antheridia definition biology plant
Diagram of antheridium anatomy. An antheridium or antherida (plural: antheridia) is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). It is present in the gametophyte phase of cryptogams like bryophytes and ferns, and also in the primitive vascular psilotophytes.n bryophytes, the antheridium is borne on an antheridiophore, a stalk-like structure that carries the antheridium at its apex. In many gymnosperms and all angiosperms, the male gametophytes have been reduced to pollen grains and their antheridia have been reduced to a single generative cell within the pollen grain. Antheridium. Antheridium. The fertile organ of a male gametophyte or the male organ of a bisexual gametophyte, in which male gametes are formed. Please contribute to this project, if you have more information about this term feel free to edit this page.ntheridium. Antheridium. The fertile organ of a male gametophyte or the male organ of a bisexual gametophyte, in which male gametes are formed. Please contribute to this project, if you have more information about this term feel free to edit this page. An antheridium typically consists of sterile cells and spermatogenous tissue. The sterile cells may form a central support structure or surround the spermatogenous tissue as a protective jacket. The spermatogenous cells give rise to spermatids via mitotic cell division.In bryophytes, the antheridium is borne on an antheridiophore, a stalk-like structure that carries the antheridium at its apex.In many gymnosperms and all angiosperms, the male gametophytes have been reduced to pollen grains and their antheridia have been reduced to a single generative cell within the pollen grain.n bryophytes, the antheridium is borne on an antheridiophore, a stalk-like structure that carries the antheridium at its apex. In many gymnosperms and all angiosperms, the male gametophytes have been reduced to pollen grains and their antheridia have been reduced to a single generative cell within the pollen grain. Simply put, an antheridium is a structure that produces and holds sperm cells in bryophytes (non vascular plants) and ferns. This is similar to a human's testes in that the sperm is not only produced in the structure, but is stored there until needed for reproduction.he antheridia (plural) make up the male structure in these mosses and ferns. The female structure is known as the archegonia, and it contains the egg cells of the organism. The antheridia of the organism will begin to open and allow the sperm to flow out. BONUS: An archegonium (pl: archegonia) is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. Lab 6: Non-Vascular Plants; Hepatophyta. Genus Marchantia (liverworts): Archegonium. Egg.enus Marchantia (liverworts): Archegonia. BONUS: An archegonium (pl: archegonia), a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete is produced here. The generalized cycle of the Alternation of Generations: 1  gametophyte-haploid plant that produces gametes via mitosis. 2  gamete-haploid ovum (female) or sperm (male). 3  gametangium-generic term for a multicellular plant sex organ.4  It can be either... 5  archegonium-the female sex organ (analogous to the animal ovary).he generalized cycle of the Alternation of Generations: 1  gametophyte-haploid plant that produces gametes via mitosis. 2  gamete-haploid ovum (female) or sperm (male). 3  gametangium-generic term for a multicellular plant sex organ. 4  It can be either... antheridium. A Dictionary of Plant Sciences | 1998 |. © A Dictionary of Plant Sciences 1998, originally published by Oxford University Press 1998. antheridium The male sex organ or gametangium, within which male gametes are formed, in algae, fungi, bryophytes (mosses, liverworts, etc), and pteridophytes (ferns). A Dictionary of Biology 2004, originally published by Oxford University Press 2004. antheridium (pl. antheridia) The male sex organ of algae, fungi, bryophytes, clubmosses, horsetails, and ferns. It produces the male gametes (antherozoids). BONUS: An archegonium (pl: archegonia) is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. Lab 6: Non-Vascular Plants; Hepatophyta. Genus Marchantia (liverworts): Archegoniophore. Archegonia.enus Marchantia (liverworts): Archegonia. BONUS: An archegonium (pl: archegonia), a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete is produced here. BONUS: An antheridium or antherida (plural: antheridia) is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). Lab 6: Non-Vascular Plants; Hepatophyta. Genus Marchantia (liverworts): Antheridiophore.enus Marchantia (liverworts): Archegonia. BONUS: An archegonium (pl: archegonia), a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete is produced here. BONUS: An antheridium or antherida (plural: antheridia) is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). Lab 6: Non-Vascular Plants; Hepatophyta. Genus Marchantia (liverworts): Antheridium.enus Marchantia (liverworts): Archegonia. BONUS: An archegonium (pl: archegonia), a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete is produced here.
A haploid structure or organ producing and containing male gametes.