Process virtually unique to angiosperms in which one sperm nucleus combines with the egg to produce a zygote, and the other sperm nucleus combines with the two polar nuclei to produce the first cell of the triploid endosperm.
The fertilization process in angiosperms resulting in fusion of pollen nuclei with both zygote and the polar bodies to form the 2N embryo and the 3N endosperm.
fertilization system unique to flowering plants in which two sperm nuclei enter the egg sac (megagametophyte). One fuses with the egg nucleus to form a zygote and the other fuses with two polar nuclei to form a triploid cell that will develop into the endosperm.
The union of one male gametophyte nucleus with the ovum nucleus and another male gametophyte nucleus with the polar nuclei to form the endosperm in seed plants. See also pollen grain.
A mechanism of fertilization in angiosperms, in which two sperm cells unite with two cells in the embryo sac to form the zygote and endosperm.
Union of one sperm + egg to form a diploid (2) zygote, while the second sperm + fused polar nuclei unite to form triploid (3) endosperm. Common fertilization method of angiosperms.
A characteristic of angiosperms in which a pollen tube carries two sperm cells to the female gametophyte in the ovule. One sperm cell fuses with the egg cell and gives rise to a diploid embryo The other sperm cell fuses with the two polar cells to form a triploid cell that develops into the endosperm. PICTURE 1 PICTURE 2
in flowering plants: the more or less simultaneous union of one sperm and one egg to form a zygote (N=2) and another sperm with two polar nuclei to form triploid (N=3) endosperm in the ovule; in the Gnetales: the fusion of two sperm with two eggs to produce two zygotes, only one of which will mature into an embryo
An exclusive process of angiosperms in which one male nucleus pollinates the egg nucleus to form zygote, which develops into an embryo, while the other male nucleus joins with two other nuclei in the embryo sac to form endosperm, which can be found in corn, Zea mays, and other grasses.
