gametophyte

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gametophyte

[gəmē′tōfīt]
Etymology: Gk, gamete + phyton, plant
a cell in the reproductive stage when the nuclei are in a haploid condition.

gametophyte

(găm′ĕ-tō-fīt) [″ + phyton, plant]
In plants, the sexual (gamete-producing) generation that alternates with the asexual (spore-producing) generation.

gametophyte

that part of the life cycle of plants which has HAPLOID nuclei and gives rise to the sex cells which on fusing produce a DIPLOID stage, usually the SPOROPHYTE. See ALTERNATION OF GENERATIONS.
References in periodicals archive ?
Effects of sucrose and irradiance on germination and early gametophyte growth of the endangered tree fern Dicksonia sellowiana Hook.
sellowiana, but details for the male gametophyte developmental process are lacking.
Around 36 days after sowing, reproductive activity was observed with the presence of female gametangia in about 60% of adult cordate gametophytes (Fig.
The male gametophyte equals the mature pollen grain that arises in the anther and consists of only three cells (i.
1988) Several gametophytes and young sporophytes were also found growing on the external surface of the mat of roots of the largest sporophyte individual (Fig.
Water relations are discussed in some detail with a focus on desiccation tolerance (very low cellular water content) of the gametophytes.
Specific cells produced by the haploid gametophytes are gametes, which may fuse with other gametes to form a diploid zygote.
Comparative research of gametophytes of Olfersia alata and Olfersia cervina (Dryopteridaceae).
For example, an upregulation of phenylalanine-ammonia lyase, a key enzyme of the biosynthesis of aromatic compounds, was reported for Chondrus crispus gametophytes after incubation with cell-free extracts of the endophytic pathogen Acrochaete operculata.