; 1968, Vol. 84 Issue 1, p43-47, 5p
Abstrakt: Growth of the zygote and the first phases of the endosperm development of Jasione montana L. in isolated intact ovules was studied. The zygote begins to grow simultaneously with the first division of the primary endosperm nucleus. It forms a long outgrowth into the embryo sac. A distinct oil droplet occurs in the basic part of the zygote, which disappears after the development of the embryo is advanced. The nucleus of the zygote shifts to the top of the outgrowth of the zygote before the prolongated growth of the zygote is completed. The first mitosis in the embryo takes plase in this position at the time when there are 8-16 cells in the endosperm. The endosperm division as it can be seen in the living material is described. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz: