sporophyte


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spo·ro·phyte

 (spôr′ə-fīt′)
n.
The diploid spore-producing phase in the life cycle of a plant that exhibits alternation of generations. It is the dominant stage in vascular plants.

spo′ro·phyt′ic (-fĭt′ĭk) adj.

sporophyte

(ˈspɔːrəʊˌfaɪt; ˈspɒ-)
n
(Botany) the diploid form of plants that have alternation of generations. It develops from a zygote and produces asexual spores. Compare gametophyte
sporophytic adj

spo•ro•phyte

(ˈspɔr əˌfaɪt, ˈspoʊr-)

n.
the form of a plant in the alternation of generations that produces asexual spores. Compare gametophyte.
[1885–90]
spo`ro•phyt′ic (-ˈfɪt ɪk) adj.

spo·ro·phyte

(spôr′ə-fīt′)
In plants, fungi, and certain algae, the individual organism or generation of organisms that produces spores. A sporophyte is formed from the union of the nuclei of male and female reproductive cells, and each of its cells has two sets of chromosomes. In nonvascular plants, such as the mosses and liverworts, the sporophyte is a small plant or a part that grows on top of the gametophyte. In vascular plants, such as the ferns, grasses, conifers, and flowering plants, the sporophyte is the main form of the plant. Compare gametophyte.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sporophyte - the spore-producing individual or phase in the life cycle of a plant having alternation of generationssporophyte - the spore-producing 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
References in periodicals archive ?
The Cyperaceae sporophyte embryo is considered 'mature' when it is dormant within a ripe fruit prior to germination (Van der Veken 1965).
The moss then produces a capsule-bearing stalk -- a sporophyte -- and the capsule contains spores, not seeds, which are so light and tiny that they can find their way to the jet stream and migrate around the globe.
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.
Rare sporophyte found in Europe for Herbertus sendtneri with a range expansion to Africa and Malaysia.
Characters separating hornworts from other bryophytes include, among others: 1) thallus solid or with mucilage cavities, Nostoc colonies usually present in the thallus and visible as black dots, rarely as blue lines (in Leiosporoceros); chloroplasts large, 1-2(-4) per cell, frequently with a pyrenoid; 2) gametangia immersed in the thallus, originating from an inner thallus cell; 3) sporophyte narrowly cylindrical, without seta; 4) sporophyte growth by means of a basal meristem; 5) spore maturation asynchronous; and 6) capsule dehiscence gradual, from the apex slowly downwards, by means of 2(-4) valves, rarely by an operculum.
Significant differences (P < 0.05) in the number of SADc were registered for the substrates used in the cultivation (Table 1), where the sporophyte phase obtained its greatest values on the calcareous substrate.
In contrast, Hopkin and Kain [18] found that Laminaria hyperborea plants transferred to Cu-free medium after as many as 14 or even 28 days were able to recover despite a delay in sporophyte formation.
Rao, the latter decision being grounded on the aquatic habit and the cladocarpous position of the sporophyte of C.
This makes the information clear that, unlike the condition, most [F.sub.1] hybrids of other plant species and certain genotypes of Darwin hybrid tulips showed normal diploid behavior, that is, haploid gamete and diploid sporophyte development [59].
Germination and sporophyte frequency of two sympatric species of Blechnum (Blechnaceae)
In addition, the SEP gene is involved in the development of almost all floral organs, including the reproductive organ sporophyte embryos (Honma and Goto, 2001).