File:Ovules_in_flower.png · Wikimedia Commons · See Wikimedia Commons
ovule
Sign in to savethumb|Location of ovules inside a Helleborus foetidus flower
An ovule is the structure inside a flower that contains the female reproductive cells and eventually develops into a seed after fertilization. Ovules are essential to plant reproduction because they're what transform into seeds, which allow plants to spread and create new generations.
AI-generated from the Wikipedia summary — may contain errors.
Research
64,079 papers- Ovule initiation: the essential step controlling offspring number in Arabidopsis.Journal of integrative plant biology · 2022
- Evolution and patterning of the ovule in seed plants.Biological reviews of the Cambridge Philosophical Society · 2021
- Molecular Network for Regulation of Ovule Number in Plants.International journal of molecular sciences · 2021
- Gynoecium size and ovule number are interconnected traits that impact seed yield.Journal of experimental botany · 2020
- Ovule development: genetic trends and evolutionary considerations.Sexual plant reproduction · 2009
via PubMed
Wikidata facts
- Image
- Zalążki.jpg
Show 1 more fact
- Commons category
- Ovules
via Wikidata · CC0
~12 min read
Article
11 sectionsContents
- Location within the plant
- Parts and development
- Integuments, micropyle, chalaza and hilum
- Nucellus, megaspore and perisperm
- Megagametophyte
- Zygote, embryo and endosperm
- Types of gametophytes
- See also
- References
- Bibliography
- External links
thumb|Location of ovules inside a Helleborus foetidus flower
In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the integument, forming its outer layer, the nucellus (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center. The female gametophyte — specifically termed a megagametophyte — is also called the embryo sac in angiosperms. The megagametophyte produces an egg cell for the purpose of fertilization. The ovule is a small structure present in the ovary. It is attached to the placenta by a stalk called a funicle. The funicle provides nourishment to the ovule. On the basis of the relative position of micropyle, body of the ovule, chalaza and funicle, there are six types of ovules.