gametophyte
IPA: gʌmˈitʌfaɪt
noun
- (botany) A plant (or the haploid phase in its life cycle) which produces gametes by mitosis in order to produce a zygote.
Examples of "gametophyte" in Sentences
- The plant body is a gametophyte.
- The gametophytes are microscopic.
- The gametophytes are subterranean.
- Gametophyte dispersal and establishment.
- These meiospores develop into a gametophyte.
- The pollen grains are the male gametophytes.
- The spores germinate into the gametophyte phase.
- Gametogenesis is a step of gametophyte development.
- The haploid gametophyte produces haploid gametes in multicellular gametangia.
- Ulva produces isomorphic thalli for its diploid sporophyte and haploid gametophyte.
- When artificially divided small fragments of the gametophyte are found to be capable of growing into new individuals.
- The sexual form, called the gametophyte or prothallia, is a tiny kidney-shaped plant and difficult to find in the wild.
- The organization of the gametophyte stands in the closest relation to the factors of light and moisture in the environment.
- The last-mentioned case has been regarded as representing an apogamous development of the sporophyte from the gametophyte comparable to the cases of apogamy described in Ferns.
- Sometimes she could remember, sometimes there were flashes of brilliance, but sometimes she was lucky to remember the difference between the gametophyte and sporophyte stages of a fern.
- Anthocerotales are a small and very distinct group, in which the gametophyte is a thallus, while the sporogonium possesses a sterile columella and is capable of long-continued growth and spore production.
- The gametophyte or prothallial generation is thus extremely reduced, consisting of but little more than the male and female sexual cells -- the two sperm-cells in the pollen-tube and the egg-cell (with the synergidae) in the embryo-sac.