gametophyte

Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

ga·me·to·phyte

(gə-mē′tə-fīt′)

n. Botany

The haploid gamete-producing phase in a plant characterized by alternation of generations.

ga·me′to·phyt′ic (-fĭt′ĭk) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

gametophyte

(ɡəˈmiːtəʊˌfaɪt)

(Botany) the plant body, in species showing alternation of generations, that produces the gametes. Compare sporophyte

gametophytic adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ga•me•to•phyte

(gəˈmi təˌfaɪt, ˈgæm ɪ-)

n.

the sexual form of a plant in the alternation of generations. Compare sporophyte.

[1890–95]

ga·me·to·phyte

(gə-mē′tə-fīt′)

In plants, fungi, and certain algae, the individual organism or generation of organisms that produces reproductive cells (called gametes). Each cell of a gametophyte has only one set of chromosomes, just as its gametes do. In nonvascular plants, such as the mosses and liverworts, the gametophyte is the main plant form. In vascular plants, such as the ferns, grasses, conifers, and flowering plants, the gametophyte consists of only a few cells—the embryo sac and the pollen grain. Compare sporophyte.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Switch to new thesaurus

Noun

gametophyte - the gamete-bearing individual or phase in the life cycle of a plant having alternation of generations

plant life, flora, plant - (botany) a living organism lacking the power of locomotion

megagametophyte - the female gametophyte produced by the megaspore of a plant that produces both microspore and megaspores

microgametophyte - the male gametophyte produced by a microspore

References in periodicals archive ?

Cytological observations revealed that the female gametophyte development in the ovule is such that the plant has the potential of reproducing as a facultative apomict with the level of sexuality depending on environmental conditions under which the plant is grown.

Registration of 'Frio' buffelgrass

Note: Hymenophyllum tayloriae Farrar & Raine, * TAYLOR'S or GORGE FILMY FERN (see Figure 14), which primarily occurs only as a gametophyte, is known from Lawrence, Winston and Franklin counties in northwest Alabama.

Pteridophytes of Northeast Alabama and adjacent highlands iv: Polypodiales (Dryopteridaceae to Osmundaceae)

Effects of growing conditions on the male gametophyte. Pages 220-229 in A.

Flowering-shoot defoliation affects pollen grain size and postpollination pollen performance in Alstroemeria aurea

Gametophyte development in Mexican species of Gleicheniaceae ferns.

Desarrollo de los gametofitos de especies mexicanas de helechos de la familia Gleicheniaceae

Notably, there is not enough information about the generative meristem, basic anther structure and male gametophyte developmental stages of Lepidium sativum L..

Generative meristem, anther development and microsporogenesis in Lepidium sativum L

The study of orbicules could be particularly rewarding since they offer a window on several biological issues on the borderline between gametophyte and sporophyte, such as the ratio of sporophytic and gametophytic genetic control in the development of the sporoderm, the function and chemical composition of lipidic fractions of tapetal origin in flowering plants (Piffanelli et al., 1998), the patterned sporopollenin polymerisation in the anther mediated by 'white lines' and a glycocalyx, and the possible contribution of in vivo self-assembly of sporopollenin in the development of the sporoderm (Gabarayeva & Hemsley, 2006).

Orbicules in flowering plants: a phylogenetic perspective on their form and function

To determine the nature of the produced phycocolloid, we examined and quantified the native and alkali-modified carrageenan extracted from the different phases of life history of the studied carrageenophytes (tetrasporophyte, female gametophyte, and nonfructified thalli) with FTIR-ATR, FT-Raman, and [sup.1]H-NMR.

Population studies and carrageenan properties in eight Gigartinales (Rhodophyta) from western coast of Portugal

Vadas (1972) posited that water south of Point Conception is too warm for gametophyte fertility and young sporophyte growth, suggesting that this individual is likely a singleton and not part of a sustained range expansion.

Where the Weird Things are: A Collection of Species Range Extensions in the Southern California Bight

These factors are directly related to the biology of ferns for both the gametophyte and sporophyte phases (Windisch, 1990).

Abiotic factors drives floristic variations of fern's metacommunity in an Atlantic Forest remnant/Fatores abioticos regulam as variacoes floristicas na metacomunidade de samambaias em um remanescente de Floresta Atlantica

Comparative morphology of the gametophyte of homosporous ferns.

Morfogenesis de la fase sexual de los helechos epifitos Microgramma mortoniana y Pleopeltis macrocarpa (Polypodiaceae) de la Reserva Natural Punta Lara, Buenos Aires, Argentina

One recognised problem during cycad seed germination testing is that sowing seeds with small embryos immediately after harvest results in water uptake and expansion of the gametophyte and the opening of the sclerotesta.

Comparative Biology of Cycad Pollen, Seed and Tissue--A Plant Conservation Perspective

Full browser ?

CITE

Site: Follow: Share:

Open / Close