gametophyte
plant producing gametes, that is sex cells; contrast to sporophyte
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Gametophyte
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gametophyte -- The haploid stage in the life cycle of an organism undergoing alternations of generations. The gametophyte is multicellular and mitotically produces gametes. In plants, the gametophyte nourishes the zygote and young sporophyte.
gametophyte The haploid stage of a plant exhibiting alternation of generations, generates gametes by the process of mitosis.
ganglia Clusters of neurons that receive and process signals; found in þatworms and earthworms. PICTURE ...
Gametophyte: Haploid stage in the life cycle of a plant.
Generation time: The time period from birth to average age of reproduction.
gametophyte
The part of the life cycle of plants having haploid nuclei and giving rise to the sex cells that on fusing produce a diploid stage, usually the sporophyte.
Gametophyte in plants and algae‚ the 1n generation which produces gametes (eggs and sperm)
(gamet = marriage‚ reproduction; phyto = plant) ...
The Gametophyte Generation
The leafy shoot of mosses is haploid and thus part of the gametophyte generation.
(Link to a general discussion of the alternation
of generations in all plants.) ...
microgametophyte Stage of the plant life cycle that develops from or within a microspore. The microgametophyte produces sperm in specialized structures known as antheridia.
gametophyte The haploid, gamete-producing plant in the alternation of generations; undergoes mitosis to produce the haploid gametes, which fuse to form the diploid zygote of the sporophyte.
The female gametophyte of angiosperms, formed from the growth and division of the megaspore into a multicellular structure with eight haploid nuclei.
enantiomer ...
In higher plants, the diploid generation, the members of which are known as sporophytes due to their ability to produce spores, is usually dominant and more recognizable than the haploid gametophyte generation.
Double fertilization: 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.
They are actually a phase of the moss life cycle that feeds off the green parent plant (the gametophyte). The sporophyte is a stalk that grows after the haploid sperm of one moss plant is able to mix with the haploid egg of a female moss plant.
Derived terms: gametic (adjective), gametocyte (noun), gametophyte (noun), gametophobia (noun).
Synonym: sex cell, reproductive cell.
See also: gametogenesis, meiosis, syngamy.
The spores germinated normally and grew into diploid gametophytes. These did not appear to produce antheridia. Nonetheless, a subsequent generation of tetraploid sporophytes was produced.
 See also: Plant, Cells, Organ, Animal, Cell
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