Weitere Beispiele werden automatisch zu den Stichwörtern zugeordnet - wir garantieren ihre Korrektheit nicht.
However, flowering plants have in addition a phenomenon called 'double fertilization'.
This cell created in the process of double fertilization develops into the endosperm.
He had discovered double fertilization in plants in 1898.
The double fertilization initially used to produce two identical, independent embryos ("twins").
After double fertilization, these ovules will become seeds.
Some gymnosperms, such as Ephedra, do may produce twin embryos by double fertilization.
For further information, see Double fertilization.
Due to the limitations of the light microscope, there were many unanswered questions regarding the process of double fertilization.
Double fertilization is a complex fertilization mechanism of flowering plants (angiosperms).
The male gametophytes, or microgametophytes, that participate in double fertilization are contained within pollen grains.
Double fertilization proceeds from here.
In angiosperms, the stored food begins as a tissue called the endosperm, which is derived from the parent plant via double fertilization.
The evolutionary origins of double fertilization and endosperm are unclear, attracting researcher attention for over a century of research.
Pollen germination, pollen tube entry, and double fertilization processes have all been observed to proceed normally.
The female gametophyte, the megagametophyte, that participates in double fertilization in angiosperms is sometimes called the embryo sac.
Lilium martagon and Fritillaria tenella were used in the first observations of double fertilization, which were made using the classical light microscope.
In vitro double fertilization is often used to study the molecular interactions as well as other aspects of gamete fusion in flowering plants.
One nucleus fuses with the polar bodies to produce the endosperm tissues, and the other with the ovum to produce the embryo Hence the term: "double fertilization".
Double fertilization was discovered more than a century ago by Sergius Nawaschin in St. Petersburg, Russia, and Léon Guignard in France.