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archegonium::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | plant organ |
| Derivation | archegonial |
Examples of archegonium
archegonium
Since the archegonium is a haploid structure, egg cells are produced via mitosis.
From the en.wikipedia.org
In land plants, the zygote is formed within a chamber called the archegonium.
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The horn-shaped sporophyte grows from an archegonium embedded deep in the gametophyte.
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Since the sperm must swim to the archegonium, fertilisation cannot occur without water.
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As the zygote divides and grows, it does so inside the archegonium.
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The typical bryophyte archegonium consists of a long neck with a wider base containing the egg cell.
From the en.wikipedia.org
Upon maturation, the neck opens to allow sperm cells to swim into the archegonium and fertilize the egg.
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An archegonium develops within the ovule and produces an egg.
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In seedless plants, the archegonium is usually flask-shaped, with a long hollow neck through which the sperm cell enters.
From the en.wikipedia.org
- A female sex organ occurring in mosses, ferns, and most gymnosperms
- An archegonium (pl: archegonia), from the ancient Greek u1F00u03C1u03C7u03AE ("beginning") and u03B3u03CCu03BDu03BFu03C2 ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium. The archegonium has a long neck canal or venter and a swollen base...
- A multicellular reproductive structure that contains a large, non-motile gamete (egg cell), and within which an embryo will develop
- In plants it is the gametophyte tissue that produces and houses the egg, and for a time supports the embryo
- The female sexual organ in Cryptogams, containing the oosphere,. which after fertilisation develops into the sporophyte.
- In plants, the female gametangium, a moist chamber in which gametes develop.
- The female equivalent of the Antheridium.
- The female, egg-producing reproductive structure on the gametophytes of non-flowering land plants. The archegonium is comprised of an oogonium surrounded by protective layers of thick-walled, pigmented cells, and may be differentiated into an elongated neck reagion and an expanded basal region, ...
